Oil analysis is always the smart thing to do. The issue is whether the owner will hold a vehicle for a buyer and allow enough time to get results back…
if its a good deal, total peach, and the owner has just had enough of it then there is no way its sitting around. if its an ok car at an ok price it will sit around. good shit for cheap or free is a game of the quick and the dead.
I guess I'm lucky, I worked at a repair shop years ago. I realized that things have advanced way beyond my abilities. I get my repair work done at a shop owned by the son of a man I worked with way back when. He's like you, honest, smart, and thorough!
Oil analysis is one of the smartest things available. I had a cooling system problem and as soon as I fixed it I sent in an oil sample. They told me I needed to change oil because it showed signs of overheating. Your cooling system on a diesel also cools your oil. Best 35 dollars I have spent.
I had just changed the oil before the problem started and an oil and filter change on that engine was a 130 dollars. I do regular oil samples on all of my diesel engines. It will alert you of potential problems.
@@bryceocain5234 just changing oil may be fine but it is better do a oil sample and according to that change the oil. It will safe you money and help the enviroment more. Than run good fuel Like BP (Aral) Ultimate Diesel or Shell Vpower Diesel. Made out of GTL Fuel.
I like how you're honest, straightforward and to the point. If your shop could use a heavy diesel mechanic (class 8 trucks) with same values, gimme a call!
Used to work at a certified used car inspection dealer and let me tell you they did not actually inspect vehicles and the dopeheads I worked with would have missed rod knocks lifter tics and anything under the sun
It’s hard do get those analysis done. I do agree with getting one. I purchase my first diesel two years ago used from and older gentleman. So far its been the best purchase I’ve made. It’s made me want to replace all my heavy duty gas truck into diesel. I understand that not getting and inspection can lead to a big loss or bad investment. But every time I get an inspection, by the time I get the paper work. The truck has sold and I’ve lost around 10 truck worth purchasing. I’ve also skipped on a lot of money pits too thanks to an inspection. Not sure if it’s just my luck but I’ve noticed the diesel truck owners are more likely to screw you with a bad truck then someone that has a gas truck.
I just worked on a 6.7 with a knock his like that; it was a bad injector! But the engine was not idling correctly as well. My client came to me as a last resort before putting an engine in it. Everyone else said it was a rod knock. It was a Cummins though!!!
Tho i agree 1000% we do pre purchase inspections.. basic lookovers.. check for code clearing.. suspension/brakes.. general fluid levels.. the basics.. but better than nothing.. and SO MANY people... after telling them.. NO not worth it.. RUN.. do NOT sink money into this... Buy it or continue to dump money into a bad vehicle... DONT GET ATTACHED!!! and if the deals too good to be true.. its probably a lemon.
I was looking for a truck not too long ago. Saw one I thought might be good. Got the Carfax on it. Saw it had been to a mechanic, didn't see why. Called the mechanic and asked them to look it up in their records. Mechanic told me the engine was trash and not to buy it. So I took his advice, got a different truck, and now I'm very happy
You come across as an honest mechanic. Most mechanics I know see a little old lady come in (or another sucker) and say to themselves "here is an opportunity to support my drug and alcohol habit."
I almost do the same thing but before I called my mechanic and I sent to him a picture of the truck and millage he told me if it's Ford run away get a 5.9 or a 6.7 Cummins and I did it no regrets. He saved me a lot of money because the truck was a very nice 6.0 power stroke.
You dropped the entire sub-frame.. propeller shaft and diff together??lifted the body off the chassis. I guess that saves more time than taking everything apart ... great videos.. from 🇨🇦 ❤
If the owner of the truck would have waited for an oil analysis, it might have saved him because the truck would have been sold to someone else before he got the results back. No one is going to "hold" the vehicle until an oil analysis is completed.
If you give $1k deposit that says you will pay the rest ones oil analysis comes back and if the numbers come within limit’s then I don’t see reason why someone couldn’t hold it. There is also bunch of scammers who want vehicle reports from their preferred website. Sellers also have to be careful about getting screwed over by fake reports.
The reality is if someone is selling their vehicle, even with a deposit, no one is going to want to wait weeks for an oil analysis when there are people willing to purchase the vehicle without one.
My truck had a nasty rod knock. I decided to pull the motor. Started to unbolt transmission and torque converter and found 1 converter to flex plate bolt missing and the others all loose. Sounded exactly like a rod knock.
@@josephward6422 definitely could be something else. Just because one other time some other vehicle made a similar noise doesn't mean this motor doesn't need replaced or rebuilt.
@@josephward6422mostly. Dave is a know it all mechanic that works in a big shop. They don’t have big shops from doing honest repairs. 99% of big shops profit from over sales and add on’s. This 100% could have simply been a reasonable repair. Dave will sell a new engine to the owner. Repair this one and sell it on the used market for several thousand doubling his profit. But this is another reason I never by ford products. They are junk.
I bought a used Ram truck from a friend. I told him "pick a sale price that you feel is fair for me and you, and I will probably say 'sold' and not haggle." He said $2500. Deal. Then I asked him to make a list of the work that it needs. Luckily I have a good honest mechanic. We are working through the list as money comes in. It's so hard to find an honest seller and honest mechanic.
Yeah, like any seller is going to sit there and operate and want to do a "Used Car Inspection" or wait around for the possible buyer to get their used oil analysis back, by that time that oil analysis is back, he would probably have sold it
The same thing happened to a buyer that I sold a car to. The long block had just been replaced two weeks prior. He drove it home and it blew up. As the seller I stepped up and got it back to the shop and covered any extra expense that the shop would charge it was under warranty but sometimes you just have to be a good person.
Im driving a 25 year old Honda. Everything on it can be fixed or replaced in my garage. In total, its cost less than 30k, in 25 years, that includes buying it new, tires, brakes,. it still has its og exhaust and paint. 110k miles. . This video proves why I won't waste my money on some like that truck. I rent them, when I need them, with all the money Ive saved. .and you should too.
@@jfdb59 Pretty presumptuous of you to say it was a rod bearing. It could be a wrist pin or half a dozen other things. Maybe Dave will make a video to show us what the issue was.
First thing I do when I’m buying a vehicle it started up. See how it starts and let it run the whole time. I’m looking over the vehicle inside and out under the hood under the car and then I drive it. I want it to be full temperature for a while. I wanna see how the transmission shift the differential whateverthis truck was doing this when he bought it I guarantee you.
not always rod knock it could be backfire knock from misfire or bad fuel pressure from injector or rail or pump or clog. also could be timing tension also had pulleys on the alternator sound similar, But i think you are spot on thats prolly main bearings are worn out and they put gear oil in it to keep it quite long enough to sell. but take off the pan replace main bearings with engine still in if you can on those.
Love hearing the knowledge and breakdown of the what’s and why’s on your videos. Starting to get annoying with all the sales plugs. I get it though it’s helping the business you have. Just hate to hear a sales pitch every video I’d rather hear what the 50 years of experience has to say.
The first car I bought, the sills rotted away in like 2 months. Safety checks at both a local garage AND the main dealer (after purchase) turned up nothing, said it was fine. Two months later it's scrap - garage got it up on the ramp for an MOT and called me to say they wouldn't even charge me because it was about to fall in half. I have never bought a car without a prepurchase inspection by a trustworthy engineer since. I'd rather pay a couple of hundred in advance to know I'm not gonna be spending thousands on repairs or a replacement.
I also learned the hard way, though not too expensive, don't travel long distances for used cars. Almost always you'll get burned or scammed. Tried it twice and now i only go no more than about an hour away.
Speedco oil change facilities which are along the interstate for semis can do an oil analysis in less than 10 minutes$22 I do it all the time it's saved me from buying junk
When buying a used truck, you better a: know your shit or b: bring someone who knows their shit. My buddy almost bought a chyrsler sebring for 2000, didnt even pop the hood. I started it, popped the hood, hit the throttle cable and found bad motor mounts. The guy didnt mention any repairs needing to be done. Next was a Jetta, he wanted it so bad and it was only 1250 and i said BET ME something is catastrophically wrong with it. Front suspension was gone, rattle in the exhaust manifold, found rust, etc..but hey...it had a good stereo, probably worth more than the car. I offered him 300 bucks to tow it to a scrap yard. My buddy was pissed but in a happy way lol
Thank goodness this became an advertisement for one of Dave’s products-I was worried that he’d reverted back to the old, informative, ad-free content that made him so watchable.
Rock know usually is removing the oil pan rotating the engine changing the entire rod , rod arms bearings sleeves ,, that move loosely ,, but sometimes it may be the piston were the sleeve slip ins so entire piston , n that involves the removal head ,, rod knock causes lack of oil or wrong oil either to thin or too thick heating up to quick causing bearings to dry quick forcing the knuckle movement ,, heavy oil is recommended 1040 winter ir 5 40 winter , some put 1540or 50 summer always 5 ,,
The oil analysis makes sense but let's be real....no seller is going to let someone take a oil sample, send it out, wait 1-2 weeks, and hope for a call back. I get it...but not practical
The thing is: Is it really a rod knock? A bad injector sounds the same!!!! Trust me! I know! Dave, did you cancel the cylinders with your scanner to see if you had a bad injector?
If the guy who drove his car into that dealership shows you anything, it's that car buyers these days don't comprehend that a used car is in most cases getting sold for a reason
@jasoneardley2202 Well, technically speaking, diesel trucks before 2000s you stay away from gm 12 valves and 7.3 idis and powerstrokes are what you want
I just worked on a 6.7 with a knock his like that; it was a bad injector! But the engine was not idling correctly as well. My client came to me as a last resort before putting an engine in it. Everyone else said it was a rod knock.
One way to look at it, If the vehicle is still for sale after getting the oil analysis/inspection then the vehicle is for you depending on the results. And if it sold by the time you got back then it wasn't meant to be. Next!!!
I get what you’re saying about the oil analysis, it’s a great idea!! But no dealer is gonna let you drain some oil out of a vehicle on the lot for you to do an analysis on it. Not unless it’s a vehicle that’s been sitting for ages that they really want shot off..
Not always a rod knock in them newer diesels!!!! Bad injector will make the same sound!!! It will nice to see if Dave canceled the cylinders to see if it was actually a rod knock!!!😉
This oil analysis deal only works in a perfect world. If I am selling a truck that I want to get rid of and it is more than 10k, it is first come, first served.
I always tell people take it to a mechanic and have them do an inspection . My daughter did on a used car from a dealer in Pueblo Co and mechanic said run from this car.
Oil analysis is not practical for buying a car, once you told them you wanted one, they'll probably change the oil prior to you coming to get the sample.
Oil Analysis is of extreme importance for preventative maintenance, which minimizes future repair bills ( Insurance ) and increases Car)Truck longevity. 'Getting more bang for your buck'.
I mever bought a car this bad but one i had to replace full suspension and brakes, might as well be just as bad. Looking back on my used car endeavors i think i got away pretty clean
Wait for your oil analysis. If you are meant to have that vehicle, you will get that vehicle. If not be glad you did not get it. Dave is giving you good sound advice, especially on these diesels. People are foolish not to listen to him. Either that or they have more money than sense
I don’t know in the USA, but in Ireland, you always have a warranty if you buy from a dealer . But not if you buy private. That is a very expensive lesson .
@@CumminsTurbo4 they dont sell them in athe countries we're talking about. Law requires they be provided for 1 yr by dealership for any used car they sell
I had one pulled in from Peru to upper Maine and had bad luck. There were strange packages in the engine and some Bolivian with a briefcase insisted I take 500000 for the 89 Ford Escort.
Oil analysis only makes sense using the recommended factory oil filters etc for possibly warrantied N making someone else paying for it or lawsuit,, but also additives like best line ,, motorkote , marvel mystery oil in oil to clean parts I don't know about diesel kleen nor seafoam on diesels but works on gasoline engines,,
Go buy a oils filter and do a swap,, cut open the old one and cut out a section of the filter material, inspect the pleats after squeezing out the excess oil,, about the quickest and cheapest form of esp one can do.
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Hi Dave. Where can I get hold of your used car buyers guide?
tnx for not selling the flashlight every video❤
He is selling used car buyers guide for 50.00 I like you Dave but come on!!! I think you probably have enough cash by now
@@thetreeo9860 50 is not to much
Stop crying. This is a business not a handout😂
Oil analysis is always the smart thing to do. The issue is whether the owner will hold a vehicle for a buyer and allow enough time to get results back…
This is exactly what I was going to say, sure that guy would have wanted an oil analysis but no seller is going to wait that long for the results.
if they dont bye😂❤
@@MrJokey16pay them an extra $100 or $200 or more to "sign agreement to hold it" ...if it's worth it to you, THEN make it worth their time too.
if its a good deal, total peach, and the owner has just had enough of it then there is no way its sitting around.
if its an ok car at an ok price it will sit around. good shit for cheap or free is a game of the quick and the dead.
Fomo is not friendly to buyers.
Hard to believe that he didn't hear that rod banging like the hammers of hell before he bought it...
Must be what a blacksmiths shop during the crusade era sounded like
it's diesel they always make clacking noises anyway.
Once a bearing spins the rods can knock quiet at first and gets worse as the bearing turns to dust
Not everyone does sometimes people think it’s something else so you really can’t blame them
Have you considered there might have not been a noise before he bought it? Or are you just omniscient?
I guess I'm lucky, I worked at a repair shop years ago. I realized that things have advanced way beyond my abilities. I get my repair work done at a shop owned by the son of a man I worked with way back when. He's like you, honest, smart, and thorough!
Oil analysis is one of the smartest things available.
I had a cooling system problem and as soon as I fixed it I sent in an oil sample. They told me I needed to change oil because it showed signs of overheating. Your cooling system on a diesel also cools your oil. Best 35 dollars I have spent.
Could have just spent the 35 on an oil change.. changing oil is never a bad thing so why not just do it if you think there's an oil issue.
I had just changed the oil before the problem started and an oil and filter change on that engine was a 130 dollars. I do regular oil samples on all of my diesel engines. It will alert you of potential problems.
@@bryceocain5234 35 dollars on an Diesel oil change..... HAHAHHAHAHAHHAHA. I would still have the oil analyzed, it can show you many things.
@@bryceocain5234that engine takes more than $35 worth of oil…
@@bryceocain5234 just changing oil may be fine but it is better do a oil sample and according to that change the oil. It will safe you money and help the enviroment more. Than run good fuel Like BP (Aral) Ultimate Diesel or Shell Vpower Diesel. Made out of GTL Fuel.
Dave, you are a class act! Coolest guy who loves to see his employees thrive. I would drive from Canada to come have my car serviced there. Cheers
I like how you're honest, straightforward and to the point. If your shop could use a heavy diesel mechanic (class 8 trucks) with same values, gimme a call!
Agreed. Best to wait for results instead creating a big hole in your pocket!!
Used to work at a certified used car inspection dealer and let me tell you they did not actually inspect vehicles and the dopeheads I worked with would have missed rod knocks lifter tics and anything under the sun
It’s hard do get those analysis done. I do agree with getting one. I purchase my first diesel two years ago used from and older gentleman. So far its been the best purchase I’ve made. It’s made me want to replace all my heavy duty gas truck into diesel. I understand that not getting and inspection can lead to a big loss or bad investment. But every time I get an inspection, by the time I get the paper work. The truck has sold and I’ve lost around 10 truck worth purchasing. I’ve also skipped on a lot of money pits too thanks to an inspection. Not sure if it’s just my luck but I’ve noticed the diesel truck owners are more likely to screw you with a bad truck then someone that has a gas truck.
I just worked on a 6.7 with a knock his like that; it was a bad injector! But the engine was not idling correctly as well. My client came to me as a last resort before putting an engine in it. Everyone else said it was a rod knock. It was a Cummins though!!!
Had identical noise on a mercedes diesel everyone said it s fucked it was a bad injector
l wonder if he did an injector cut out test, before contaminating the engine. He probably did.
Had a knocking 6 times bigger than that on a Duramax and on a 6.7 powerstroke, it was a bad injector,
Tho i agree 1000% we do pre purchase inspections.. basic lookovers.. check for code clearing.. suspension/brakes.. general fluid levels.. the basics.. but better than nothing.. and SO MANY people... after telling them.. NO not worth it.. RUN.. do NOT sink money into this... Buy it or continue to dump money into a bad vehicle... DONT GET ATTACHED!!! and if the deals too good to be true.. its probably a lemon.
I was looking for a truck not too long ago. Saw one I thought might be good. Got the Carfax on it. Saw it had been to a mechanic, didn't see why. Called the mechanic and asked them to look it up in their records. Mechanic told me the engine was trash and not to buy it. So I took his advice, got a different truck, and now I'm very happy
You come across as an honest mechanic. Most mechanics I know see a little old lady come in (or another sucker) and say to themselves "here is an opportunity to support my drug and alcohol habit."
I almost do the same thing but before I called my mechanic and I sent to him a picture of the truck and millage he told me if it's Ford run away get a 5.9 or a 6.7 Cummins and I did it no regrets. He saved me a lot of money because the truck was a very nice 6.0 power stroke.
You dropped the entire sub-frame.. propeller shaft and diff together??lifted the body off the chassis. I guess that saves more time than taking everything apart ... great videos.. from 🇨🇦 ❤
Love your pegram with LAKE SPEED Jr and his oil analysis business…. Thanks!
If the owner of the truck would have waited for an oil analysis, it might have saved him because the truck would have been sold to someone else before he got the results back. No one is going to "hold" the vehicle until an oil analysis is completed.
If you give $1k deposit that says you will pay the rest ones oil analysis comes back and if the numbers come within limit’s then I don’t see reason why someone couldn’t hold it.
There is also bunch of scammers who want vehicle reports from their preferred website.
Sellers also have to be careful about getting screwed over by fake reports.
The reality is if someone is selling their vehicle, even with a deposit, no one is going to want to wait weeks for an oil analysis when there are people willing to purchase the vehicle without one.
@ reality is that most cars are for sale longer than a week
Used ford diesel buyers guide… Don’t buy!!!
@dakotartcrazy Go visit your mother, she misses her dumb kid
Great advice Dave I've been a mechanic for 55 years but theis new cars it's sad
He should have bought your secret sauce and $80 flashlight to make sure secret sauce went in
😂😂😂
You mean the 100$ flashlight....😊
@@vicmorrison8128 sorry my bad 😞
Defo
@@vicmorrison8128really ?
My truck had a nasty rod knock. I decided to pull the motor. Started to unbolt transmission and torque converter and found 1 converter to flex plate bolt missing and the others all loose. Sounded exactly like a rod knock.
Yes, is this Dave selling another engine job, or is it something else?
@@josephward6422 definitely could be something else. Just because one other time some other vehicle made a similar noise doesn't mean this motor doesn't need replaced or rebuilt.
@@josephward6422mostly. Dave is a know it all mechanic that works in a big shop. They don’t have big shops from doing honest repairs. 99% of big shops profit from over sales and add on’s. This 100% could have simply been a reasonable repair. Dave will sell a new engine to the owner. Repair this one and sell it on the used market for several thousand doubling his profit. But this is another reason I never by ford products. They are junk.
I bought a used Ram truck from a friend. I told him "pick a sale price that you feel is fair for me and you, and I will probably say 'sold' and not haggle." He said $2500. Deal. Then I asked him to make a list of the work that it needs. Luckily I have a good honest mechanic. We are working through the list as money comes in. It's so hard to find an honest seller and honest mechanic.
Yeah, like any seller is going to sit there and operate and want to do a "Used Car Inspection" or wait around for the possible buyer to get their used oil analysis back, by that time that oil analysis is back, he would probably have sold it
The same thing happened to a buyer that I sold a car to. The long block had just been replaced two weeks prior. He drove it home and it blew up. As the seller I stepped up and got it back to the shop and covered any extra expense that the shop would charge it was under warranty but sometimes you just have to be a good person.
As a veteran German technician, I always see this to this day. Oh it sounds good and it's shiny.. Always goes bad..
Im driving a 25 year old Honda. Everything on it can be fixed or replaced in my garage. In total, its cost less than 30k, in 25 years, that includes buying it new, tires, brakes,. it still has its og exhaust and paint. 110k miles. . This video proves why I won't waste my money on some like that truck. I rent them, when I need them, with all the money Ive saved. .and you should too.
It could have passed every test and still blown up. Mechanical devices fail. He was just unlucky that it happened to him. Timing is everything.
Wrong. It would’ve shown excessive bearing material in the oil analysis.
@@jfdb59 Pretty presumptuous of you to say it was a rod bearing. It could be a wrist pin or half a dozen other things. Maybe Dave will make a video to show us what the issue was.
Maybe some of daves sauce might have helped as a up sell
First thing I do when I’m buying a vehicle it started up. See how it starts and let it run the whole time. I’m looking over the vehicle inside and out under the hood under the car and then I drive it. I want it to be full temperature for a while. I wanna see how the transmission shift the differential whateverthis truck was doing this when he bought it I guarantee you.
Like me the late 90s early 2000s GM trucks best investments I have made besides going off grid
Sure glad i decided to keep and restored my 1969 C-20 long bed...
not always rod knock it could be backfire knock from misfire or bad fuel pressure from injector or rail or pump or clog. also could be timing tension also had pulleys on the alternator sound similar, But i think you are spot on thats prolly main bearings are worn out and they put gear oil in it to keep it quite long enough to sell. but take off the pan replace main bearings with engine still in if you can on those.
Seems Savey Sellers would have Oil Analysis done to bolster Ask Price .... and protect from Buyer lawsuit
Keep sharing your knowledge sir, it’s greatly appreciated!
Dave you should start selling cars yourself people trust you man😊😊😊❤❤😊
He probably does to some extent, all shops do on a very small scale. But all the hidden gems go to friends, family, or another actual dealer.
😅 he wouldn't make a dollar and go under in a month or less
Love hearing the knowledge and breakdown of the what’s and why’s on your videos. Starting to get annoying with all the sales plugs. I get it though it’s helping the business you have. Just hate to hear a sales pitch every video I’d rather hear what the 50 years of experience has to say.
Sorry, we will be through with this giveaway soon enough. Trying to put out educational ad free videos as well. Thanks for watching.
The first car I bought, the sills rotted away in like 2 months. Safety checks at both a local garage AND the main dealer (after purchase) turned up nothing, said it was fine. Two months later it's scrap - garage got it up on the ramp for an MOT and called me to say they wouldn't even charge me because it was about to fall in half.
I have never bought a car without a prepurchase inspection by a trustworthy engineer since. I'd rather pay a couple of hundred in advance to know I'm not gonna be spending thousands on repairs or a replacement.
I also learned the hard way, though not too expensive, don't travel long distances for used cars. Almost always you'll get burned or scammed. Tried it twice and now i only go no more than about an hour away.
Speedco oil change facilities which are along the interstate for semis can do an oil analysis in less than 10 minutes$22 I do it all the time it's saved me from buying junk
Ive been working on vehicles for 36 years and never had an oil analysis or heat of anyone having it done 🤷
Wow. Yeah, I'd say get the oil analysis first.
If you're going to fly out of state for a deal, it's likely by the time you get your oil analysis back the car will have already been sold
I recall that Al Joad replaced a knocking rod bearing in the Hudson Super Six along the side of the road, in The Grapes of Wrath.
@@stuartjohnston4353I should read it again it's so good.
Thank you, always better to get as much information as you can.
When buying a used truck, you better a: know your shit or b: bring someone who knows their shit. My buddy almost bought a chyrsler sebring for 2000, didnt even pop the hood. I started it, popped the hood, hit the throttle cable and found bad motor mounts. The guy didnt mention any repairs needing to be done. Next was a Jetta, he wanted it so bad and it was only 1250 and i said BET ME something is catastrophically wrong with it. Front suspension was gone, rattle in the exhaust manifold, found rust, etc..but hey...it had a good stereo, probably worth more than the car. I offered him 300 bucks to tow it to a scrap yard. My buddy was pissed but in a happy way lol
Hey IAAI COPART Manheim post oil analysis reports on all vehicles 😂😂😂
Would be nice tho😏😏😏
Maybe if he had ordered a case of secret sauce he would still be on the road.
Thank goodness this became an advertisement for one of Dave’s products-I was worried that he’d reverted back to the old, informative, ad-free content that made him so watchable.
Lmao I have always thought he was bad for this
What ad? Where is he wrong?
Best comment Terry and I whole-heartedly agree!
@@Jim-hm9chthe ad is the fact that he sells his own used car inspection guide, what a coincidence that he recommends people get one
boo who for you . bu by
My own experience: it's worth letting a professional inspect the car before making a purchase decision. I can recommend.
You bet👍
I really thought he was gonna say he needed the secret sauce
Sound wisdom. Dave 👍🇺🇸
Yeah. It’s never good when it sounds like parts are trying to get out of the engine😂
Well the saying is we don't plan to fail, we fail to plan...
“If we don’t plan; we are planning to fail!”
Rock know usually is removing the oil pan rotating the engine changing the entire rod , rod arms bearings sleeves ,, that move loosely ,, but sometimes it may be the piston were the sleeve slip ins so entire piston , n that involves the removal head ,, rod knock causes lack of oil or wrong oil either to thin or too thick heating up to quick causing bearings to dry quick forcing the knuckle movement ,, heavy oil is recommended 1040 winter ir 5 40 winter , some put 1540or 50 summer always 5 ,,
The oil analysis makes sense but let's be real....no seller is going to let someone take a oil sample, send it out, wait 1-2 weeks, and hope for a call back. I get it...but not practical
Hard to find.
But always good to try to get them to take a cash deposit to hold it while the oil analysis comes back
It is easy to miss a rod knock on a diesel engine
The thing is: Is it really a rod knock? A bad injector sounds the same!!!! Trust me! I know!
Dave, did you cancel the cylinders with your scanner to see if you had a bad injector?
I've never even heard of an oil analysis, going to have to look into that
If the guy who drove his car into that dealership shows you anything, it's that car buyers these days don't comprehend that a used car is in most cases getting sold for a reason
Some of Daves customer got money to burn
The best advice is to buy any Ford vehicle before 2000’s production 😂
The best advice is to not buy a ford period GM🤙🏼
@jasoneardley2202 Well, technically speaking, diesel trucks before 2000s you stay away from gm 12 valves and 7.3 idis and powerstrokes are what you want
@@jasoneardley2202 good morning to you too.
Or just buy a Toyota.
Sounds mint if you dont crank it .
Can u do some videos on the 3 ltr jeep diesel
I just worked on a 6.7 with a knock his like that; it was a bad injector! But the engine was not idling correctly as well. My client came to me as a last resort before putting an engine in it. Everyone else said it was a rod knock.
One way to look at it, If the vehicle is still for sale after getting the oil analysis/inspection then the vehicle is for you depending on the results. And if it sold by the time you got back then it wasn't meant to be. Next!!!
Thank you sir for in forming us
Was recently shopping for a car every dealer I asked for a ppi from a 3rd party rejected. They aren’t playing fair so I bought nothing.
If anyone wants an oil analysis done go to a oil lube for 18 wheelers most of those places have a machine in their shop that does that.
I used to do oil analysis with caterpillar rigs caterpillar in Little Rock Arkansas they close their oil lab down and now they send it off to Miami
PRE purchase inspection
💯
I get what you’re saying about the oil analysis, it’s a great idea!! But no dealer is gonna let you drain some oil out of a vehicle on the lot for you to do an analysis on it. Not unless it’s a vehicle that’s been sitting for ages that they really want shot off..
Rod knock....new engine....game over!😔
Not always a rod knock in them newer diesels!!!! Bad injector will make the same sound!!! It will nice to see if Dave canceled the cylinders to see if it was actually a rod knock!!!😉
Texas honesty in full display.
I thought they’re in Utah
@@Hey-jm2hw The seller of the truck was in Texas the mechanic shop is in Utah.
@@M4TALMAN thanks for the clarification
Yeah bc theres not assholes in every state right?
OP's girl cheated on him with a Texas Chad. He's been salty about TX ever since.
This oil analysis deal only works in a perfect world. If I am selling a truck that I want to get rid of and it is more than 10k, it is first come, first served.
I always tell people take it to a mechanic and have them do an inspection . My daughter did on a used car from a dealer in Pueblo Co and mechanic said run from this car.
Oil analysis is not practical for buying a car, once you told them you wanted one, they'll probably change the oil prior to you coming to get the sample.
The smartest thing to do when selling a car is to change the oil anyway
Even if you traveled long to buy a vehicle never be afraid to back out of the deal if there are warning signs.
How many lottery tickets for engine rebuild ??
It's cheaper to just scrap it and get a new truck at that point lol.
Not anymore. A new diesel is 80k engine only 15k
Oil Analysis is of extreme importance for preventative maintenance, which minimizes future repair bills ( Insurance ) and increases Car)Truck longevity.
'Getting more bang for your buck'.
In oil analysis from Blackstone can sometimes take up to 2 months.
They take two weeks, I've done many of them
I would love to talk to the owner of that truck. I also bought a diesel from a dealership in lewisville texas that had a bad motor.
Nice one Dave
I mever bought a car this bad but one i had to replace full suspension and brakes, might as well be just as bad. Looking back on my used car endeavors i think i got away pretty clean
I wish you could have your work shop in India, and i would definitely change my career to mechanical beauty ❤.
new cars are not made to last, cant you all see this' why is my 1977 Strate 6 still running well? never had a problem? so easy to work on?
They burn valves in cylinders 3/4 all the time!!!
@@josephward6422 still runing tho, easy to fix
Nightmare to take a car to this guy 😂. Engine work all the time.
Are you sure that knocking was a rod or one of your mechanics tapping on the frame with his wrench? 😂
That would be hilarious.
Wait for your oil analysis. If you are meant to have that vehicle, you will get that vehicle. If not be glad you did not get it. Dave is giving you good sound advice, especially on these diesels. People are foolish not to listen to him. Either that or they have more money than sense
The use car guide has to be a #1 seller 😂
I don’t know in the USA, but in Ireland, you always have a warranty if you buy from a dealer . But not if you buy private. That is a very expensive lesson .
Germany's the same; dont think the US has this as a standard by law
Canada the same
Sure, sure, stealerships will loooove to sell you a warranty 😂😂😂 wayyyy better off buying from individuals here in the states. Most dealers are crooks
@@CumminsTurbo4 they dont sell them in athe countries we're talking about. Law requires they be provided for 1 yr by dealership for any used car they sell
Love ya Dave keep up the good work 🫡
Pretty sure the fix is a 12 valve cummins.
I had one pulled in from Peru to upper Maine and had bad luck. There were strange packages in the engine and some Bolivian with a briefcase insisted I take 500000 for the 89 Ford Escort.
Big end crankshaft main bearings worn out pistons touching the head timing will be well out to 😊😢😢😢😢 open Wallet surgery😅😊😊😊😢😢😢
Yeah I own a 6.0 and I never have to worry about hearing that knock while the engine is running….because mine just cranks lol😂
Oil analysis only makes sense using the recommended factory oil filters etc for possibly warrantied N making someone else paying for it or lawsuit,, but also additives like best line ,, motorkote , marvel mystery oil in oil to clean parts I don't know about diesel kleen nor seafoam on diesels but works on gasoline engines,,
Go buy a oils filter and do a swap,, cut open the old one and cut out a section of the filter material, inspect the pleats after squeezing out the excess oil,, about the quickest and cheapest form of esp one can do.
Yes, now that would have been nice to see!!!
Love ya man don't even have a diesel
Like the dealership doesn’t change oil and then just put it on the lot. It hasn’t mixed through enough to know if there’s an issue.
Pre-purchase inspections are paramount.