A warning and a heads up for anyone needing to do this fix. Spend the extra money and buy OEM parts. Get two sensors, the wire connectors and new gaskets. I chased my tail with this and have done this process 5 times in two years. Finally got OEM parts and it's been smooth sailing.
I have used your video and only your video on this issue, that I am experiencing for the past week. I’m also replacing knock sensors and gaskets while I’m down that deep. I am doing that coolant hose that runs above the knock sensors. Thanks for a well detailed video. I’m glad you got a good deal after a sensor fix.
You rarely upload and you're almost at 1000 subs. Imagine you uploaded more often. im sure your channel would be a hit. Looking forward to the next vid 👍
This channel will definitely be a hit, remember he's been posting for less than two years. We're witness to the very beginning. He's got friendly personality, experience, open attitude, and he freely offers information that some guys leave out. He's also not afraid to show a mistake or a cut corner. That niche, of guys who make a living from fixing auction vehicles, is UA-cam gold. Only thing is, with popularity will come a few jackass trolls who will stop by to make snide remarks. I wouldn't hesitate to delete those that have no educational value, when they eventually show up.
Great video. Thanks. Just a couple of comments: to replace the rear intake gasket you have to remove the front coolant neck that bypass hose connects to. To get that you need to loosen couple of bolts on the front motor mount where one of it's brackets mounts on top of the coolant neck. Not a big deal...bolts are easily accessed. Also i would plug all intake ports with rags to prevent any debris or small parts from falling into the cylinders. That would ruin your day.
Haha yeah my check engine is on right now. It’s throwing knock 2 and o2 sensor. So hoping it’s just the knock which is why it won’t shift properly. And hope I can do this without having to go to a shop!
CommonSense: You don't remove all that to just replace one Knock Sensor. You are supposed to replace both Knock Sensors, Coolant Pipe and Knock Sensor Wire.
mines doing the same thing 5 Grand at between 60-70 has intermittent engine light so def noticed a difference of when its on and off kinda feels like not gearing up thanks man this was a huge help
Do you think its possible to remove the 2 allen key bolts with just an allen wrench or do you recommend a socket for that? I will be doing a ton of work (valve covers, spark plugs and both knock sensors) and want to see if there are any additional tools needed.
@@lucio350zx Appreciate the reply. With yours on the throttle body was there a 12mm bolt on the side facing the fire wall? If so how did you remove it because it is literally the only thing holding me back right now and I think I may be rounding the nut.
Do you recommend replacing both sensors if it’s a personal vehicle and replacing the coolant line as well? What about the sensor harness? Good idea to replace that as well?
I got this same job done but now I'm having a bad smell inside the cabin. It smells like smoke/gasoline mixed , any ideas ? Maybe the mechanic didn't put something back into place .
I would add a diesel turbocharger to it so it can have more power. I'd also add Porsche brakes on it so it can stop better. It needs a spoiler on the back because of how fast it will go. If not, you'll get speed wobbles. I know, because I'm a professional mechanic. Ask me.
You did all that work and there are two sensors. Why would you replace only one of them? I’d never do that just because of the location and the amount of heat in that general area. The other one will fail obviously soon. Foolish. Spend the money and also change that coolant line across the top of the sensors. Dam dude!
I agree if this was a vehicle I was going to keep i would of used all new and replace both sensors but these vehicles are for resale so we have to do them on a budget and at $150 a sensor sometimes I just have to bite the bullet and get it done
A warning and a heads up for anyone needing to do this fix. Spend the extra money and buy OEM parts. Get two sensors, the wire connectors and new gaskets. I chased my tail with this and have done this process 5 times in two years. Finally got OEM parts and it's been smooth sailing.
Also, Z you skipped an important step. How to get the new bottom gaskets in.
Thanks for the warning!
I have used your video and only your video on this issue, that I am experiencing for the past week. I’m also replacing knock sensors and gaskets while I’m down that deep. I am doing that coolant hose that runs above the knock sensors. Thanks for a well detailed video. I’m glad you got a good deal after a sensor fix.
You rarely upload and you're almost at 1000 subs. Imagine you uploaded more often. im sure your channel would be a hit. Looking forward to the next vid 👍
Yes thank you for the support and encouragement I will try to post more often I know I said it before just have to get it work into my routine
This channel will definitely be a hit, remember he's been posting for less than two years. We're witness to the very beginning. He's got friendly personality, experience, open attitude, and he freely offers information that some guys leave out. He's also not afraid to show a mistake or a cut corner. That niche, of guys who make a living from fixing auction vehicles, is UA-cam gold. Only thing is, with popularity will come a few jackass trolls who will stop by to make snide remarks. I wouldn't hesitate to delete those that have no educational value, when they eventually show up.
THANK YOU SO MUCH, this video is so detailed. Really helped me out a lot!
Would’ve been nice/better if he called out the torque specs, or list it in video description box.
Great video. Thanks. Just a couple of comments: to replace the rear intake gasket you have to remove the front coolant neck that bypass hose connects to. To get that you need to loosen couple of bolts on the front motor mount where one of it's brackets mounts on top of the coolant neck. Not a big deal...bolts are easily accessed. Also i would plug all intake ports with rags to prevent any debris or small parts from falling into the cylinders. That would ruin your day.
Goddamn how tf did you get a 1st gen highlander for $400. You guys who work on cars always find some magic ass deals
When you watch the auction three times a week and do this for a living you're bound to come across a good deal every once in awhile
Haha yeah my check engine is on right now. It’s throwing knock 2 and o2 sensor. So hoping it’s just the knock which is why it won’t shift properly. And hope I can do this without having to go to a shop!
CommonSense: You don't remove all that to just replace one Knock Sensor. You are supposed to replace both Knock Sensors, Coolant Pipe and Knock Sensor Wire.
100%correct
aads1w h66ciu😊 11:53 😅
lol, tell everyone how they are supposed to live. Write a book. Travel around and do speeches
Good video. I have a snap on adjustable wrench just like yours. Best one I've ever had.
Thanks
Yes snap-on tools are my favorite
Can a bad Knock sensor also set a pending PO174 and PO171 codes?
mines doing the same thing 5 Grand at between 60-70 has intermittent engine light so def noticed a difference of when its on and off kinda feels like not gearing up thanks man this was a huge help
Coolant sort of got everywhere. Will this be a problem? It got all over the lower intake
Would the knock sensor cause a misfire?
I like how someone already removed the pain in the ass bracket. I just cut mine
Do you think its possible to remove the 2 allen key bolts with just an allen wrench or do you recommend a socket for that? I will be doing a ton of work (valve covers, spark plugs and both knock sensors) and want to see if there are any additional tools needed.
All you need is a normal 10mm 12mm and 14mm and an extension.
@@lucio350zx Appreciate the reply. With yours on the throttle body was there a 12mm bolt on the side facing the fire wall? If so how did you remove it because it is literally the only thing holding me back right now and I think I may be rounding the nut.
@@Animehound1 I was able to use a small ratchet. Didn’t give me much of a problems.
did the engine light come up ever again?
Thanks bro you made that look super smooth! 🫡💯
Do you recommend replacing both sensors if it’s a personal vehicle and replacing the coolant line as well? What about the sensor harness? Good idea to replace that as well?
Sorry for the late response but yes I would recommend replacing all of those while you are in there if you plan on keeping the vehicle for a long time
@@zsproshop what is that coolant hose called? Is there a part number for it? Hard to explain to parts departments
@@WarWizardProductions did you ever find that coolant hose?
@@ryanlamb697 bypass coolant hose?
Where is the torque converter clutch solenoid on the first gen highlander?
I got this same job done but now I'm having a bad smell inside the cabin. It smells like smoke/gasoline mixed , any ideas ? Maybe the mechanic didn't put something back into place .
Is the Knock sensor going bad a result of refusing to Tune your vehicle by Oil change, spark plugs, air filters etc?
heat destroys the wire harness since its under the intake, it is subjected to immense heat and cold cycles and the wiring becomes brittle.
What is the the price for this service?
I would add a diesel turbocharger to it so it can have more power. I'd also add Porsche brakes on it so it can stop better. It needs a spoiler on the back because of how fast it will go. If not, you'll get speed wobbles. I know, because I'm a professional mechanic. Ask me.
Sounds like you're having a good time
He is having a great time🎉
You did all that work and there are two sensors. Why would you replace only one of them? I’d never do that just because of the location and the amount of heat in that general area. The other one will fail obviously soon. Foolish. Spend the money and also change that coolant line across the top of the sensors. Dam dude!
I agree if this was a vehicle I was going to keep i would of used all new and replace both sensors but these vehicles are for resale so we have to do them on a budget and at $150 a sensor sometimes I just have to bite the bullet and get it done
How long did this job take you?
@@imike1007 about four hours.
So throw the car away if it needs a knock sensor..