Blown Head Gasket ? Coolant Pressure Test
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- Опубліковано 8 вер 2024
- Get the MityVac coolant Pressure tester here amzn.to/2plFRKh
Today we are working on Trevor's Jeep, his radiator has a leak and we are trying out the Mityvac coolant pressure tester. this is good for looking for leaks in the coolant system. it is also really good for looking for headgasket issues that a person may suffer. Trevor's jeep with the bad radiator did have a coolant system leak but it past the head gasket test.
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When pressure testing for a blown head gasket how much should the pressure jump when revving?
when engine starts,coolant pump will built pressure as well.I think the meter will raise up.
I have one and I like it for checking for leaks. Lots of tools in the tool box make ya sleep better at night. LOL
What if you saw oil in the coolant...you suspect head gasket leaking between coolant and oil passage....
Could you remove all coolant from system and then pressurize it and listen for air in the crankcase? Or vice versa and pressurize the crankcase with coolant in system and look for bubbles?
I don't see how that test could work on checking your head gasket unless the thermostat is open. If its closed you just reading radiator pressure.
when they open the cap to put the kit in the radiator its steaming so probably thermostat is already open
Another way to check for a blown head gasket is to run it with the engine with the cap off and look for bubbles coming up from the coolant. Also on a cold engine if you start it and the radiator hoses pressurize within a minute is a sure sign of a blown head gasket.
+retiredppd that and if your exhaust is pure white and the oil looks like coffee
we were always told to shy away from the coffee looking oil as an indication for an internal coolant leak, mainly because if the customer only does short trips and the engine doesn't reach normal operating temp it can cause condensation in the oil.
jerry bskorner I drive a 2004 Honda civic. I was driving back from Washington to California and my car started to slowly overheat so I pulled over. popped my hood and coolant was everywhere! I refilled it and my car was fine and was able to drive it over 400 miles until I got home. any ideas what the problem could be??
@@SuhMike Hey I have the same issue. Did you find out what it was?
I don't see how the pressure test works for checking head gasket unless the thermostat is opened up.
How long do u have to let the guage set for to know if u loose pressure like 10mins or more
Bsk did u guys found what it was
Jerry you wearing jackets it is 94 degrees in Dallas Texas today no snow that was supposed to have another big nasty storm coming tonight
How much pressure loss is normal to lose during a coolant system pressure test?
This seems like one of those specialty tools that a shop itself would buy and probably not a mechanic as an individual. But, if I came across a used one at a good deal I would definitely buy it too.
i know this is 4 years late but my local autozone rents these out, just picked one up the other day!
I have one and have used it many times
I use my Car then left it for 1-3 days Without using going out to check water Pipe And its still not Soft, when removing coolant cap air is rushing out ... Its a Bmw f10 Any idea?
Christian Andolini
I’m not a professional but typically if this only coolant in the system, it doesn’t take that long to condense it back. There may by flue gas trapped in the cooling system. Emphasis “ may” be
How do you discount other leaks my car is leaking oil into the coolant through the oil cooler
BSK GARAGE,
/// .. what testing tool do you use to test and check the temperature gauge in your cars dashboard is working correctly or is not working correctly? what do I use to test the temperature gauge?
Thanks Jerry. !!
I have no knowledge of engine & mechanic. I don't understand from this video. What is/are the result show in this video that you concluded that there was NO HEAD GASKET PROBLEM. Please explain, anyone???
why you started engine?is it dangerous?
Combing music videos with car repair never works out.
Finally! A normal person on UA-cam that doesn't wear those stupid latex gloves.
Head Gaskets. I get some white goo on my oil cap. Might be a head gasket. But fuck it I have over 1 000 000 kms (600 000 miles) so I am not to worried about it. I haven't noticed any low coolant so if it is leaking it is a small one. As for oil Oh man that is a whole other story. I have to put about three litres in the old van between oil changes.
I get that too john, it's hot - cold cycles and condensation. My Chevy doesn't show it but ya my ford was like that from new . Nothing to worry about. Try the lucas oil stabilizer it works for my 6.0 chevy , I put one liter in and 5 liters reg oil. Let me know the results .
I will look into that Steve thanks.
The Plow Guys My Silverado done that, found out hose to pcv valve was collapsed, once I replaced it I never had that problem again.
I will have to take a look into that thanks
Hey, do you still have this? I've been watching your videos for years and I recently realized you're from alberta. -40 slushed up my jeep and it overheated hard. I'd be happy to bring ya a case for f*kn beer time.
In this weather you need a winter front on the Jeep to avoid the radiator freezing up
And if you have a cracked head that only opens up after running the engine hard, have fun.
Yeah I had to deal with that at on a Komatsu skidsteer this week . Not fun at all .
Exactly... did this exact mistake, while I ran the test it held the pressure for a full 10 mins, went for a drive over 50 mpg with a faulty temp gauge and ended up taking off the head again and redo what I initially came to fix+the pressure leak from the cylinders made my radiator give up 😂
sweet tool
......and/or a cylinder leak down test
Sir meri gadi hai polo desiel mai sir mai janana chata hu ki meri gadi coolant jayada kha rahi hai
Problem is not in gasket, but in coolant hyperpressure.
Take off the gasket ring from overflow tank cap. Save 3000$ for no time fix
And no tools
qb
Can you please explain that.
My Honda Civic always has low coolant and overheat. No leak , holds pressure upon cooling pressure test, passed combustion test ( blue color liquid hasn’t changed)
The only problem is the coolants always always gets pushed to the overflow and doesn’t drain back to the radiator.
@@tothepointvids5192 Have you replaced your radiator cap with a new OEM unit. Sometimes they fail and I have read they can cause this.
@@tothepointvids5192 that's the problem I'm having on my car did you fix this?
I tried everything ( in my case) to proof it is NOT. blown head gasket and I was proven wrong. It was a blown head gasket. I ended up replacing the head gasket and knock on wood, the car is back on the road at least for now.
@@tothepointvids5192 nightmare I'm 100 the same trying to prove its not gasket even doing block tests but I think I'm going to have to bite the bullet and go for it 😭
MFBT!!!! WOOOOOOOOOO!!!!!!!!!!
I don't understand when he starts and revs the engine to see if gauge goes up, how would that indicate a blown head gasket?
Compression entering the coolant system
What year is Trever's Jeep?
A block test would've saved u the time of replacing radiator n hoses just in case it was head gasket n customer couldn't afford the gasket job. Thoroughly diagnosis ur situation First!
block test?
Could always just rent it! 🤷♂️ free vs 300, I take free. Lol
For many people that will be the way
I was looking to find out how much pressure to apply in one of these tests. And look: It's Tomcat's owner!
I think it’s the other way around he chose me to be his owner
@@TestDontguess Well I think he made a good choice.
Since I posted that comment, I found out that the proper maximum pressure is on the radiator cap. American is in PSI and some others are in atmospheres.
Should have just ruevved it manually at the throttle body 😎
Why ? It doesn’t matter
@@TestDontguess oh, but it does. And because, you’re standing right in front of it, and you wouldnt have to rely on yelling to someone else. No Need to be salty
'Mite - ee'