HOW TO TEST FOR A VACUUM LEAK IN 6 MINUTES!

Hello and welcome to 2CarPros! Today we will show you how to find a vacuum leak under the hood of your car. (IMPORTANT) Start with the engine cold and avoid spraying the exhaust manifolds.

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*Disclaimer: Please use all safety precautions

[bobv]

Great advice. Also the air canister may have pin holes or even rusted sections not clearly visible so do spray the canister as well.

[dreamingcode]

I think this is a good video but if you're going to use something flammable you should start by saying you need to have a fire extinguisher on hand and this is best done before the engine gets to operating temp using short sprays not saturation. Otherwise do this test with propane and extension hose

[AikidoTubeSock]

Won't carb cleaner damage plastic and rubber?

[Ax]

Excellent quick demonstration of what vacuum lines are & where they are located. What is the typical inner diameter of replacement vacuum hose? I have a 00mazda B2500se 2.5L vacuum leak is suspect.

[brandonk]

You should mention that if you are to use flammable liquids to test vacuum leaks, which is a 100 percent viable way of finding a leak, that you should never do it when your car is warm or near areas where spark is created. You should also always have a fire extinguisher or a garden hose handy just in case. If not, have fun possibly catching your entire engine on fire.

[livefreeortai-calicofounda]

i like how everyone criticises you. good vid. but they are right 🔥🔥🔥🔥🔥💥🙏

[nyacoustics]

i have a 95 lexus v8 sc400. I see smoke coming from the thick hoses towards the rear of the intake and close to the firewall. the hose clamps also look burnt and smell. I have rough idle, and the rpm goes in the wrong direction when i rev the car. The exhaust has sputtering sound. Does this sound like vacuum leak ?

[billcarney]

A tad of silicone grease on the vacuum tubing would not be a bad idea.

[jiameshacavers]

Just spray a lil at a time to fix out slowly not every where lol i

[dcnova]

What u should do is put car inside and turn light out then look for sparks!

[DougHinVA]

stop wasting time fiddling and showing clearly deteriorated rubber coupling tubes.

[charlesdowns]

vacume gadge reading steady at 18. no leaks.

[sunlite]

Your 6 minutes are up. Got the repair . Where is the test???

[we-are-electric]

What about sources of ignition ? You spray a flammable liquid in the engine bay - one spark and you could have a fire.

[madetohelpyou]

Not good enough of a demonstration with respect to showing folks how to use the tester. Otherwise somewhat ok video

[tonycotta]

You forgot to mention not all cars are vacuum assist on there H vac system .

[joentjekapoentje]

Why not with smoke? I think its faster

[bigcountry]

No mention of cleaner being flammable. I would have burned my eye brows off already if it wasn't for other videos on here.