In this video I go over all the different symptoms and things you can use to find vacuum leaks on your car, a vacuum leak can cause a rough, low or high idling car and its important to find an fix because it can damage engine components but also cause poor gas mileage. There are also a few things that get overlooked when checking for vacuum leaks like the EGR Valve, PCV Valve and the Power Brake Booster which I cover in this video.
Links to Tools and Products Used in the Video:
Propane Regulator: http://amzn.to/2b76gpi
Propane Cylinder: http://amzn.to/2b76P2e
Starting Fluid ($3 Shipped): http://amzn.to/2b779Oz
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Here are some other video’s you may find interesting:
How does a PCV System work: https://youtu.be/5Kt5ubcQaK0
How does an EGR System Work: https://youtu.be/-ZXnZUs9kP8
How to clean a Throttle Body and EGR Valve: https://youtu.be/7DCTDMDo3JU
How to Test an Ignition Coil Pack: https://youtu.be/XcmWa2Bt12U
How to test a throttle position sensor: https://youtu.be/_skVHdgtMTU
How to test a Mass Air Flow Sensor: https://youtu.be/p0ocaDmcAIM
How to test an Ignition Coil Pack: https://youtu.be/XcmWa2Bt12U
How to Completely Restore a Faded or Hazy Headlight: https://youtu.be/YHfrvX9GkX4
How to Remove Scratches from you car’s finish without any tools (Turtle Wax Scratch Repair Kit): https://youtu.be/n0oEffJ5Gx4
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Disclaimer:
Due to factors beyond the control of Ratchetsand Wrenches, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. Ratchetsand Wrenches assumes no liability for any property or personal damage that may arise from doing a repair on your vehicle after watching any of my repair video’s. Due to factors beyond the control of Ratchetsand Wrenches, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Again Any injury, damage or loss that may result from improper use of tools, equipment, or the information contained in this video is the sole responsibility of the user and not Ratchetsand Wrenches.
So how u fix it ?
I say, when cars cold, flop a leaf blowr on exaust pipe & blow, then hold up something w/smoke around all these spots – free, & no ugly clean up✋
straight to the point and easy to understand, great video
2000 für Export
Interesting video, like the way u went through step by step and pointed out parts when naming them, big help for a simpleton like me that knows nothing about cars… question, could i just take soapy water, spray it on there and c if bubbles r coming from somewhere, wouldn't that give me an idea as to where it's leaking, at least if it's a hose leaking, maybe not if it's a valve leaking
Great teaching ❤
What if the vehicle is running just fine but still has lean codes…thanks?
Very simple to learn from. A sincere teacher. Love his “no nonsense” approach…
Good info. I bought a car with a known bad egr and put a new one on. The result was still erratic cold start revs but at warm ran like silk. Took car for a test drive and wow the whistle of big vacuum leak. I think it is the silly Idea of rubber rings and plastic upper intake manifolds on V6 engines.
Great video! I am about to put it to use on a Toyota Rav4. Starting with cleaning the MAF sensor as the vehicle has 100k+ miles.
Thanks for the education!
So where's the part you show how to find a leak easily?
Decent videos get about 1% likes per view. This has about 1.4%. It deserves 5%.
7 years old and still very helpful
Great video
Your video was more helpful then all the other 20 I watched
I know nothing about bac systems and now I do thank you
Not bad tips but none of these worked for me…. I even went out and bought a fancy smoke machine that worked better but didn't find all leaks… I got a tip from different youtuber with that I was able to find the leak and didn't cost me nothing… all with parts I already have around the house that best…
buy a 50 dollar fog machine.. hook it to your intake. bam smoke test. vacuum leak found
My cars idle is rough only when it gets up to optimal operating temperature. It runs beautifully cold. Should I smoke it after it watms up?
How would you fix a p2187 code. Symptoms are rough idle, hesitation and hissing noise when ac is on?
Excellent video,
Question when smoke testing intake manifold for leak,
Do I have to set to TDC. or not? Reason for my question.
On my 1999 lexus RX 300 while smoke testing I get smoke from oil dip stick & oil cap, when I smoke test it.