I have this problem with my car when it idles my RPMs will go up and down between 1000 rpm and 1300 rpm. I was told it is a vacuum leak but I dont want to take it in to be fixed when it will cost me around $80 if not more. So what would be the best way to find out where the leak is?
2007-03-20 06:48:31 · 4 answers · asked by blue_ace85 1 in Cars & Transportation ➔ Maintenance & Repairs
A trick an old mechanic told me about and I tried with success is to use a small propane torch. After you start the car, turn on the torch WITHOUT lighting it and place the end of the torch near vacuum hoses and connections. If you have a vacuum leak the car will run normal when the end of the torch is placed near it.
2007-03-20 10:58:26 · answer #1 · answered by Rick B 3 · 0⤊ 0⤋
Disconnect vacuum hoses, one at a time, and plug the opening to see if the idle stays put.
If that is the problem.
2007-03-20 06:55:37 · answer #2 · answered by occluderx 4 · 0⤊ 0⤋
start you car and spray some carb cleaner around all vacuum hose and gaskets,including the intake.if you find a leak,it will tell you.
2007-03-20 06:54:45 · answer #3 · answered by Anonymous · 0⤊ 0⤋
vacuum leak, most common source is a broken plastic PCV valve
2007-03-20 06:55:21 · answer #4 · answered by Magikmann 4 · 1⤊ 0⤋