high engine idle rpm
#1
high engine idle rpm
So the other day I started up my Camaro and the engine wanted to idle cold at about 1900 rpm. I immediately shut the vehicle off after realizing the rpm was not lowering. The car had 1/4 of fuel and a unknown vacuum leak somewhere. I need help finding a solution to this problem. I have tried to do a smoke test and the leak didn't rear its ugly face. I have replace my IAC, TPS and MAF sensors. I have cleaned the throttle body and checked everything I can. What do you guys think the problem could be? It doesn't happen just when the fuel is at a 1/4 of a tank either. Just the first time in awhile since its happened.
#3
TECH Fanatic
An unlit propane hand torch with the valve open and flowing propane can also reveal a vacuum leak - less chance of causing an engine fire. But either method works for revealing a vacuum leak.
Rick
Rick
#4
TECH Junkie
iTrader: (9)
WD40 works too in a pinch but the ether makes a noticeable leap in idle vs others I have tried. Engine cold reduces fire risk tremendously but indeed, spraying flammable substances at a running engine requires some fire safety preparation and awareness. Always keep a CO2 extinguisher nearby, especially when working on carburetors lol