Question about 2005 Chevrolet Cobalt
It never stalls when giving gas. only when foot is on the brake. the rpm dial goes up and down when at a stand still. The meter fluxuates between 500 and 1000 rpms and dips below 500 causeing the car to shutoff. It also shuts off when driving down the highway
U may have a brake booster leaking vacum when u apply the brake its useing vacum from engine see if u can hear a hissing sound when apllying brake if so thats ur problem
Posted on Oct 02, 2012
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Posted on Jan 02, 2017
. Have it checked for a trouble code. It seems like a sensor problem. ( Idle position , crankshaft position, camshaft position sensors could be bad. Also the EGR valve could be bad. with a caode you can narrow it down a bit.
Posted on Feb 06, 2009
SOURCE: wont keep idle, car stalls out
I had this same problem on my 2005 monte carlo, took mechanic a while to figure out it was the idle air control valve. They also replace the idle air control motor.
Posted on Jun 05, 2009
All are possibilities but EGR valve makes the most sense. It's famous for causing poor idling and/or stalling at low RPMS. Best of luck.
Posted on Jun 18, 2009
You probably have a large vacuum leak. With the engine running, listen under the hood for a hissing sound. Check all of the rubber lines running from the intake.
Posted on Mar 05, 2010
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