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
SOURCE: 89 Chevy Corsica keeps stalling while driving
. 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.
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.
SOURCE: Cobalt not running at low rpm.......
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.
Greg
SOURCE: 2005 chevy cobalt, car wont start ... check
disconecting the battery should reset the pcm. but you will need to find out what caused the problems.
SOURCE: My 98 Chevy Malibu v6 3.1 liter engine high idling
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.
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