03 cavalier random stalling help!!

1SLODAK

1SLODAK

Forum Member
my fiance's has an 03 cavalier with the 2.2 ecotech motor and when the temp gets below 65 and its wet or damp outside the car will randomly stall when slowing down coming to lights. It was doing it all last winter and i thought i fixed the problem by replacing the pcm. It does not stall when its dry out and warm. I checked the fuel pressure, all the engine grounds. Watched all the sensor outputs on a tech 2 and it has no check engine light. I could not find a broken wire and i checked the spark plugs and there all good. I cleaned the throttle body, checked and cleaned the intake tubing. I checked for vacuum leaks and found nothing. I thought it mite have been the IAC but i replaced that as well with no luck. SO anyone have any ideas where to go now. I dont want to throw parts at it and i cant get it to act up on a regular bases to properly diagnose the problem. So any help would be greatly appreciated.

Greg
 
^They still use that on '03s?
I'd try spraying it down with water and see what happens, my guess would be the coil pack or the boots to the plugs.
 
Thanks, lol. I know what it is. I thought he was referring to the TCC solenoid that used to go bad on the old 3spds, wasn't sure if they still used that system or not.
 
it mite..how do i check if it is? I already soaked the motor and got nothing. The plugs and ignition module are all in one unit one like this...
2003_Pontiac_Sunfire_Ecotec.JPG
 
You must log in or register to reply here.
Back
Top