What is the problem when car is losing power when it warms up stumbles after accelerating in park and sometimes surges when driving and when in park accelerating surges after 3500

Asked by Aug 11, 2014 at 10:36 PM about the 2004 Chevrolet Cavalier Sedan FWD

Question type: Maintenance & Repair

Replaced timing chain and coponets.
Replaced piston rings
Replaced all 16 valves
Coil pack
AIC valve
IAT sensor
MAP sensor
Throttle body

4 Answers


Have you checked your ECM's wiring, it sounds like you may have lost a ground pathway.


have you checked the throttle body ? it may be sticky or stuck.

If u the read Information I already replaced the throttle body


have you checked your thermastat ? and ecm would seem a good place to assume the problem is happening have you checked it for codes ? and it if it starts to stall out when its warm and not when its cold it would come to think its most likely a tempature sensor thats gone faulty or got faulty wiring to it.

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