Hello. I was wondering if any of you would be able to help me pin point a problem i am having with my 3800. Starts up fine when cold, but as soon as the engine tempereture gets up to running tempereture the car starts to hesitate and bog, then stalls... I have change coil pack(and modual). spark plugs, and wires. thermostat is new, gas filter is also new. I cant pin point this problem. I was thinking that maybe it could be a tempereture sensor or just something simple. Please help me out on this one. Thank you very much in advance. Gord Rideout

Is the engine light on?

No. the engine light is not on.

How many miles on the car?

Try shaking the catalytic convertor. If you hear rattling, it'* clogged and the likely root of your issue. A clogged cat will not throw a check engine light, but will give you the symptoms you described.

will do. Just had the etest done a few weeks ago but ill give anything a try. this cars pissing me off. thank you

How about that mileage?

300km well maintanced

ive got my fingers crossed. hope its just the cat. ive been throwing away alot of money on engine parts. but atleast i know everything ive changed is working...lol