I have an 03 dakota 4.7L. occasionally after start-up the engine will just bog out and runs really rough. it will do this for 5-10 seconds (really sucks when im pulling out into traffic) then it clears right up. 90% of the time it happens when the engine is warm. i have already replaced plugs, upstrem o2 sensor, and the temp sensor. could this be a TPS problem? it has not thrown a single code. any help would be greatly appreciated.

 

i had a camry that did that but it only did that when the engine was cold. as far as the problem on my 04 i havent had that problem. it always runs great. how many miles do you have on it?

 

of course it just went out of powertrain warranty, just over 70K

 

THAT SUCKS. i would take it to a local mechanic that you know and have him check it out.

 

Ok, i brought my truck to the dealer today and they couldnt find anything that would cause my problem, they said it could be $700+ just to diagnose the problem further. i then brought it to my mechanic and when he test drove it it did the normal rough idle while in gear and didnt want to move out of its own way, this was the worst it has ever done and it finally threw a code (what are the odds of that actually happening?) i dont remember what the actual # was but it was for the TPS. does anybody think that that is the whole problem?

 

it could be, id start there before paying anymore experts for there "opinion"

 

sounds like thats your problem for sure when i first got my truck the detailer they took it too fried the pcm and tps...they replaced the pcm and it would still bog out and studder and also idle like ****...took it back they replaced the tps and now it runs great so that should fix your problem id say.

 

how much would that run?
I've had the same problem for almost 2 years and I just stopped looking for the solution

 

I would replace the O2 sensors and clean the throttle body while you are at it.

 

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