dylan1630 Posted November 26, 2010 Report Share Posted November 26, 2010 In my 04 grand prix, sometimes when i go to start it it acts like it started but it actually didn't. I have to give it gas when i start it to keep it running. I don't know why it does this, it'll sound like it turned over but it actually didn't, it just drops off right away. Why is this? What can i do to stop this? By the way, it doesn't make a difference whether it's hot or cold outside, it does it in both conditions, whether it's raining or sunny also. Quote Link to comment Share on other sites More sharing options...
Andrew Posted November 26, 2010 Report Share Posted November 26, 2010 so it essentially wont idle? will it once it is all warmed up? Quote Link to comment Share on other sites More sharing options...
AL Posted November 26, 2010 Report Share Posted November 26, 2010 I know exactly what he is describing as I see a bunch of 3800s do it... It starts and then dies right away unless you hit the gas... My friends bonne was doing that and it stopped after he had the cat replaced... Not sure if your situation is similar Quote Link to comment Share on other sites More sharing options...
mfewtrail Posted November 27, 2010 Report Share Posted November 27, 2010 That '04 is drive by wire isn't it? If so, I would assume it something to do with a pedal position switch or the throttle itself. Maybe try cleaning the throttle body and see if that helps. Quote Link to comment Share on other sites More sharing options...
dylan1630 Posted November 28, 2010 Author Report Share Posted November 28, 2010 I know exactly what he is describing as I see a bunch of 3800s do it... It starts and then dies right away unless you hit the gas... My friends bonne was doing that and it stopped after he had the cat replaced... Not sure if your situation is similar That is EXACTLY what it does, as soon as you turn the key and it turns over it dies UNLESS i have my foot on the gas. Only for a few seconds do i need to leave my foot on the gas, then it's ok, but if i don't have my foot on the gas it dies right away Quote Link to comment Share on other sites More sharing options...
dylan1630 Posted November 28, 2010 Author Report Share Posted November 28, 2010 what do you mean drive by wire? it's electric throttle i think, there's no way to pull the little thing to make it rev on the engine like in my old grand prix with the 3.1, i guess it's electric Quote Link to comment Share on other sites More sharing options...
mfewtrail Posted November 28, 2010 Report Share Posted November 28, 2010 what do you mean drive by wire? it's electric throttle i think, there's no way to pull the little thing to make it rev on the engine like in my old grand prix with the 3.1, i guess it's electric "Drive by wire" is just another term for "electronic throttle body." While there's no linkage on the outside to grab to crack open the throttle blade, you can move the throttle blade with your fingers. Here's the electronic throttle body cleaning procedure from the factory service manual if you do decide to clean it: Quote Link to comment Share on other sites More sharing options...
dylan1630 Posted November 29, 2010 Author Report Share Posted November 29, 2010 Thank you for finding that for me! When i get time i'm gonna try to do that, it just did that thing to me again today it drives me crazy, i don't know that it doesn't start sometimes because i don't always look at my rpm's and i'll go to back up and my car will be going forward because i'm on an incline and it scares the shit out of me lol every time i'm like WHAT THE HELL?! Quote Link to comment Share on other sites More sharing options...
mfewtrail Posted November 29, 2010 Report Share Posted November 29, 2010 Thank you for finding that for me! You're welcome. If you copy/paste the link to the image, you can view it in a larger size. The forum automatically scaled it down on my screen making the text considerably smaller. Quote Link to comment Share on other sites More sharing options...
timreams Posted August 3, 2011 Report Share Posted August 3, 2011 "Drive by wire" is just another term for "electronic throttle body." While there's no linkage on the outside to grab to crack open the throttle blade, you can move the throttle blade with your fingers. Here's the electronic throttle body cleaning procedure from the factory service manual if you do decide to clean it: Sorry to reopen this thread but i just created an account because i just bought an 04 GP GT1 with 49K on it and i have the same problem. unfortunately i cannot see the link in mfewtrail's reply. can some one help out with that? Quote Link to comment Share on other sites More sharing options...
Night Fury Posted August 3, 2011 Report Share Posted August 3, 2011 It's just saying to clean out the throttle body with throttle body cleaner. Not sure if that would solve the problem though. That said, I'm noticing that damn near every third gen GP does this now. The typical response of people is to slam the gas pedal as they start it..... Mine does it too and all I do to even start it is click the key. Not hold it til it starts, but to JUST CLICK IT OVER. It will continue cranking til it starts on its own. Once it has started, the idle drops WAY the fuck down(so much that it shakes) for just a split second, then recovers. Then all is well. I never touch the gas, and it has never died. Quote Link to comment Share on other sites More sharing options...
kuntzie Posted August 4, 2011 Report Share Posted August 4, 2011 in the 04s they were a return less fuel system with a filter under the car with a return hose, if the filter is old, its most likely causing this startup issue Quote Link to comment Share on other sites More sharing options...
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