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#216214 - 10/04/11 03:31 AM 2004 GTP Strange Problem
dakcornholio Offline
Junior Member
Registered: 10/04/11
Posts: 2
I have a 2004 GTP Comp G with about 53k miles. I have recently been having problems with the car. When I put the car in drive and start to go the RPM's drop (surge) like it is going to die. If I push on the gas nothing happens. The car will then suddenly lunge forward on its own. The problem is very sporadic and there is no check engine lights. I have replaced the fuel filter, 180* T-Stat, spark plugs/wires, cone filter, and cleaned the MAF and throttle body. I only run premium fuel. On a side note I did replace both front hub assemblies. It also has been having a rough idle once the car is warmed up. This is also very sporadic. The only person I found with a similar problem was on this forum but it was never said what caused the problem. Here is a link to the forum:

Any advice would be much appreciative, thanks!
#216652 - 11/05/11 09:35 AM Re: 2004 GTP Strange Problem [Re: dakcornholio]
rayramjet Offline
Junior Member
Registered: 11/05/11
Posts: 4
I had this problem and I had two problems, the connector at the throttle body was corroded, you can unplug and reconnect it a couple times and if it goes away for a while, clean and use electric grease when you go back together. Also had a vacuum line off that will shut down the throttle