Calling ALL GTP Owners for help

BadAndy · 09-17-2006

so today i have been testing the methanol kit in my car and right when i think i got it somehting i think bad goes wrong. i own a 99 GTP and as all you know it is only a matter of time before we need to start looking for a new tranny. the reaosn why i thin mine is going is because i on my last test i got on it and to it into 2nd to about 70, let off it and let the revs, drop , but when they did they wouldnt go below 1500. now when ever i rev to 2000 or higher then let off it stays at 1500 for 5-10sec or when i break i thought maybe my cruize got stuck on but nope cuz i never use it ill look at it tomorrow but was wondering if anyone had any suggestions?

Rocket468 · 09-18-2006

Your tranny is probley not the issue. It sounds like to me you have a vaccum leak off one of the vaccum lines that connect to the tb. Look them over real well and replace any of them that have a crack. Might also be possable that your t.b. spacer is leaking. Let me know.

GTP-Blackout · 09-25-2006

BadAndy...do you have the universal kit on your gtp?

I also have a '99 gtp and am considering putting on the kit.

BadAndy · 09-25-2006

um i have the 3800 kit and it works great until i hit a nasty dip in the road this weekend and now have a nasty eaxhaust leak around the downpipe section, thanx Rocket ill check the TB spacer out

GTP-Blackout · 09-25-2006

right on, 3800 progressive kit looks pretty sweet.

firemanGTP · 12-17-2006

Andy,
That doesnt seem too unusual to me...

I remember how mine doesnt idle ALL the way down right away, but I dont know about specific numbers. (im out of town right now and cant check my own car).

Anyway, if your sure this is not how is used to be, I would suggest you checking out the other (not alcohol specific) GP forums to get a little wider access.

I dont kow how well you are versed in the online GP community if you havent already done so, ask on Club GP ... (ClubGP Message Forum troubleshooting)

I agree that this sounds related more to vacum, maff sensor, or somthing not quite connected somewhere. If youve done any recent under thte hood work go back and make sure you didnt bump somthing or forget to put somthng back. (Ive ben there myself!) Good luck!

~Dan

09-17-2006	#1 (permalink)
BadAndy Alcohol Injection Join Date: Apr 2006 Posts: 42	Calling ALL GTP Owners for help so today i have been testing the methanol kit in my car and right when i think i got it somehting i think bad goes wrong. i own a 99 GTP and as all you know it is only a matter of time before we need to start looking for a new tranny. the reaosn why i thin mine is going is because i on my last test i got on it and to it into 2nd to about 70, let off it and let the revs, drop , but when they did they wouldnt go below 1500. now when ever i rev to 2000 or higher then let off it stays at 1500 for 5-10sec or when i break i thought maybe my cruize got stuck on but nope cuz i never use it ill look at it tomorrow but was wondering if anyone had any suggestions? Last edited by BadAndy; 09-17-2006 at 10:04 PM. Reason: typo

12-17-2006	#6 (permalink)
firemanGTP Water Injection Newb Join Date: Jul 2006 Posts: 6	Re: Calling ALL GTP Owners for help Andy, That doesnt seem too unusual to me... I remember how mine doesnt idle ALL the way down right away, but I dont know about specific numbers. (im out of town right now and cant check my own car). Anyway, if your sure this is not how is used to be, I would suggest you checking out the other (not alcohol specific) GP forums to get a little wider access. I dont kow how well you are versed in the online GP community if you havent already done so, ask on Club GP ... (ClubGP Message Forum troubleshooting) I agree that this sounds related more to vacum, maff sensor, or somthing not quite connected somewhere. If youve done any recent under thte hood work go back and make sure you didnt bump somthing or forget to put somthng back. (Ive ben there myself!) Good luck! ~Dan

09-18-2006	#2 (permalink)
Rocket468 DevilsOwn Staff Year: 2000 Make: Pontiac Model: Grand Prix Join Date: Apr 2005 Posts: 1,101	Your tranny is probley not the issue. It sounds like to me you have a vaccum leak off one of the vaccum lines that connect to the tb. Look them over real well and replace any of them that have a crack. Might also be possable that your t.b. spacer is leaking. Let me know.

09-25-2006	#3 (permalink)
GTP-Blackout Water Injection Newb Year: 1999 Make: Pontiac Model: Grand Prix Join Date: Sep 2006 Posts: 4	BadAndy...do you have the universal kit on your gtp? I also have a '99 gtp and am considering putting on the kit.

09-25-2006	#4 (permalink)
BadAndy Alcohol Injection Join Date: Apr 2006 Posts: 42	um i have the 3800 kit and it works great until i hit a nasty dip in the road this weekend and now have a nasty eaxhaust leak around the downpipe section, thanx Rocket ill check the TB spacer out

09-25-2006	#5 (permalink)
GTP-Blackout Water Injection Newb Year: 1999 Make: Pontiac Model: Grand Prix Join Date: Sep 2006 Posts: 4	right on, 3800 progressive kit looks pretty sweet.