http://www.grandprixforums.net/ L67 (1997-2003 Model Years) L32 (2004 Model Year) en Thu, 09 Sep 2010 19:33:00 GMT vBulletin 60 http://www.grandprixforums.net/images/styles/grand/misc/rss.jpg http://www.grandprixforums.net/ http://www.grandprixforums.net/coolant-elbows-36243.html Thu, 09 Sep 2010 18:23:26 GMT do any l67s only utilize one coolant elbow like my 97 l36 does? if so what years? do any l67s only utilize one coolant elbow like my 97 l36 does? if so what years? ]]> 3.8L V6 Supercharged (L67)(L32) noreasonwhyy http://www.grandprixforums.net/coolant-elbows-36243.html http://www.grandprixforums.net/cant-figure-out-rear-gasket-tear-lead-other-problems-36222.html Thu, 09 Sep 2010 06:24:17 GMT So im driving down the freeway, 70-75mph, all of a sudden i see smoke (due to rear gasket having a crack), engine light turns on and pull off, sure... So im driving down the freeway, 70-75mph, all of a sudden i see smoke (due to rear gasket having a crack), engine light turns on and pull off, sure enough oil all over the motor, see the dipstick out(as if it was pushed out).

leaking a bit of oil, tow it home, start it up to get it up the garage and the car is vibrating hard enough to shake the steering wheel(when in Drive, even worse)

So take off the rear gasket notice it was damaged replaced it, drained the oil and notice glitter shavings, figure it might be Pushrod? or anything internal.
Replaced oil and filter, turn it on and still same thing( now i definitely know its internal.)

and it tossed out a Misfire Code...

any idea what goes bad first in this scenario?

car is a 2002 GP with 160k miles on it, knew something was bound to go sooner or later... specially the way i drove that thing.


Thanks guys for looking. ]]> 3.8L V6 Supercharged (L67)(L32) CheeWee http://www.grandprixforums.net/cant-figure-out-rear-gasket-tear-lead-other-problems-36222.html http://www.grandprixforums.net/what-does-take-trap-105-110mph-36219.html Thu, 09 Sep 2010 04:22:43 GMT Hi Guys, First post on the forums (will get some pics together soon). Recently, purchased a 97 GTP for next to nothing and am very pleased with... Hi Guys,

First post on the forums (will get some pics together soon). Recently, purchased a 97 GTP for next to nothing and am very pleased with the performance thus far. Ultimately as I start to replace parts/modify the vehicle, my goal is to eventually trap about 105-110MPH in the quarter. What is the best upgrade path to get there? Will the trans take a dump long before those trap speeds? I have read a fair amount on upgrades but would like to hear some opinions.

Appreciate the help. ]]> 3.8L V6 Supercharged (L67)(L32) Elite6 http://www.grandprixforums.net/what-does-take-trap-105-110mph-36219.html http://www.grandprixforums.net/99-grand-prix-gtp-no-start-36211.html Thu, 09 Sep 2010 01:04:33 GMT I found that there is no fuel pressure at the rail, so i checked voltage to the pump and i'm only getting 5 volts. First question should there be 12 volts ( the battery is fully charged). I replaced both relays and the fuse. I tried the high speed pump trick and i'm still getting 5 volts on the same wire on the connector. There isn't any check engine lights on, the secrurity lights isn't flashing. At first i thought it was the fuel pump but not now that im only getting 5 volts to the pump. Any suggestions would be great, thanks. ]]> 3.8L V6 Supercharged (L67)(L32) atvrider85 http://www.grandprixforums.net/99-grand-prix-gtp-no-start-36211.html http://www.grandprixforums.net/stuck-park-36162.html Tue, 07 Sep 2010 22:10:24 GMT So i come out of the store one day and try to leave and im not able to shif out of park, when i try i hear a clicking under the dash, iv heard... So i come out of the store one day and try to leave and im not able to shif out of park, when i try i hear a clicking under the dash, iv heard something like the shift lock solenoid? if thats it how do i go about fixing it like where is is it located exactly ]]> 3.8L V6 Supercharged (L67)(L32) Ricky21 http://www.grandprixforums.net/stuck-park-36162.html http://www.grandprixforums.net/car-sputters-when-accelerating-hard-36161.html Tue, 07 Sep 2010 21:33:16 GMT I am new to this forum and was hoping for some assistance or someone with the same issue. I have a 2005 GTP Comp G. I bought the car with 30,000... I am new to this forum and was hoping for some assistance or someone with the same issue. I have a 2005 GTP Comp G. I bought the car with 30,000 miles on it. Once in a great while, it would sputter when I would acclerate hard. I took it back to the dealer and they could not find anything wrong. That was about two years ago. It now does this everyday. Everytime I hit the gas hard, it gets up to about 3500rpm and sputters without shifting into the next gear. If I let off the gas, it shifts fine. I have seen several links with somewhat similar problems and it seems there could be several fixes for this like MAF sensor, CAT, and Shift Solinoid.
Any help would be much appreciated. This is my second GP and I absolutly love it. ]]> 3.8L V6 Supercharged (L67)(L32) joemama22 http://www.grandprixforums.net/car-sputters-when-accelerating-hard-36161.html http://www.grandprixforums.net/highway-over-heating-36146.html Tue, 07 Sep 2010 17:00:27 GMT lately (last 2 months or so) I have been getting some bad over heating while on the highway (over 55mph and up to 230*) but when i slow down or going... lately (last 2 months or so) I have been getting some bad over heating while on the highway (over 55mph and up to 230*) but when i slow down or going around town it drops down to normal (about 170*) AC being on has made no difference...

anyone know what i should try looking at? im kinda stuck :(

thanks,
Jarred ]]> 3.8L V6 Supercharged (L67)(L32) gtpsleeper http://www.grandprixforums.net/highway-over-heating-36146.html http://www.grandprixforums.net/3-4-pulley-07-gp-gt-36122.html Mon, 06 Sep 2010 21:48:13 GMT Do you guys know of the correct pulley to purchase if i have a 07 gp gt and want to go to a 3.4 inch pulley? This website says GM's Series III V6 supercharged engines, but then says grand prix 1997-2006 so im not sure.....

GM 3.8 Liter V6 Supercharged Application

Also i assume it is a factory nose drive and that is what i think i need, but am not sure if i need a magnuson nose drive...? ]]> 3.8L V6 Supercharged (L67)(L32) gmoney25 http://www.grandprixforums.net/3-4-pulley-07-gp-gt-36122.html http://www.grandprixforums.net/s1x-xp-36121.html Mon, 06 Sep 2010 21:47:40 GMT What should i go with fellas. I don't know much about cams but I want a good cam. Im planning on going e85.. I have the injectors on the way.

My engine is a top swapped l36 with mods in sig.

So what to choose and why? Please help. ]]> 3.8L V6 Supercharged (L67)(L32) Gafford44 http://www.grandprixforums.net/s1x-xp-36121.html http://www.grandprixforums.net/bad-coupler-36115.html Mon, 06 Sep 2010 19:20:58 GMT Im getting a ticking/ tapping type of noise and at first i thought it might be a lifter, but now im thinking its the s/c coupler I tried taking a... Im getting a ticking/ tapping type of noise and at first i thought it might be a lifter, but now im thinking its the s/c coupler I tried taking a video of the sound but its kinda hard to hear but i can post it if anybody wants. But i have this one and was wondering if this is too much play in the pulley for it to be a bad coupler?

MVI_0054.mp4 video by rickyyy_01 - Photobucket ]]> 3.8L V6 Supercharged (L67)(L32) Ricky21 http://www.grandprixforums.net/bad-coupler-36115.html http://www.grandprixforums.net/whats-piece-called-around-crankshaft-36101.html Mon, 06 Sep 2010 13:29:47 GMT a few questions, im developing an oil leak where theres a small puddle resting in the lower motor mount. i believe its coming from behind the crank... a few questions, im developing an oil leak where theres a small puddle resting in the lower motor mount. i believe its coming from behind the crank pulley when i had to take it out to replace my CPS sensor. i think the gasket/seal thats wrapped around the crankshaft is broken and causing my oil leak.

what's that gasket/seal called? heres a pic for more clarification:



with crankshaft:


is it called the front main seal as found from zzp's website?



lastly how hard is it to replace the gasket/seal? do i need to take the front cover gasket off or just pull the gasket/seal out and swap in the new one(whatever its called)?

thanks in advance!!! i want this leak gone:th_thumbsup-wink::) ]]> 3.8L V6 Supercharged (L67)(L32) fst http://www.grandprixforums.net/whats-piece-called-around-crankshaft-36101.html http://www.grandprixforums.net/intercooler-cores-36058.html Sun, 05 Sep 2010 13:49:30 GMT I am one of those do it your selfers who want to do everything from scratch. I am building one of those phenolic intercoolers for my 2000 gtp but... I am one of those do it your selfers who want to do everything from scratch. I am building one of those phenolic intercoolers for my 2000 gtp but cannot find a supplier for the air to water cores. I have everything else but cannot source a core manufacturer/supplier. Anyone out there done this type of project have any names/websites. Thanks in advance ]]> 3.8L V6 Supercharged (L67)(L32) sandman7900 http://www.grandprixforums.net/intercooler-cores-36058.html http://www.grandprixforums.net/supercharger-actuator-36045.html Sat, 04 Sep 2010 21:41:05 GMT *when you get a new supercharger actuator do u have to adjust it or do you just pop it on and go???? :confused:*

when you get a new supercharger actuator do u have to adjust it or do you just pop it on and go???? :confused:

]]> 3.8L V6 Supercharged (L67)(L32) PTGsDaytona500GTP http://www.grandprixforums.net/supercharger-actuator-36045.html http://www.grandprixforums.net/supercharger-has-lost-its-whine-36044.html Sat, 04 Sep 2010 21:37:10 GMT Hello to everyone here at GPforums, this is my 1st post. I have a 99 GTP with 152,000 miles, its had a recent tune up, plugs, wires, fuel filter... Hello to everyone here at GPforums, this is my 1st post. I have a 99 GTP with 152,000 miles, its had a recent tune up, plugs, wires, fuel filter ect....My wife normaly drives this car and i am just finding out after a 600 mile round trip that the supercharger isnt working. the boost guage only goes up a 1\4 of the way at full throttle, no whine and the motor feels dead. Just had the converter and resinator replaced before our trip and got an average of 27 to 28 mpg. I need help diagnosing this problem? Please help!! ]]> 3.8L V6 Supercharged (L67)(L32) ck1racer http://www.grandprixforums.net/supercharger-has-lost-its-whine-36044.html http://www.grandprixforums.net/knocking-sound-engine-36015.html Sat, 04 Sep 2010 00:45:40 GMT Hey, brand new here -- my low oil level light was off and on for about 3 weeks on my 1999 GTP S/C. Still had about 45% on my oil life left according... Hey, brand new here -- my low oil level light was off and on for about 3 weeks on my 1999 GTP S/C. Still had about 45% on my oil life left according to the dash. Then the oil warning light came on last night and I started hearing a knocking coming from the engine while driving home. I stopped at a light and the car sputtered and died. It started right back up and I made it home. I check the oil this morning, it was low. Added some oil. I left for work today -- all was good. until I got to the highway and I started hearing the knocking again. Then the oil warning light came on for a few minutes and then went off. I got to work, check the oil -- low again. I put some more oil in and it's held for now, but am still hearing that knocking sound when I rev the engine...I'm going to take her to the shop tomorrow, but if anyone has any ideas, I'd love to hear them. Thanks! ]]> 3.8L V6 Supercharged (L67)(L32) BSP http://www.grandprixforums.net/knocking-sound-engine-36015.html