New User -- 1998 Pontiac Grand Prix GTP
Thread Starter
Junior Member
Joined: Jun 2011
Posts: 6
Likes: 0
From: Overland Park, KS
New User -- 1998 Pontiac Grand Prix GTP
Greetings,
I'm a new user seeking to economically extend the life of my 1998 Pontiac Grand Prix GTP. Perhaps I'm deluded, but even at 145,000 miles, it is still a great car.
The problem that brought me to the forum deals with my supercharger which has suddenly failed. I suspect the boost control actuator and will research in the appropriate places here at GMForum.com. The goal is to avoid a mechanic holding me hostage to an unnecessary supercharger replacement. The unit still quietly spins, but there is not boost indicated or actual--I'm amazed at the loss of power during acceleration.
Thanks to all for a place to participate and learn!
Regards,
Monte
I'm a new user seeking to economically extend the life of my 1998 Pontiac Grand Prix GTP. Perhaps I'm deluded, but even at 145,000 miles, it is still a great car.
The problem that brought me to the forum deals with my supercharger which has suddenly failed. I suspect the boost control actuator and will research in the appropriate places here at GMForum.com. The goal is to avoid a mechanic holding me hostage to an unnecessary supercharger replacement. The unit still quietly spins, but there is not boost indicated or actual--I'm amazed at the loss of power during acceleration.
Thanks to all for a place to participate and learn!
Regards,
Monte
Retired Senior Admin
Expert Gearhead
Joined: May 2006
Posts: 29,661
Likes: 40
From: Sheboygan Wisconsin
Use your hand to rev the engine, does the actuator move? If not, check the vacuum lines, replace if needed. they do get brittle with time. Generic vacuum line works fine. If you have vacuum and it'* still not working, can you move the by pass arm? If so the actuator may be bad. ZZ performance sells them. Easy to replace. Most anything you need to do to keep your car running and out of the shop can be found here.
Thread Starter
Junior Member
Joined: Jun 2011
Posts: 6
Likes: 0
From: Overland Park, KS
Your response, along with the other greetings, is inspiring me to take this into my own hands. I'll follow the advice and get back with you. I had previously scoured the Internet without finding ZZ Performance. Thanks for that tip, too!
I must say the group is amazingly friendly and supportive.
I'll get back to you guys after my inspection tour--courtesy of Danthurs...
I must say the group is amazingly friendly and supportive.
I'll get back to you guys after my inspection tour--courtesy of Danthurs...
Senior Member
Certified GM nut
Joined: Jan 2011
Posts: 2,112
Likes: 19
From: Newfoundland, Canada
Good to hear that you're going to try it yourself. Its a good feeling fixing something on your own.
I'm glad you're liking it here, its a great place full of a lot of good information, and awesome people.
I'm glad you're liking it here, its a great place full of a lot of good information, and awesome people.
Senior Member
Posts like a Northstar
Joined: Mar 2010
Posts: 596
Likes: 2
From: Neligh, Nebraska
Welcome to the site! It would be sweet if you got some pics of the car in too. We love pictures here lol...Good luck with the fix, I am sure you'll be fine with these guys on here to help you.