1998 GTP Problems with supercharger I believe

**Stinger357** · 03-08-2012

Sometimes but not all the time when I give ita heavy foot it will boost for a while then it will just slow down to a crawl like 10 miles every 7 seconds. If I let up on the gas and repunch it it works fine, like I said this happens occasionally. Any idea what might be causing this? Is my supercharger going out or is there an engine problem? It kinda scares me when crossing an intersection and gun it and then it crawls I might get hit. If I let up on the gas and reapply it it kicks in fine the boost shows up and all. Any ideas what to look for?

Thanks,
Ace

**dsmuts** · 03-08-2012

any codes? Superchargers don't just go bad.

**Fivefingerdeathpunch** · 03-08-2012

Any mods?

Any codes?

Plugged exhaust, as in cat converter maybe?

More details are needed.

**Stinger357** · 03-09-2012

No codes are thrown....no mods pure stock. I havnt checked the exhaust. ALso on the way home tonight I get a warning tone going beep beep beep and no lights on and i have 60 miles to the tank in gas. Any idea what might cause the beep beep beep to go on only when I am driving. All doors are secured, I turned the radio off and the air and still have the same beeeping. Any ideas on that one? And of course the dreaded ABS and TCS light is on since I bought it.

**BillBoost37** · 03-09-2012

This is the second post today where it was posted "I'm low on fuel, my is my car telling me about it?" Thanks for the laugh...

On the power issue. I'd say either KR or clogging cat.

**Stinger357** · 03-12-2012

could the power problem when getting on the pedal from a stop be caused by using 87 octane? I need to use 91 I guess maybe it will go away!

**CrazyGuy03** · 03-12-2012

stock tune = boost timer? you can run the car hard but after a while of wot, 7-10 seconds, the solenoid bleeds off boost.

**BillBoost37** · 03-12-2012

Unless you've already popped a piston from predetonation.

Originally Posted by Stinger357

could the power problem when getting on the pedal from a stop be caused by using 87 octane? I need to use 91 I guess maybe it will go away!

**blueguy** · 03-12-2012

My bet is lost compression and the "needs new rotating assembly" mod.

Check your spark plugs, bet they are gone.

**txslow6** · 03-12-2012

Surprised no one has asked if the car loses boost while driving. Could be the boost bypass valve beginning to go out.

As far as the TCS light and ABS on its not uncommon for that to happen when I wheel hub is either out or on its way out. Be listening for a whirling sound

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