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Recent content by kamposs

  1. K

    New Tire Recommendations (GTP)

    Car: 1999 Grand Prix GTP Wheel Size: 225/60-16 Purpose: All-season (performance?) - Daily Driver Location: Massachusetts I have been looking online for tires all day, but post posts are really old and the tires recommended no longer exist, or the rims are aftermarket and do not make the size I...
  2. K

    Car running funny

    I will try and make this as short as possible... I have a 99 GTP. I bought the car with 60k on it. The acceleration was boggy since the day I got it. I replaced spark plugs and wires, fuel filter, cleaned the throttle body, and put multiple cans of fuel injector cleaner through the gas. The...
  3. K

    New MAF Sensor - Problem

    So my car (1999 Grand Prix GTP) bogs a little when I just start accelerating. I cleaned the MAF sensor, and it did not make a difference. I ordered a new one and put it in and it is actually worse now. It is the same bog as before, but now when I am on highway or cruising >30mph at 1500 RPMs -...
  4. K

    Another A/C Heat Problem

    I have a 99 Grand Prix GTP with climate control. It had the problem where the water was dripping onto the passenger floor through the blower motor. The drain plug in the engine bay was clogged and when it rained it just dripped into the cab. And the rain diverter at the top of the hood, just...
  5. K

    Valve Cover Gasket - grand prix

    Can someone clarify how to remove the valve cover itself on a 99 grand prix? I found a video for a buick, and they are saying to remove engine mount brackets, but it doesn't look like they are in the way on the grand prix. I also found some posts for other 3800s but not any grand prixs. It...
  6. K

    Fuse questions

    I had to replace a fuse today, and I was checking my fuses inside the car and noticed there was some missing. It is a 99 Grand Prix GTP. I was missing: Cig Ltr, Hvac Ctrl, and Radio Amp. Can someone tell me what fuse sizes these are and what they control, aside from the Cigarette Lighter. I...
  7. K

    Drain Help

    I have a 99 grand prix gtp... I keep getting water in my passenger side behind the glove box. It has gotta be a leak somewhere. I took it all apart, and i am not sure where the drain is, i took a picture of it and need help. The car was sitting for seven months, and there is debri everywhere...
  8. K

    Dripping in two places, A/C?

    so lately my car has been dripping on the passenger side under the engine, a little bit further back than the oil filter. i can't see exactly where it is coming from. I thought it was my A/C and didn't think anything of it. Well, lately i haven't been using my A/C and it is still dripping...
  9. K

    Aeroforce Gauge Mounting Help

    Could use some help with mounting my gauge. I just took out my ash tray which was a pain in the butt. The two screws underneath...wow they were tough to get at. Anyways, I have a 99 Grand Prix GTP. I want to mount my gauge there but have no idea how to. Has anyone done it? Do I need to make my...
  10. K

    Aeroforce Interceptor - Important items

    Hi all, I just got this thing and have been playing around with it. My car has been running a little funky so I was checking out some of the different options but the basic stuff seems normal. I think my injectors may be clogged or something, is their away to check fuel pressure and what not...
  11. K

    OBDII Scanner vs. Aeroforce

    Hi all, quick question.. I am looking to put a 3.5 pulley in soon, but my car seems to be running a little funky. I had an 08 Impala SS (V8-308hp) and switched to a 99 GTP (V6-240hp) so I do not know if it is just my mind playing tricks on me or if something needs to be fixed. I would like to...
  12. K

    GTP Tuner/Scanner/PCM?

    Hi all, been reading forums and am probably more confused then I started. I thought you could get a tuner, that gave you the capability to also scan, but it doesn't look like that is true.. Right now my car is mostly stock, I am trying to get it set up to run a 3.5 pulley, but it still isn't...
  13. K

    Climate sensor?

    Hi all. Been working on my new 99gtp. I recently noticed where te a/c unit is, it says 43 ext. and ididnt know why at first but i think it is the exterior temperature. Idk why it says 40-50s because it is in the 90s lately. I found an article that said the sensor is under the bumper. It said...
  14. K

    99 GTP wont start, need help.

    Hi all. I have a 1999 Grand Prix GTP. Recently bought the car, decided to change some stuff. Put it back together, now it wont start or turn on for that matter lol Heres what I changed: -Supercharge Coupler / Oil (Took off Coolant and Alternator) -Spark Plugs / Spark Plug Wires When I took...
  15. K

    1999 GTP Oil Change

    Hi, quick question... I have a 1999 with 61k on it. The previous owner did not use synthetic oil. Is it too late to switch over? If I can, is Mobile1 Extended Performance 10w30 safe to use? Thanks
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