• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

Recent content by bocoogto

  1. B

    Flushing Coolant System

    Conditions inside my coolant system are horrible. I believe the original Dexcool is still in there. There is slime the consistency of jelly. Today, I decided I'd drain the system, flush it, and put regular anti-freeze in it. Serious problem--I cannot reach the radiator drain cock on the...
  2. B

    GXP Tire Questions

    Has anyone put the same size tires all around on a '08 GXP? The fronts are now 255/45zr18 on factory 8" rims. Why not the same tire on the rear 7" rims? Or, is there a 50 series or 55 series that would give better ride quality?
  3. B

    LS4 Oil Pressure Dilemma

    My 2008 GXP intermittently shows Service Engine light. Code is due to oil pressure sensor malfunction. I put a gauge in place today and saw 40 psi at startup, which dropped to about 15 psi within a few minutes as the engine warmed. A fairly loud lifter tick showed up when the pressure was low...
  4. B

    2008 GXP Grand Prix Transmission Failure

    Yesterday, while driving about 40 mph, when I tried to accelerate, the trans acted like it was in neutral--no drive, no reverse. There was no noise--it acted like I shifted to neutral. Car has 166,000 miles, but I've only had it two years, so don't know the previous history, but suspect the...
  5. B

    Oil Filter Choices

    I've been using the AC PF63e on my 2008 GPX. All the parts store websites say this filter will not fit. What have some of you found? I know the PF48 is recommended, but it's a very short filter.
  6. B

    Intermittent Door Locks

    Nearly always, my doors will lock with the remote fob or the door switches. Sometimes, especially in hot weather, they will not lock. The exterior lights flash, indicating the signal is reaching the BCM, but there is no click and no locking. Unlock works fine with remote and door switches...
  7. B

    Keyless Remote Issue

    The keyless remote on my '08 GXP sometimes works normally and sometimes not. One FOB works better than the other--better range--but even the better one sometimes will not lock the doors. Persistent pressing the lock button will eventually lock the doors--sometimes. When it won't lock, sometimes...
  8. B

    2008 GXP Monsoon Audio Quality

    My GXP has the Monsoon system with single CD player. The system is totally stock factory. Audio quality is lacking in two areas. Most noticeable is that the midrange is not smooth. Listening fatigue sets in after only a short time listening to radio, XM, or CD. The center dash speaker appears to...
  9. B

    Disable Tire Pressure Monitor Alert?

    I use aftermarket wheels on my GXP for winter. They have no sending units for tire pressure. Is there a way to disable the alert so I don't have to reset the readout every time I start the engine? Also, the yellow warning light is always lighted in the cluster with the sending units not...
  10. B

    '08 GXP Trans Shudders When Stopping

    Any ideas of the cause for my trans to shudder when stopping? At about 10 mph with each stop, the car shudders as though the trans isn't shifting down. If I select neutral before stopping, all is smooth. The previous owner put synthetic ATF in it. Fluid is clean, clear, and smells new. I'm...
  11. B

    GXP 18" Wheels

    Would like to buy either 18X7 or 18X8 wheels from a 2005-2008 GXP. I would be interested in two or four wheels. I have the stock chrome wheels on the car that are beginning to show corrosion that I'll use this winter and would like to buy some for summer use. Will also consider 17 or 18"...
  12. B

    Which Wheels will work on my 2008 GXP?

    I'm going to drive the car this winter and don't want to compromise the chrome wheels, nor do I want the super wide 255 tires on snow. Can I use 16 or 17" rims on the GXP? There appears to be about 1 1/2 to 2" of clearance between the 18" rims and the brake components. Any recommendations?
  13. B

    Radio with Theftlock--How to Activate

    I bought a radio/CD player from a '04 GXP today. It is identical to the one in my 2008 GXP that has some display areas dim. The guy at the junkyard said it will work if I don't disconnect the battery when removing my radio. I asked about he one I took from the '04 and he said they "do it right"...
  14. B

    Adding Garage Door Opening Setup

    I found a '04 GXP in a junkyard with the Homelink setup next to the rear view mirror. Will this work with my 2008 GXP that only has the sunroof switch and interior lights in that pod?
  15. B

    Questions on My New 2008 GXP

    We bought this GXP last week. All is great with the car except for some tire noise, which the previous owner alerted us about. The tires are less than 1/2 worn, so we'll have to put up with this for some time. My concern is the ABS/Stability System/Traction Control. The warning light came on...
See more
Back
Top