Any other GXP owners with leaks?? - Page 3 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Bonneville GXP/ Northstar Powered Cars Discuss your Bonneville GXP and/or any other Northstar powered Olds or Cadillac... Including the 3.5L Twin Cam V6 (Short Star ) 4.0L and 4.6L Northstar V8's. Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 03-17-2008, 09:35 PM   #21
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Actually, I just had it in the shop for the steering shaft (again) and did a good inspection of the under belly while it was there. Nothing visible but you've got me thinking. I may put it on the lift again this weekend and take a better look.
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Old 08-26-2008, 10:45 PM   #22
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Default Water in the cabin

As TS Fay just moved through the area I had gone out to run an errand in the Bonneville when I noticed that the drivers side floor boards both front and back had about a half inch of water. Very nice indeed. Took it to the shop they promise that is the sunroof drains. Should have it back tomorrow. Another Hurricane enroute should be able to validate their repair I should guess.
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Old 09-29-2008, 10:45 PM   #23
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hey man i just bought a gxp that looks just like yours. are there anything performance mods you can get?
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Old 09-29-2008, 10:49 PM   #24
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The PCM for the GXP is locked and non flashable / unable to be altered. Other than gutting the forward airbox that may give you a little better breathing there isnt any mods you can do. I nitrous injected mine due to this.
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