GT3/GT2 Performance and Track Discussion on the Porsche GT3 and GT2

why is there a thump when i backup?

Old Nov 16, 2007 | 12:02 PM
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why is there a thump when i backup?

is that normal?
 
Old Nov 16, 2007 | 01:07 PM
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Normal when you run over the mother in law...
 
Old Nov 16, 2007 | 04:40 PM
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same here, 2008 Gt3, with a thump on backup, took it to the dealer, they said nothing wrong, but its annoying, to say the least.
 
Old Nov 16, 2007 | 04:54 PM
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neighbor's cat?
 
Old Nov 16, 2007 | 06:42 PM
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nope. it's neither my mil or my neighbor's cat. there's no dead midget in the trunk either.
 
Old Nov 16, 2007 | 06:49 PM
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You must have some electronics in the car using Energizer Batteries...

 
Old Nov 16, 2007 | 08:18 PM
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oh it's only a single thump when backing up. it doesn't keep going and going and ...
 
Old Nov 16, 2007 | 09:38 PM
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don't set your handbrakes too tight when storing for long periods. could be your brake pads releasing after a long tight set.
 
Old Nov 16, 2007 | 10:06 PM
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Mine does the same but more like a boing sound coming from the coilovers. Took it to the dealer and they said its normal and after break in you will hear more noise
 
Old Nov 16, 2007 | 10:34 PM
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Originally Posted by oak
don't set your handbrakes too tight when storing for long periods. could be your brake pads releasing after a long tight set.
I second this. Esp. after washing your car and the rust builds up on the iron rotors and the car's been sitting for a while. You don't even have to have the handbrakes on. The build up will still cause a boink.
 
Old Nov 17, 2007 | 12:11 AM
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something with the reverse gear?
 
Old Nov 17, 2007 | 09:50 AM
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Originally Posted by P97
I second this. Esp. after washing your car and the rust builds up on the iron rotors and the car's been sitting for a while. You don't even have to have the handbrakes on. The build up will still cause a boink.
If it just sits overnight it will do that after a wash. I've never seen the handbrake cause a problem.
 
Old Nov 17, 2007 | 04:30 PM
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yups oak is right... Might be that. If you're in Fremont and you're still worried you can always come by and let Dr. James listen to it.
 
Old Nov 17, 2007 | 09:47 PM
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sharky, thanks! let me know when would be a good day/time to swing by your facility. would also like to hear your muffler bypass system in person. sounds like a great mod!
 
Old Nov 18, 2007 | 06:38 AM
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i hear it i think its the brake ... i hear alot less noises in the 7 as i did with the 6 ...lol
 

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