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Axle Tramp?

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Old Jan 18, 2005 | 10:28 PM
  #1  
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Default Axle Tramp?

I have experienced something a couple of times in my 996 - once during a launch in the dry, once in the wet. Both times, it felt like there was a lot of unproductive power going thru the rear wheels - the take offs were fast, but not too hard. During a checkup at the dealer I mentioned it, and he said it sounded like axle tramp, but found no abnormalities.

I have an 03 996 C2 6 speed with PSM, 18" wheels, Michelin PS2 and sports suspension (M030).

Any suggestions/diagnoses? Is this normal? It has happened twice (both recently) in 6,000 miles.

Thanks
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Old Jan 18, 2005 | 11:09 PM
  #2  
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"... unproductive power going thru the rear wheels"??? What do you mean? slipping? are your tires worn out?
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Old Jan 18, 2005 | 11:36 PM
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Do you mean wheel hop???
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Old Jan 18, 2005 | 11:39 PM
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Wheel hop! That sounds like it. Tires are fine - 6,000 miles and plenty of tread.

It felt like the back was jumping up & down a bit, and the rate of acceleration did not match the amount of throttle....

As I said, the car was checked and the dealer found no anomalies.
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Old Jan 19, 2005 | 12:21 AM
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Yea that is 100% wheel hop, it happens in my 04 c2 alot, it when the car is hooking and spinning at the same time, causing the car to hop, this is not a good thing for any car, it is a normal thing, just not great for the car, i avoid it by more throttle of the line or less. No worries alot of cars do this..
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Old Jan 19, 2005 | 12:24 AM
  #6  
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What do you mean by hooking & spinning?

I always think of Bullitt when I think of wheel hop
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Old Jan 19, 2005 | 09:19 AM
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I test drove several dealer demonstrators before buying and they all had serious wheel hop on hard acceleration with traction off. It was most noticeable on wet roads.
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Old Jan 19, 2005 | 09:24 AM
  #8  
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But should it be happening with PSM on?
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Old Jan 19, 2005 | 10:25 AM
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As soon as we have ANY traction on the roads up here I'll let you know.
Bob
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