Thud under feet/pedals when accelerating hard and going up hill in gear 2/3.

Asked by Scott Jul 22, 2020 at 08:13 PM about the 2014 Porsche Cayenne GTS AWD

Question type: Maintenance & Repair

I hear and feel a thud under feet/pedals when accelerating hard and if going up
hill in gear 2/3 under 2000 RPM.  It is like the car is missing a beat a couple of
times.  Stops if i take my foot of hard acceleration.
Told dealer at recent service, they said all is good.  But it isn't.  Any thoughts?

6 Answers

1,755

It sounds like either have a bad motor or transmission mount. Just looking at them you can't tell if they are bad or not.

2 people found this helpful.

Thanks Peter. It's just been in for a service, and dealer mechanic couldn't find a problem. Would they normally check that? Thanks.

1,755

No not for a service, they usually just change the oil and whatever shows up on the maintenance schedule. Have a tech go with u and show them what it does. Since it's a manual u can't hold the brake and put it in reverse or drive and press the accelerator to see if the engine raises up. But I'd say u have a bad mount somewhere.

1 people found this helpful.

Hey Scott - did you find the problem? I have a 2012 Turbo with same issue and on diagnostics, quick inspection or at high speeds no problem can be detected? Mitch

10

Could be a transfer box problem. I had this on a 2014 S Diesel but fortunately a warranty sorted this out (very expensive) Symptoms sound the same.

1 people found this helpful.

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