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1996 Chevy Tahoe high frequency vibration in accelarator pe

Tiny
HALLJIM
  • MEMBER
  • 1996 CHEVROLET TAHOE
  • V8
  • 2WD
  • AUTOMATIC
  • 187,000 MILES
I get a high frequency vibration in accelarator pedal
when I first take off at about 1200 rpm and also
while driving about 35 to 40 mph

what might be causing this
Wednesday, May 21st, 2008 AT 1:30 PM

1 Reply

Tiny
PEAR69
  • MECHANIC
  • 1,482 POSTS
How many hertz is the frequency?
Just kidding, It sounds like a universal joint problem or a differential pinion bearing problem. 187000 miles --- probably both. Check the brake rotors for warpage also, but I doubt this is the problem. A warped brake rotor will act like this all the time.
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Saturday, May 24th, 2008 AT 2:26 AM

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