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1999 Chevy Suburban

Tiny
KENJUDD
  • MEMBER
  • 1999 CHEVROLET SUBURBAN
  • V8
  • 4WD
  • AUTOMATIC
  • 118,500 MILES
Having trouble with no power on occasion mostly when just after starting. I accelerate and it almost feels like its not advancing. I can floor it and it speeds up slowly. Other times it accelerates great, the power it should have. Also have other problem with shifting on trans. Under acceleration it shifts very slowly into next gear. Light acceleration shifts normally. Please help
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Tuesday, September 28th, 2010 AT 6:41 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
You sure the transmission is not slipping? If not-check the fuel pressure, exhaust for restriction, and test the throttle position and manifold absolute pressure sensors-also clean out the EGR valve
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Tuesday, September 28th, 2010 AT 7:01 PM

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