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1999 Chevy Silverado Transmission not shifting into overdri

Tiny
STEVE HAMMONDS
  • MEMBER
  • 1999 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 12,800 MILES
Transmissioon will not shift into overdrive. Started abruptly, fine one day, next day will not shift into overdrive. Fluid is ok. Fluid does not have burned smell and is not dark in color. Fluid level is good.
Any ideas?
Friday, October 8th, 2010 AT 9:57 AM

3 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
It could be a few things. Has the check engine light or any warning lights come on?
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Friday, October 8th, 2010 AT 11:33 PM
Tiny
STEVE HAMMONDS
  • MEMBER
  • 1 POST
The check engine light is on but according to the code, it is not for the transmisssion. It is for the canister at the fuel tank. This is according to the counter person at the Auto Parts store that read the code for me.
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Tuesday, October 12th, 2010 AT 8:48 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Without a code, it becomes a guessing game. It could be the torque converter, but I can't be 100% sure.
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Tuesday, October 12th, 2010 AT 9:06 AM

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