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1994 Chevy Cheyenne Intermittant Speed Sensor Failure

Tiny
CYCOMPS
  • MEMBER
  • 1994 CHEVROLET CHEYENNE
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 208,000 MILES
When I' haveto stop at a stop sign or traffic light and then start moving again, the speedometer stays on 0mph and the truck transmission won't shift. Suddenly the speedometer will jump up to 20mph and the transmission shifts violently hard. Is this the vehicle speed sensor or the vehicle speed sensor buffer that might be failing, and why would it only do it intermittantly? Please advise. Thanks!
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Monday, August 10th, 2009 AT 8:51 PM

1 Reply

Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Hi
Try reading codes , see diagram, Jumper terminal A & B paper clip works. turn key on no start MIL will flash.Like Flash Flash pause Flash is 21.
Post will advise
Thanks for donate


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Wednesday, August 12th, 2009 AT 8:49 AM

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