When auto gearbox gets warm, it only engages 1st gear and does not want to Move in any other gear.

Tiny
TOERIEN
  • 1997 FORD RANCHERO
  • 244,000 MILES

When cold operates all gears. As gearbox warms up, it only engages 1st gear so have to drive very slowly, This is a reconditioned gearbox put in at 200,000kms

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Saturday, November 19th, 2011 AT 7:56 AM

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Tiny
DRCRANKNWRENCH
  • EXPERT
  • 3,451 POSTS

The most likely causes for the shifting issue is as follows;

Blown fuse to the PCM controller
Faulty vehicle speed sensor (VSS)
Shorted second gear control solenoid
Faulty transmission controller (PCM)

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Saturday, November 19th, 2011 AT 8:18 AM

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