Mechanics

SPEEDOMETER QUITS WHILE DRIVING

GMC Jimmy

1996 jimmy slt, 4.3 vortec.290 000 km.
the speedometer quits while driven and I get no power or speed, however the rpm gauge works fine. If I let it sit for like an hour, the truck will work fine but it happens all over again. Ive been told the speed sensor, transfer case, tranny, the pcm. Help. Where do I start
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Rock72
April 29, 2007.



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