Where should I look for a short?

193,000 MILES
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HWCOUL
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My 94 Dodge GC w3.8 engine goes into limp mode every once in a while. I have replaced both speed sensors. It acts like a electrical short somewhere.
Sep 18, 2011 at 11:06 PM
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CARADIODOC
  • ✓Experienced Mechanic
  • 34,397 POSTS
The place to start is by having the stored diagnostic fault code(s) read. The dealer and most transmission specialty shops have scanners that can access the Transmission Computer. Typically, if there's a problem with a sensor, the system will go to limp mode as soon as you shift into drive or start to move. If it goes to limp mode during or right after an up-shift, clutch pack slippage is more likely the cause. The Chrysler DRB3 scanner can also read out the clutch volume index, (CVI). That's a set of four numbers that correspond to the volume of fluid it takes to apply each clutch pack. An experienced transmission specialist can tell how much life is left in each clutch by those numbers.
Sep 19, 2011 at 1:09 AM
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