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Old 02-07-2006, 03:57 PM
oab_au oab_au is offline
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Join Date: Mar 2001
Location: Coffs Harb, Australia.
Posts: 5,032
Significant Technical Input Registered SVX
Speed sensors.

The speed sensor in the front diff drives the speedo, it also tells the TCU the speed for the gear changes. When they give trouble the TCU uses the other speed sensor, to do the changes, but not to the same degree, so it changes differently. If it is electrical it should post a code. If it is mechanically it won't. You need to pull the sensor out of the diff case to see what has gone on.

Harvey.
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