Question about 1998 GMC Sierra
I think I need to replace the transfer case control module but having difficulty in locating it.
It is located under the passenger side kick panel. Remove the plastic kick panel cover to reveal the TCCM.
Posted on Nov 02, 2012
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Posted on Jan 02, 2017
The Z71 typically comes with the auto 4wd transfer case (cannot remember the GM number). This requires AutoTrak II, which is available at a GM dealer. Do not use any other fluid in this transfer case! The previous post was correct in the location of the two plugs, but not on the fluid (the other types of transfer cases by GM use ATF). The transfer case is located under the truck right under the cab. There is a small skid plate under it, and a large driveshaft leaves the rear end of the case heading to the rear differential (axle). If you have the manual or electronic w/o auto 4WD transfer case, you can use Dexron III, but Dexron VI is a better fluid that is also now available at your local auto parts store. Again, if you have the AUTO 4WD button in the dash, use the AutoTrak II fluid from the dealer.
Posted on May 22, 2009
Typically the Neutral Safety Switches are located with the gear selector, either in the column or the floor.
Hope this helps,
Posted on Aug 21, 2009
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