If you hear a "Click" should be from behind the dash, that means that the shift lever is engaging the ball switch in the trans case and activating the ADD relay. Which will in turn activate the VSS switches under the hood on the pass side. The light coming on the dash should only happen when the locking sleeve has moved over on the front axle putting the truck in 4x4, To me that would show that the add system is working correctly. If you can turn the front drive shaft with the truck in 4x4 and still on the ground my guess is you have issues with the Tcase internals.
Here is a great write up on the different systems used by Toyota found on the Offroad.com fourm. Also explains how to trouble shoot the add system. Found very helpful when geting mine fixed. Turned out to be a broken wire going from the tcase switch to the add relay behind the dash. Good luck!
http://www.off-road.com/trucks4x4/ar....jsp?id=399612
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Quote:
Originally Posted by thook
Ooooo....don't say that. Next thing you know somebody's truck'll blow up following my advice....:nerd:
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It takes hundreds of nuts to hold a car together, but it takes only one of them to scatter it all over the highway.
- Evan Esar American Humorist (1899 - 1995).
1991 Toyota Pickup EXT> RIP... ROD Knock/Rustie's.
1992 Eagle Talon 5Speed> Sold...
1993 Toyota Pickup EXT 22RE 5speed> Current Beast