Question about GMC Sierra
SOURCE: 1990 GMC Sierra 4x4 1500
the connections near the front axle that activate the motor to engage the system aren't melted? That's a comon problem for that body style. If there good, sounds like it could be that motor itself. To figure out if it's you motor or transfercase, jack up the rear end, have a friend inside shift into 4 wheel drive, or try to, and put it in gear and apply some gas. If the front driveshaft is turning then it's something with the front end. If not, farther back in the system.
Posted on Sep 22, 2008
It seems to be stuck in 4x4 still. There could be damaged done to the powertrain by the towing company. Therefore they should be held accountable for the damage and repair that will be needed. You never tow a vehicle in 4x4 it should be carried on a flat-back. Same with AWD vehicles. The towing companies are well aware of this, is their business to know. Make sure to disengage the 4x4, put the 4x4 shifter on the floor in neutral while in park or not moving. If you continue to have problems contact the towing company and hold them accountable for it. See what you can work out with them. If they tell you they are not responsible then contact a lawyer and make them responsible for it.
Posted on May 19, 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
Take the front axle actuator out of the axle. Plug it back in and have some one push the 4x4 button. The actuator should move, it's a liniar motor. If it doesn't then the actuator is bad or there is a wiring problem. If it does there is a problem in your front diff or some where else in the system.
I'd take a guess and say it's the front actuator.
Posted on Oct 11, 2009
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