Question about 1992 Chevrolet C1500
With transfer case engaged right wheel spins and the left front wheel spins the other two wheels donot spin was wandering if anybody out there could help me thank you
I believe that is standard for a stock 4X4, If you have true posi 4X4 all 4 wheels will turn at the same time in your case when the 2 spinning wheels spin under load the other 2 kick in
hope that helps you
Posted on Jan 19, 2014
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Posted on Jan 02, 2017
then the seloniod actuator if the front diff may be bad, this is common,heres a diagram to show you what it is and where it is, hope this helps.
Posted on Jan 27, 2010
On the full size, the front actuator is electric, not vacuum.
When in 4wd mode, a switch on top of the transfer case conducts 12 volts out to the actuator. Wire #50 (brown) is the 12v feed, and it conducts to the light blue wire (#900) to the actuator.
When shifted out of 4wd, the switch opens up and no voltage goes to the actuator.
I'll assume it is the actuator, if the plug to the actuator is getting 12 volts when in 4wd.
The way this actuator works, is it is a sealed chamber that gets heated by voltage. When it heats, the pin in the end swells and pushes a shift fork in the front differential. The shift fork engages a spline on the passenger side of the differential, and boom! you have 4WD.
GM offered an upgrade to this actuator that is a motor instead of a heated device. However, it requires a small harness addition, a spacer, and a new actuator. It is about a $150 to $200 option.
Good luck. The actuator is usually the problem 90% of time but recheck all of the wire harness just to maker sure there is no short before replacing any parts. The actuator may not be fully engaged or disengaged and the fork to the spline may be what is causing the whining or grinding noise you hear.
88-UP C/K ACTUATOR UPGRADE
VEHICLE SERVICED: 1994 CHEVROLET FULL SIZE
PURPOSE: IMPROVE AXLE CONNECT ENGAGEMENT TIME AND
SYMPTOMS: NO FRONT DRIVE AXLE ENGAGEMENT WHEN SHIFTED INTO 4X4.
Obtain the following GM part numbers:
(1) 26060073 Actuator
(1) 88959465 Harness/Spacer Kit
Posted on Feb 23, 2010
Testimonial: "Mr. Molson, sorry this Thank You is way overdue, I have checked / replaced the actuator & it does work. Thks. 4 the part #'s too!"
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