Main IndexAuto Repair Home Search Posts SEARCH
Who's Online WHO'S
Log in LOG

1992 Chevy pickup, 4WD troubles

car parts image

  Email This Post

New User

Nov 8, 2006, 1:57 PM

Post #1 of 2 (5355 views)
1992 Chevy pickup, 4WD troubles Sign In

I have a 1992 Chevrolet 1500 pickup. It has an automatic transmission. Everytime I put it into 4WD, the 4x4 fuse blows. The transfer case seems to be shifting just fine, but the fuse blows and the front wheels will not lock. I had heard this is a common problem, but am not sure if it is a short, or a solenoid, or a combination of both. I am also not sure where to locate the solenoid to check the problem. Any suggestions would be appreciated.

Veteran / Moderator
DanD profile image

Nov 9, 2006, 5:19 AM

Post #2 of 2 (5340 views)
Re: 1992 Chevy pickup, 4WD troubles Sign In

Here’s an exploded view of the front differential; showing the actuator solenoid that locks the axles.

You could try unplugging this solenoid and then putting the truck into 4-wheel drive. If the fuse holds then it’s likely the solenoid that is at fault, if the fuse still blows follow the circuit back to the transfer case switch and so on.
Here’s a partial-wiring diagram showing the remaining relays and switches that make up this circuit.

Canadian "EH"

(This post was edited by DanD on Nov 9, 2006, 5:23 AM)

  Email This Post

Feed Button

Search for (options) Privacy Sitemap

site analytics