1996 GMC 3500 Pickup Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1996 GMC 3500 Pickup

1996 GMC 3500 Pickup Problems

Check Engine Light With Code P1870

Vehicles equipped whit a 4 speed automatic transmission may develop a harsh 1-2 shift and/or illumination of the Check Engine Light with code P1870 stored. This can be caused by wear of the bore for the TCC isolator and regulator valves in the valve body. This condition does not commonly occur until the transmission reaches normal operating temperature. If the valve body is worn, replacement will be necessary to correct this concern.

Check Engine Light and Misfire Due to Stuck Fuel Injectors

One or more fuel injectors may become stuck closed causing an engine misfire  and the Check Engine Light to illuminate. Our technicians tell us that this problem can be caused by some fuel additives. There are special procedures which may be able to restore the affected injector. If this fails the affected injector must be replaced.

Alternator May Fail and Cause Noise and Dead Battery

The alternator may fail causing the battery to go dead, or an abnormal noise may develop. The dash warning light may or may not illuminate. A failed alternator will require replacement.

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1996 GMC 3500 Pickup Questions

fuel systems (1 answer)

what would cause the truck to shut off while going down the road and lose prime

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1996 GMC 3500 Pickup Recalls

Reclining Seats Create Pinch Hazard

The easy entry recliner seat operation may allow fingers or hands to get caught and pinched within the recliner mechanism. Dealers will install a protective cover over the recliner mechanism free of charge to resolve the concern.

Rear Axle U-Bolt Nuts Loosen

The nuts for the U-bolts that secure the rear axle to the frame may loosen and detach, causing the axle to shift and disrupt proper control of the vehicle while driving. Dealers will check the U-bolt nut torque and re-torque any loose U-bolts to the proper specification free of charge to resolve the concern.

Fuel Rail Leaks Fuel

The fuel rail may leak, causing an odor and a fire hazard. Dealers will inspect and replace fuel rails found to be in the date range of faulty parts free of charge to resolve the concern.

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