1990 GMC 1500 Pickup Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1990 GMC 1500 Pickup

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1990 GMC 1500 Pickup Problems

Driveability Problems Due to Internal Distributor Fault

The distributor may develop internal faults. This can cause a rough running engine or stalling condition, the Check Engine Light may or may not illuminate. Our technicians tell us that the distributor should be overhauled or replaced to correct this concern.

Front/Rear Differential May Develop Noise Due to Worn Bearings

The front or rear differential may develop an abnormal noise due to worn bearings or another internal fault. Our technicians tell us that a complete overhaul of the affected differential is commonly necessary to correct this condition.

The Fuel Pump May Fail Causing the Engine to Stall or Crank Over But Not Start

The fuel pump may fail causing the engine to stall and not restart. Our technicians recommend replacing the fuel filter every 30,000 miles to help prevent undue strain on the fuel pump.

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1990 GMC 1500 Pickup Questions

The dashboard lights and rear running lights do not work. All fuses are fine. (1 answer)

What could be the issue?

I can't get power to my fuel pump,relay,mini fuse or sending unit. Anything I'm (1 answer)

350motor,700R4 auto trans,4whldrv, used to be a farm truck.wires torn out all over,replaced fuses but still nothing. Is there more disable links or an inertia switch idkbout somewhere?

How to replace heater core hoses? (1 answer)

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