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Resources for the Repair and Maintenance of your 1990 GMC 3500 Pickup

1990 GMC 3500 Pickup

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1990 GMC 3500 Pickup Problems

Miscellaneous -- Verified

The inside and outside door handles are prone to breaking.

Brakes -- Verified

Power brake systems using "hydro-boost" may leak power steering fluid from the hydro-boost unit located behind the brake master cylinder. Replacement of the hydro-boost unit is the common repair to correct this concern.

Miscellaneous -- Verified

The power door lock actuators may become slow to operate or stop working completely and require replacement.

Engine -- Verified

The intake manifold gasket may develop and external engine oil or coolant leak. In some cases, an internal coolant leak may occur causing coolant to mix with the engine oil. Running the engine with a coolant/oil mix may result in engine damage. Replacing the intake manifold gasket should correct this issue.

Electrical & Lights -- Verified

The windshield wipers may not work intermittently due to a faulty wiper motor control board. Our technicians tell us that lightly taping on the wiper motor when the fault occurs should temporarily get the wipers working again. Some vehicles were recalled for this problem and some were not. You will need to check with your local dealer to find out if a specific vehicle was included.

1990 GMC 3500 Pickup Questions and Answers

Jake_2, 1990 GMC 3500 Pickup, Gasoline, Centerville, IN

electrical problem w/ brake lights not working, replaced all fuses and bulbs. when head lights are there is no brake lights. when turn signal is on then both signals flash abck and forth.. i can no...

Visitor, 1990 GMC 3500 Pickup, 7.4L V8, Millville, NJ

what transmission came stock in a 1990 gmc dually 4x4

Scotts automotive, 1990 GMC 3500 Pickup, 7.4L V8, Waukesha, WI

I was brought this truck to my shop to fix cause the bell housing was cracked pulled the trans and put a new bell housing in but now every gear works but reverse it has the 4 speed manual any sugge...

Visitor, 1990 GMC 3500 Pickup, 7.4L V8, Gold Beach, OR

the tilt wheel system seems very loose,is there any way to tighten it.

drkonrad, 1990 GMC 3500 Pickup, 5.7L V8, Eugene, OR

keeps blowing the computer fuse without the key on and no feul to the engine. Will start if dump gas down the carb 1988 vandura 3500

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