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1991 GMC 3500 Pickup Repair and Maintenance Costs

A guide to repairs, service, and maintenance costs for your 1991 GMC 3500 Pickup

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1991 GMC 3500 Pickup Problems

Power Brake Units May Leak Fluid From Hydro-Boost Unit

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.

Inside/Outside Door Handles May Break

The inside and outside door handles are prone to breaking.

Power Door Lock Actuators May Fail

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

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1991 GMC 3500 Pickup Reviews

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based on 1 customer reviews
I bought a 91 dually with 31000 original miles it runs better than my 2009 ever thought of .

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