1999 GMC 3500 Pickup Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1999 GMC 3500 Pickup

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.

The inside and outside door handles are prone to breaking.

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

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There is good fuel pressure. is there a fuse that can cause it not to start?

The comp is not throwing any codes, and I've replaced the plugs, wires, distributor, the electronic ignition switch, o2 sensor, crank sensor, cam sensor, fuel filter, air filter, and checked the fuel pump. I'm out of ideas, and can find nothing online and the shop couldn't figure it o...

blown 454 engine being removed. putting in a 350 tbi . what equipment should be transferred to make this work? engine & computer ? just have to figure out how to wire computer for the 350 tbi into the truck right?

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This year paint was not GMC's best. I have had problems with the paint peeling off in strips.Overall strong truck 7.4 454 big block. I tow a 30' toyhauler and this truck can pull.

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