The power door lock actuators may become slow to operate or stop working completely and require replacement.
Resources for the Repair and Maintenance of your 1999 GMC Suburban 2500
1999 GMC Suburban 2500
1999 GMC Suburban 2500 Problems
The inside and outside door handles are prone to breaking.
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.
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 quick-connect fittings for the heater hoses tend to leak engine coolant. This problem commonly occurs because the metal housing has become brittle, which can break and cause leaks.
1999 GMC Suburban 2500 Recalls (Recent)
1999 GMC Suburban 2500 Questions and Answers
Dual Air, Front air not blowing cold
How do we replace a seat belt in the back seat? It is a shoulder seat belt.
My 99 Suburban with a 454 drove fine until I tried to pull my 6500 pound camper. Engin light came on and had no power. Now it can still drive OK as long as I'm not pulling anything. Codekey ...
My ABS light has been on awhile, and now there is a repetitive grinding sound. I was told this would eventually happen. Can this be fixed without reinstating the anti lock brakes?