1994 GMC Suburban 2500 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1994 GMC Suburban 2500

1994 GMC Suburban 2500 Problems

Valve Cover Gaskets May Leak Oil

A burning smell may develop due to an oil leak form one or both valve cover gaskets. Resealing the valve cover will generally correct this concern. However, the valve covers should be inspected and replaced if damaged.

Transmission fluid leaking, erratic shifting

On the 4L80-E Transmission (Diesel and 7.4L gas engine), Transmission fluid may leak through the electrical connector on the side of the transmission, damaging the wire harness and causing the transmission to shift erratically. Our technicians tell us there are updated shift solenoids, an internal  transmission harness, and a connector pigtail available to correct this fault.

Quick-Connect Fittings For Heater Hoses May Leak Engine Coolant

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.

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1994 GMC Suburban 2500 Questions

Unable to see dash gauges in daylight in my Suburban. (1 answer)

Does anyone know whether or not the dashboard is illuminated during daylight hours. In certain lights, such as driving into the bright sky it is very difficult to read the speedometer. The dash lights up at night OK but is still dimmer than I would like even with the dimmer switch on full. No fus...

My starter has three wires, how do I hook it up. (1 answer)

Have changed the starter and fly wheel. Think I have starter hooked up wrong. It has three wires. Also, when hook up batteries to try to start, batteries spark and Glow plug stays on all time. Think I might have starter connected wrong

How do you remove the brake rotors? (1 answer)

My husband it changing the brake pads and rotor on the front and needs to know how to get the rotors off.

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1994 GMC Suburban 2500 Recalls

Recall 03V159000
ON CERTAIN MINIVANS, PICKUP TRUCKS, AND SPORT UTILITY VEHICLES WITH CERTAIN MODEL-ENGINE COMBINATIONS, THE WINDSHIELD WIPER MOTOR MAY FAIL DUE TO CRACKED SOLDER JOINTS ON THE CONTROLLER CIRCUIT BOARD. THE WINDSHIELD WIPERS COULD WORK INTERMITTENTLY OR NOT AT ALL.
Recall 01I006000
THIS IS NOT A SAFETY RECALL IN ACCORDANCE WITH THE SAFETY ACT. HOWEVER, IT IS DEEMED A SAFETY IMPROVEMENT CAMPAIGN BY THE AGENCY. VEHICLE DESCRIPTION: 1992-1994 CHEVROLET AND GMC SUBURBANS EQUIPPED WITH VACUUM POWER-BRAKE ASSIST AND EBC4 ANTI-LOCK BRAKE (ABS) MODULES. THESE VEHICLES EXHIBIT ...
Recall 99V025000
VEHICLE DESCRIPTION: PICKUP TRUCKS, CREW CABS, UTILITY TRUCKS AND SPORT UTILITY VEHICLES. THESE VEHICLES WERE BUILT WITH THE POLARITY OF THE WIRING FOR THE ZERO ADJUST BRAKE SWITCH REVERSED FROM WHAT WAS SPECIFIED ON THE SWITCH DRAWING. WITH THE REVERSED POLARITY, THE CONTACTS IN THE BRAKE SWI...

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