1994 GMC Suburban Engine cooling Problems
- Complaints
- 9about this part
- Share
- 2%of 411 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 9 complaints about the engine cooling of the 1994 GMC Suburban, 2% of the 411 complaints for this model year.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The engine seems to run too hot lately. I've replaced the thermostat & flushed sys. W/ no improvement. Wipers stopped working w/o reason and washer motor doesn't dispense water properly. Only 1 rear door window defrosts and only partially. I've cleaned contacts w/ no results. Rear drivers side window power doesn't work. Used to work off and on, because of irregularity window it's left up at all times.”
NHTSA complaint #726082, filed 2000-07“Consumer was traveling 55mph on and vehicle started overheating without prior warning. Temperature gauge was still in normal stage, and vehicle just shut off. A tow driver was called out to jump start vehicle, and for first thirty minutes it was okay. Then, temperature gauges went up, and vehicle had to be towed to a shop. Mechanic told consumer that crankshaft broke.”
NHTSA complaint #867460, filed 2000-08“While traveling vehicle cut off without prior warning, causing loss of power steering and power brakes, and making it very difficult to steer the vehicle. Consumer has contacted dealer. However, dealer unable to determine the cause of the problem. Please provide any further details.”
NHTSA complaint #846531, filed 1999-09“When putting on brakes the brake pedal goes down to the floor and hears a grinding noise, and the the truck will eventually stop. Rear air conditioner control knobs will not stay attached to the control, dealer replaced the knob air conditioner does not blow cold at an idle. Both front axle seals were leaking out fluid from the left front axle, dealer replaced both seals and right axle. Oil pressure gauge dips down into the red at an idle. Temperature gauges reads hot.”
NHTSA complaint #817805, filed 1997-10Related service bulletins
- 10246631Sep 1, 2013Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2003 | 1 | 20% |
| 2000 | 2 | 13% |
| 1999 | 23 | 8% |
| 1998 | 5 | 5% |
| 1997 | 20 | 10% |
| 1996 | 8 | 5% |
| 1995 | 7 | 3% |
| 1994 | 9 | 2% |
| 1993 | 6 | 3% |
| 1992 | 2 | 3% |
| 1991 | 1 | 3% |
| 1989 | 2 | 12% |
| 1988 | 1 | 13% |
Other parts of the 1994 GMC Suburban
276 complaintsVisibility (wipers, defrost, mirrors)
72 complaintsTires
17 complaintsSeats
12 complaintsElectrical system
11 complaintsTransmission and drivetrain
10 complaintsSeat belts
9 complaintsFuel system
7 complaintsVehicle speed control
6 complaintsOther or unknown
4 complaintsSuspension
4 complaintsWheels
4 complaints
← All problems reported for the 1994 GMC Suburban
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology