1991 Cummins Diesel Engine
Safety record from NHTSA: recalls, owner complaints, investigations and service bulletins.
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Vehicles › Cummins › Diesel Engine › 1991
These records cover every 1991 Cummins Diesel Engine. To see whether one car still needs a recall repair, decode its VIN or check it with NHTSA.
Recalls
1 recall names the 1991 Cummins Diesel Engine. Newest first.
The failure of a pin in the internal governor linkage results in loss of engine speed control. The throttle control and the governed speed are lost when this pin separates.
Risk and remedy
Risk
Loss of governed speed and throttle control without priornotice can result in a vehicle accident.
Remedy
Replace the fuel pump.
Service bulletins
Technical service bulletins and other communications the manufacturer sent dealers about this vehicle. Ask a dealer for the full document by its number.
- 10233758This Technical Service Bulletin describes the verification and resolution of active fault codes FC 3232 and FC 2771. This is an update to the previously submitted communication.
- 10145444This Account Team Coverage is being issued to address performance concerns on certain R2.8 Crate engines. This document authorizes repair locations to re-calibrate the engine control module (ECM).
- 10144404This Technical Service Bulleting describes the verification and resolution of heavy carbon deposit/sludge build up causing damage to the engine block. Engine failure most likely due to light load operation for an extended period of time.
- 10056792Cummins: belts are coming off drive pulleys of high fan centers and being shredding which can be compounded if units have front engine power takeoff (fepto) and installing an idler pulley between fan clutch pulley and crankshaft pulley, will reduce belt vibration. Updated 8/14/15.
- 10055082Thomas bus: information provided regarding the updating and installation of the bus vin, properly, in ecu cummins engines. Model saf-t-liner hdx, efx.
- 10025863Cummins: orion voltage regulator campaign. Addressing a fuel lift pump voltage regulator issue. Authorizes repair shop to remove cummins voltage regulator from wiring harness and install separate 12-vdc power source for orion bus applications with isb cm850 engines and 24-vdc elelctrical systems.