1991 Dodge D250 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1991 Dodge D250

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1991 Dodge D250 Problems

Air Conditioning Not Cold

The powertrain control module (PCM) may fail resulting in a lack of AC cooling. The lack of cooling could be caused by evaporator freeze-up due to the AC compressor staying on continuously or conversely, not coming on at all. Proper diagnoses of the PCM should be performed before replacing it for this concern.

Fuel leak from injector

Engines using a throttle body fuel injection system may develop a fuel leak from the fuel injector nozzle or the injector o-ring seal can cause any of the following: Hard starting, rough idle, black exhaust smoke, and poor fuel mileage.

Diesel engine hard starting issues

Diesel engines may develop a hard start or no start condition due to any one of  the following issues: Low fuel pressure, air entering the fuel system, and loss of fuel system prime. Our technicians tell us that the rubber inlet hose at the back of the injection pump and the lift pump are common causes for these concerns. Lack of fuel to the injection pump can damage the pump due to lack of lubrication, when this occurs it is not uncommon to replace the lift pump, injection pump, and fuel injectors.

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1991 Dodge D250 Reviews

this has been a great truck, ihave a small hose that is broke coming off my air pump cant find other end of hose or a place for it too go, i have had a check engine light since this has happened and have gas fouled my plugs its running too rich does any one know where this hose goes its a small hose coming off a plastic nipple facing the firewall 5.9 v-8 1991 ram d-250
I bought this truck used with many miles on it. The engine had been rebuilt. So far its been a very good reliable truck. Hauled many things and even a medium sized pop up trailer with no problems. Interior is not in the best shape and appears to have been built shoddy to begin with. Exterior all the paint was peeling bad and looks like that might also been a factory issue.

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