2004 Ford F-250 Super Duty Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2004 Ford F-250 Super Duty
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2004 Ford F-250 Super Duty ProblemsBlower Motor Only Works on High
The 2004-2010 Ford F-250 with manual temperature and fan controls may have problems with the the blower motor only blowing air on certain settings. Most commonly the fan will only run on the highest setting. This is a well documented problem, and is caused by a failing blower motor resistor.
Correcting the problem is straight forward, and requires replacement of the small resistor. The resistor is normally found behind the glove box, next to the blower motor.
There is a technical service bulletin for the V8 engines regarding a possible problem with the spark plug being ejected from the cylinder head, damaging the threads in the spark plug hole. If the vehicle is under warranty, cylinder head replacement is recommended. If the vehicle is out of warranty, Ford authorized the use of a specific thread insert to repair the head.
A coolant leak from the radiator can be caused by a defective thermostat bypass. This can cause pressure spikes in the cooling system, which leads to radiator failure. The thermostat assembly and radiator should be replaced.
2004 Ford F-250 Super Duty QuestionsMy 04 f250 started blowing blue&white smoke out of tail pipe aND runnING bad (1 answer)
It acts like only running on 2 out of 8 cyclenders and I didn't even try to restart it been having problems starting before
It happens everytime i drive the truck and it heats up. The only way to stop it is to loosen the cap and leave it lise
Changed oil and filter, started engine and there is no oil pressure registered on the guage