2003 Ford Ranger Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2003 Ford Ranger

The engine may misfire and/or buck while driving at freeway speeds with no fault code stored in the powertrain control module (PCM). This can be caused by an intermittent fault with the camshaft synchronizer assembly. This condition can be diagnosed by monitoring knock sensor data as per Ford service bulletin #05-22-12. Replacement of the synchronizer assembly will be required to correct this concern.

The synchronizer shaft for the camshaft position sensor can cause a loud squeak or chirping noise due to failure of the upper bushing. The noise may be erratic and is usually present when the engine is warm.

If you experience cold starting problems, stalling at idle, or hesitations during acceleration, it may be the idle air bypass valve. This valve helps the vehicle idle steadily and run when the accelerator pedal is not pressed.

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howdo i
trouble shoot or repair a transmission code p0734 for a ford

Charges $523.00 and still have same problem, vehicle breaks apart when trying to accelerate after changing gears.

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For 3.0 engines replace the camshaft position sensor [Part Number: 6B288 (DU-81)] and camshaft camshaft synchronizer [Part Number: DA-2089] every 75K to 90K. This is basic preventative maintenance since these parts are known to go out at that range. If you neglect to do so it will destroy the engine when it fails.

This truck has had a transmission leak at 22,000 miles and an oil leak now at 53,000 miles. The brakes are terrible especially the rear. They tend to lock up when cold and wet. I have the 3.0 6 cly and the gas milage is awful. This will be my first and last Ford truck.

Great Truck! I even fixed some things the wrong way and the truck runs like a champ. Easy to work on, cheap parts! Great economical Truck with good reliability.

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