2003 Ford Ranger Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2003 Ford Ranger
Verified by mechanics, reported by drivers like you
Ask a mechanic in our community
Never overpay. Check prices with our estimator
2003 Ford Ranger ProblemsHesitation when accelerating
Bogging, hesitation, or stalling may be experienced during moderate to heavy acceleration. This can be caused by a failing of many sensors or modules in the fuel injection system. It is recommended to have an experienced shop perform diagnosis to find the root of the problem.
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.
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.
2003 Ford Ranger Questionsoil leak (1 answer)
My 03 Ranger with a 2.3 liter keeps leaking oil. The oil seems to build up at the exhaust manifold. Had a new value cover gasket installed but it keeps leaking
But it will still only work on High. What is the solution?
Running great next time crank is skipping n sounds like valve clicking
Bank 2. And lean