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Ford Problems

RepairPal has identified the most common problems for 50 Ford models based on complaints from actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.

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Known Problems

A leaking axle shaft seal and / or PTU cover seal can cause transmission (red) or Power Transfer Unit (PTU) (brown) fluid leaks at the axle area. The axle shaft seal and / or PTU cover seal may be leaking and should be replaced as required.

The 2005-2009 Ford Mustang 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.

The Check Engine Light may come on due to failure of the Variable Camshaft Timing (VCT) solenoid. The VCT solenoid will need to be replaced to correct this concern.

Intermittent rough idle may be caused by the EGR sensor sticking, causing the EGR valve to stay slightly open. The valve and sensor must be replaced together to correct this concern.

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.

Drivers may notice the engine idling roughly, hesitation to accelerate, and even engine stalling on the Ford Mustang GT V8..

The mass air flow sensor (MAF) is prone to fail, and commonly is diagnosed as the faulty component when these issues arise.

When the Check Engine Light illuminates, and the diagnosis is a failed MAF, it will require replacement to correct the issue. 

Ensuring the air filter is installed properly, and sealed to the air filter housing, can help prevent MAF sensor issues. 

Squeaks and creaks heard while driving over bumps and turning can be caused be a couple common sources and should be carefully diagnosed. Possible weld issues on the lower control arms can cause the noise concerns and require repair kits for the lower control arms from Ford. A jounce bumper (bump stop) rubbing against dry strut plate can cause an abrasion noise from the strut area. In this case the strut assembly should be disassembled to lubricate the jounce bumper and then reinstalled.

Adhesive for foam blocks in the headliner can fail leading to poor fitment of the headliner and a possible rattle around the sunroof area. The foam blocks attach the headliner to the mounting brackets. Access the headliner and re-secure the foam blocks to the brackets using cable ties / zip ties.

The Check Engine Light may illuminate, the engine may run rough and have misfires on acceleration. Commonly the ignition coils and/or the ignition coil boots are the cause of this problem. The rubber boot that insulates the coil to the spark plug can dry and crack allowing arcing. Inspect the coils and boots, and replace them as needed. Our technicians also recommend replacing the coil boots any time the spark plugs are replaced.

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.

A defective crankshaft pulley can cause a clicking, or clanging noise from the engine when it is running. The center hub can become loose and the pulley should be replaced with the revised design.

This concern relates specifically to the E4OD and 4R100 automatic transmissions. Transmission fluid leaking from the front of the transmission bell housing may also be accompanied with shifting and transmission engagement issues. This is often caused by transmission overheating and is the sign of a significant internal transmission problem. The superficial cause is the failure of the front pump seal of the transmission. The immediate repair is to remove the transmission, replace the front pump and seal, replace all fluid with the transmission filter, and verify proper flow through the transmission fluid lines and cooler. It is also recommended to make sure the vehicle is not pulling a load that is heavier than the gross vehicle weight limits because this can cause the transmission to overheat. Depending on the transmission's mileage, this can also be a good time to consider a complete overhaul or replacement with a remanufactured unit, as often just the pump and seal replacement is a short lived remedy.

An abnormal noise may develop from the transfer case. At this time parts are not available to repair internal damage to this type of transfer case, replacement is the only option. It is not uncommon for irregular tire wear to cause a similar noise. Diagnoses should be performed to confirm the actual cause of the driveline noise. Tire noise can be reduced by rotating the tires at least every 5000 miles.