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Car Problems

RepairPal has identified the most common car problems 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

The engine may develop a stalling and/or no start condition due to a failed crankshaft position sensor.

The engine may develop and oil leak due to a porous engine block casting. The repair procedure is dependent on where the leak is located. Honda has released a service bulletin covering model years 1998-2003. Honda may offer assistance with repairs, determined on a case by case basis.

Check Engine Light illumination—combined with a lack of power or a stumble on acceleration—may be caused by the throttle position switch (TPS). Kia released an improved part which should correct this concern.

Valve cover gasket leaks are common after 60,000 miles. Symptoms will include oil drips under the vehicle and burning oil smell from the engine compartment.

Excessive oil consumption—defined as more than one quart per 1,000 miles (on vehicles with less than 50,000 miles) or more than one quart per 750 miles (on vehicles with more than 50,000 miles)—is common. Common causes include exhaust valve guides, valve cover gaskets, camshaft plugs, camshaft seals, and crankshaft seal.

The engine may stall when the engine is warmed up. This can be caused by a failed crankshaft position sensor and/or camshaft position sensor. These sensors can fail intermittently so the problem may come and go. Sensors on certain models have been recalled by Nissan and will be replaced as necessary. Please visit our recall section to see if your Nissan is covered by this recall.

Vehicles equipped with a 7-speed automatic transmission may develop a rough shifting condition, most commonly going up from first to second gear and going down from third to second or second to first gear. Our technicians tell us this is due to an internal component failure. Mercedes has released updated parts; the transmission will need to be removed and disassembled to complete the necessary repairs.

A shudder or vibration may develop while driving at speeds between 35 and 40 MPH. Our technicians tell us this condition is commonly caused by a failed automatic transmission torque converter. It is recommend to replace the torque converter and install an updated powertrain control module (PCM) to correct this concern.

To review some comments from the RepairPal community regarding this issue, please click here>>

Failure of the front control arm bracket bushingsoften referred to as thrust rod bushingsis moderately common. One symptom is a clunk or jolt felt in the steering when braking.

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 center multi-function display may stop working. This is commonly caused by a poorly soldered internal connection on the display circuit board. These display panels can be successfully repaired or reconditioned by a shop specializing in such repairs so it helps to investigate further. 

The front lower control arm portion of the front suspension may cause a rattling noise over bumps and require replacement.
Software updates are available to address erroneous illumination of the "Service 4WD System" warning light and other issues (e.g. shifting, performance).

The front brake rotors can warp and cause a vibration when braking. The rotors will need to be machined or in cases where they are worn to thin, replaced to correct this issue.

To inspect a connector for the cooling fan motor, Dodge issued a safety recall. Coolant may be drawn into the connector, causing a short circuit and potentially an engine fire. Dealers are installing a revised wiring harness and replacing any damaged fan motors.

Problems with the pneumatic system can cause closing assist and door lock issues.

The AC system may blow warm air due to refrigerant loss caused by a leaking low pressure AC hose. These hoses commonly develop a leak at the hose crimp connection.

The front struts can wear prematurely and create a knocking noise when driving over bumps.

Welds on the catalytic converter heat shield can corrode causing a rattle during acceleration and possibly causing Check Engine Light illumination. The common repair for this issue is replacement of the damaged catalytic converter.

The electronic throttle actuator (throttle body) can fail causing a loss of power and illumination of the Check Engine Light.

The right-side motor mount can wear prematurely and cause excessive engine movement. Symptoms you may experience from a failed motor mount are vibrations at idle, noises while going over a bump and vibrations when the transmission is shifting. Replacement of the motor mount is needed to fix the issue. 

An engine vacuum leak from the intake manifold gasket can cause the engine to misfire or have a rough idle. This will turn on the Check Engine Light and diagnostic trouble codes will be stored. It is advisable to drive your car as little as possible when the engine is misfiring to avoid damaging the catalytic converter, which can cost many hundreds - thousands of dollars. See how much it cost you here

The catalytic converter closest to the cylinder head can fail causing illumination of the Check Engine Light. Prompt repair of this problem is recommended because the catalyst material can be sucked into the engine and cause internal damage.

The Air Conditioning Condensers can fail due to damage from road debris due to a lack of protection for the condenser. 

Engine oil leaks are common from the valve cover gaskets and camshaft chain tensioner gasket.