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U3239 Engine Trouble Code

Meaning of U3239 engine trouble code is a kind of network trouble code and when your car's 'U3239 Check Engine' light comes on, it's usually accompanied by a sinking feeling in the pit of your stomach. The light could mean a costly problem, like a bad catalytic converter, or it could be something minor, like a loose gas cap. But in many cases, it means at minimum that you'll be visiting the car dealer to locate the malfunction and get the light turned off.

U3239 Fault Symptoms :

Check engine light comes on
Engine stalling or misfiring
Engine performance issues
Car not starting

If one of these reasons for U3239 code is occuring now you should check U3239 repair processes.
Now don't ask yourself; What should you do with U3239 code ?
The solution is here :

U3239 Possible Solution:

Disconnected, dirty or fouled spark plugs are common causes for engines that won't start. Spark plugs typically need to be replaced every season or 25 hours of use. You should also check that the spark plug gap is set properly. If your spark plugs look good, problems with your ignition system can also preventing a spark. These can range from a faulty spark plug lead, shorted kill switch or flywheel key damage.

U3239 Code Meaning :

U	3	2	3	9
OBD-II Diagnostic Network (U) Trouble Code For Engine	Ignition System Or Misfire	Manifold Absolute Pressure/Barometric Pressure Circuit High Input	Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)	Reverse Input Circuit

Is the fuel pump sometimes not priming when you turn the key to ON(II)? Start by measuring the fuel pressure and checking whether you have bright white-bluish spark at all four plugs. The mechanical timing is also something that you should check, as we mentioned above.

U3239 OBD-II Diagnostic Network (U) Trouble Code Description

U3239 engine trouble code is about Reverse Input Circuit.

Main reason For U3239 Code

The reason of U3239 OBD-II Engine Trouble Code is Manifold Absolute Pressure/Barometric Pressure Circuit High Input.

U3239 the main thing to check is to verify the operation of the VCT solenoid. You're looking for a sticking or stuck VCt solenoid valve caused by contamination. Refer to vehicle specific repair manual to perform component tests for the VCT unit.

	Example: 0140