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U3437 Engine Trouble Code

Meaning of U3437 engine trouble code is a kind of network trouble code and when your car's 'U3437 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.

U3437 Fault Symptoms :

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

If one of these reasons for U3437 code is occuring now you should check U3437 repair processes.
Now don't ask yourself; What should you do with U3437 code ?
The solution is here :

U3437 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.

U3437 Code Meaning :

U	3	4	3	7
OBD-II Diagnostic Network (U) Trouble Code For Engine	Ignition System Or Misfire	O2 Sensor Heater Circuit Malfunction	Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)	Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical

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.

U3437 OBD-II Diagnostic Network (U) Trouble Code Description

U3437 engine trouble code is about Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical.

Main reason For U3437 Code

The reason of U3437 OBD-II Engine Trouble Code is O2 Sensor Heater Circuit Malfunction.

U3437 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