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Jeep Liberty U1403 Engine Trouble Code

When the check engine light comes Jeep Liberty U1403 code on the first you should check is the gas cap. Pull over, retighten it, and take a look at the cap to see if it has any cracks in it. Continue driving and see if the check engine light turns off. Alternately, you can purchase a gas cap for about $3 at an auto parts store. All you need to do is take the old one off and screw on the new one. If you've already made it to the store, you might as well just replace it. While not car-threatening, it's good to take care of this right away to improve gas mileage.

Jeep Liberty U1403 Code Meaning :

U 1 4 0 3
OBD-II Diagnostic Network (U) Trouble Code For Engine Fuel And Air Metering O2 Sensor Heater Circuit Malfunction Cold Start Injector 1 Malfunction Exhaust Gas Recirculation Sensor B Circuit High
Jeep Liberty Engine

When you check Jeep Liberty car engine light came on code U1403 the reason should be . However manufacturer may have a different definition for the U1403 OBD-II Diagnostic Network (U) Trouble Code. So you should chech it on our car models.

U1403 Fault Symptoms :

  1. Check engine light comes on
  2. Engine stalling or misfiring
  3. Engine performance issues
  4. Car not starting
If one of these reasons for U1403 code is occuring now you should check U1403 repair processes.
Now don't ask yourself; What should you do with U1403 code ?
The solution is here :

Jeep Liberty U1403 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.

U1403 OBD-II Diagnostic Network (U) Trouble Code Description

U1403 engine trouble code is about Exhaust Gas Recirculation Sensor B Circuit High.

Reason For U1403 Code

The reason of U1403 OBD-II Engine Trouble Code is O2 Sensor Heater Circuit Malfunction.

Parts or components should not be replaced with reference to only a U1403 DTC. The vehicle service manual should be consulted for more information on possible causes of the fault, along with required testing.