Jeep Wrangler U0138 Engine Error Code
When you check Jeep Wrangler car engine light came on code U0138 the reason should be . However Jeep manufacturer may have a different definition for the U0138 OBD-II Diagnostic Network (U) Trouble Code. So you should chech it on our car models.
Another consequence of U0138 Jeep Wrangler engine overheating may be a blown head gasket. Heat makes aluminum swell almost three times faster than cast iron. Thermal stress can distort the head and make it swell in areas that are hottest like those between exhaust valves in adjoining cylinders, and areas that have restricted coolant flow like the narrow area that separates the cylinders. The typical aluminum head swells most in the middle, which can crush the head gasket if the head gets too hot. This will usually cause the head gasket to leak compression between adjacent cylinders, or leak coolant into the cylinders.
Jeep Wrangler U0138 OBD-II Diagnostic Network (U) Trouble Code Descriptionso you have to check ODB-II Engine Error Code list.
Reason For Jeep Wrangler U0138 CodeThe reason of Jeep Wrangler U0138 OBD-II Engine Error Code is .
If your U0138 Jeep Wrangler check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system and engine control unit are in charge of monitoring a bunch of different U0138 Jeep Wrangler, and if they get a reading that's a little out of whack, up pops the check engine light.
Jeep Wrangler U0138 Possible Solution :
Power Steering Pressure (PSP) Switch Signal Malfunction The PCM counts the number of times vehicle speed transitions from 0 to a calibratable speed. After a calibratable number of speed transitions the PCM expects that the PSP input should have changed. This DTC is set if the transition is not detected. Vehicle towed with engine running Power steering hydraulic concern was repaired but DTC was not erased PSP switch/shorting bar damaged SIG RTN circuit open PSP circuit open or shorted to SIGRTN PCM damaged Check, if possible, if vehicle was towed or power steering service was performed. Observe PSP V PID while checking wires for intermittents.
What does fault code U0138 mean for Jeep Wrangler ?