Q: Jeep JK loss of power and engine light

asked by on

Check engine light coming in a 2012 Jeep JK, it will come on and off at times and throws the code of an o2 sensor. But sometimes it will come on with no code at all! Today while making a 90 degree turn out of a parking lot and I lost power and had to pull off to get out of the way of an on coming car. Don't know if these are corellated but I about halfway through the turn my traction light started flashing and it it just came to a sluggish roll

My car has 50000 miles.

Hello, thank you for writing in. With the vehicle stalling, my first instinct would be to check the charging system. That would be the battery and the alternator, their electrical wiring, and the terminals. When the system fails, all of the electrical components lose power, and you can get an array of warning lights. If both are working correctly, test the fuel system for proper pressure, the ignition system for proper voltage going to the spark plugs, the throttle, and air intake sensors. Scanning the vehicle again for diagnostic codes if possible, as this may also help point you in the right direction now that things have worsened. For more help with testing and repairs, contact our service department to schedule an appointment.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Jeep JK loss of power and engine light

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: CEL transmission slipping

Hi there. You definitely appear to have a voltage issue with the vehicle. From what you are can be a bad connection at the battery, a failing alternator, or most commonly a bad ignition switch. I usually start by checking...

Q: Engine noise 2012 Toyota Sienna

Hi there - when the oil is changed, the first start-up afterward causes a real surge in oil pressure, enough so that the oil pressure relief valve is activated, and sticks open. (This is nothing the oil change people did...

Q: I need to know the purge valve solenoid location and how long it takes to replace it.

Hi there. There are two different locations that the purge valve was located at, depending on the vehicle type. The first location would be on the engine intake next to the throttle body on the left side when viewing the...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...