Skip the auto shop - Our mechanics make house calls

Q: jeep started to act up and stalls randomly at slow speed or at a stop.

asked by on

I Bought the jeep of a kid he said it was sitting for a little while check engine light is on for an o2 sensor probably the one they deleted but what could make the jeep stall randomly.

My car has 260000 miles.
My car has an automatic transmission.

A: Hi there. An engine that randomly stalls, c...

Hi there. An engine that randomly stalls, can be caused by any number of things. A fairly common stalling issue for the 4.0L is, a faulty CKP (crankshaft position sensor). This could be accompanied by, although not always, a check engine light and a P0335 trouble code. A dirty/faulty IAC (idle air control) valve could also cause random stalling. It is possible, a faulty O2 (oxygen) sensor could affect the engine idle, as the ECM (engine control module) uses information from the O2 sensor and other sensors to help determine the fuel delivery. Low fuel pressure, vacuum leaks, and other sensors, could also create random stalling issues. Proper diagnoses should be performed, to avoid unnecessary repairs. I recommend having your vehicle’s engine randomly stalls be diagnosed and repaired by a certified technician, such as one from YourMechanic.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: replaced fuel fulter on a 2001 jeep grand Cherokee laredo 6 cylinder engine

If the original diagnostic trouble code implicated a "fuel supply" issue (such as a clogged fuel filter) you may additionally have a problem with the fuel pump. The direction that a diagnostic would take will just depend on the specific...

Q: Speedometer not working correctly

Your assumption sounds about right, either the sensor and or the cable are sending some mixed signals to the dash and it doesn't know what to do with it. Have a certified mechanic take a look at your speedometer components...

Q: My oil pressure gauge is reading high

Hi there. Excessive oil pressure registering on the gauge can be due to a few different possible problems and would need additional testing to isolate the problem. The most common cause of the problem is the oil pressure sending unit...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...