How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Dan Your Own Question
Dan
Dan, Technician
Category: Jeep
Satisfied Customers: 23590
Experience:  Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
17871496
Type Your Jeep Question Here...
Dan is online now
A new question is answered every 9 seconds

Grand cherokee laredo: our 2004 jeep grand cherokee is sputtering

Customer Question

our 2004 jeep grand cherokee is sputtering did a full tune up plugs wires and coil changed fule fliter and also the dealership replased the pcm with a used one and reprogramed it was fine for about 100 miles then it started doing it again no code have been set
Submitted: 1 year ago.
Category: Jeep
Expert:  Dan replied 1 year ago.
Hello, my name is ***** ***** I'm here to help get your problem solved. The crankshaft position sensor is common to fail causing ignition problems so that is the first place I'd look which may require a scope. I would bring it back to dealership and let them know you expect them to fix problem and they should be willing to do it for free or give a good deal. Let me know how it goes or if you have more questions, thanks.
Customer: replied 1 year ago.
cam shaft crank shaft sensors where replaced prior to dealer
Expert:  Dan replied 1 year ago.
Was replacing PCM only thing that temporarily solved the problem? If so, that would point toward the PCM failing again.

Related Jeep Questions