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Pete, Technician
Category: Australia Car
Satisfied Customers: 28302
Experience:  Over 17 years diagnosing and repairing various model vehicles with some certifications and training.
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My 2004 Grand Cherokee 2.7 CRD suddenly started idling very

Customer Question

My 2004 Grand Cherokee 2.7 CRD suddenly started idling very rough yesterday. Just completed a 1600km trip without problems and when arriving discovered this idle problem. Started normal this morning and idle was normal for a while and then became rough again. When applying fuel it reacts normal and becomes smooth under higher revs. Where do I start to look?
JA: Is the rough idle intermittent or consistent?
Customer: Intermittend as far as I can see at this stage.
JA: Are you fixing your Grand Cherokee yourself? What have you tried so far?
Customer: I am on a roadtrip, this only started yesterday. have done nothing so far. Still has about 3000km to cover in the next week. Vehicle has done 175000km now.
JA: Anything else you want the mechanic to know before I connect you?
Customer: This is my current problem thanks. I am currently in Cape Town South Africa.
Submitted: 8 months ago.
Category: Australia Car
Expert:  Pete replied 8 months ago.

My name is ***** ***** I am a professional here at Just Answer. I noticed that your question had not received a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.

If you havent had the fault codes read out/checked at all this is the first thing that needs done here.If any codes are set those codes will need diagnosed to help locate and resolve this fault.If no codes are set I would have the fuel system tested as I have seen injectors start to fail or act up and can cause the issue you see here.

If more help is needed, use the reply tab to continue our conversation. If no further assistance is needed, kindly rate my service,your 5 star rating is appreciated.You can rate at any time and we can continue to work on your question as this will not close out your question.Keep in mind in some cases it can be difficult to fully diagnose or help repair your vehicle without seeing it and I work on delivering the best possible answer from what I see to work with.

Thanks Pete

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