Jeep Cherokee 2.5CRD - Blown fuel injectors

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Fri 14 May 2010 16:02
Jeep Cherokee 2.5CRD - Blown fuel injectors - storminnorma

I have a 2002 Jeep Cherokee 2.5 diesel with 83000 miles. Last October my garage replaced fuel injectors 1 and 2 and the copper seals. 2 weeks later the EGR pipe came loose. In January a bolt sheared and fuel injector 3 dropped onto the road (literally). In April injector 4 blew its rubber O-ring twice in 3 days. Finally yesterday whilst driving back from Bristol one of the rear injectors blew suddenly 20 miles from home (big bang, lots of smoke).

The car drives normally in between these episodes - no loss of power, timing issues, stalling or change in engine noise. There are no warning lights or signs of engine malfunction (normal running temp, fuel economy etc).

My garage believes that there is a buildup of pressure in the engine causing the fuel injectors to suddenly blow but noone knows why this is happening now - I have had the car for 4 years with no problems before this.

The car is booked into a diesel specialist garage in 1 weeks time. Has any one else had a similar problem?

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Fri 14 May 2010 17:31
Jeep Cherokee 2.5CRD - Blown fuel injectors - Peter.N.

There is a considerable build up of pressure in any engine, especially a diesel but they are built to withstand it, so I don't know what prompted that remark from your garage.

Taking it to a diesel specialist is the best move, they usually know what they are talking about.

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Sat 15 May 2010 14:35
Jeep Cherokee 2.5CRD - Blown fuel injectors - storminnorma

Fingers crossed someone can find out what is happening. I spoke to the diesel specialist and they said they had worked on quite a few Jeep Cherokees but had not heard of one doing what mine is doing. Noone has!

The mystery is why the ****** car is fine, then decides to suddenly blow an injector. Unless I can find out what the fault is the car isn't really safe to drive anymore, whch is major problem 'cause its my business car .

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Sat 15 May 2010 14:59
Jeep Cherokee 2.5CRD - Blown fuel injectors - jc2

Sounds like a good first step would be NEW retaining bolts.

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Sun 16 May 2010 15:28
Jeep Cherokee 2.5CRD - Blown fuel injectors - storminnorma

Sounds like a good first step would be NEW retaining bolts.

Do you mean the bolt holding the fuel injectors in place? Its had a new one of those and the bolt holding the EGR pipe in place has also been replaced recently.

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