Question about 2005 Jeep Wrangler

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Engine dies my 2005 jeep wrangler with a 4 cyl. has died while driving. and a few times was very hard starting..it doesnt happen all the time..when it dies..i can just start it right up again usually with no trouble...but sometimes when i kill it cuz its a 6 speed manual..it is very hard to start again..do u think its a fuel pump starting to go bad? or some kind of sensor?

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Hi

This could be a blocked exhaust. Unscrew and remove the upstream O2 sensor (the one BEFORE the catalytic convertor) and then drive the jeep and see if the problem is resolved. If so then you have a blocked exhaust, probably caused by an internally collapsed catalytic convertor.

It could be a fuel pressure issue which is diagnosed via a fuel pressure test. You could, as a long shot, fit a new fuel filter and see if that resolves the issue, however, a worn fuel pump could also be causing it.

It could also, if the problem only occurs once the jeep has warmed up, be a problem with the upstream O2 sensor.

Very best regards

Geordie

Posted on Jun 09, 2008

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