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2004dodge ram1500 5.7lhemi. Misfire on cyl.5. Have changed plugs wires and coil. Only runs rough when at idle.

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You probably need to do a compression test next to see if there is any mechanical faults on that cylinder. then look at the injector, The injector will cause a more pronounced fault on idle if it is over fuelling.

Posted on Apr 19, 2017

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