misfire in engine.
#1
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Model: Cherokee
misfire in engine.
I was driving my keep to work yesterday when the check engine light came on. I pulled into autozone and the guy hooked up the computer. He said it was a misfire in cylinder 3 and that the code has came on 3 times. As far as I know it has only came on this time since I have owned it. I bought it about 4 months ago. It has the 3.7 and is a 2009 with 83k miles on it.
So what could be causing it? I have heard it could be the spark plugs, the wires, the coil packs or the fuel injectors.
I have new plugs to install, but haven't had the time to install them yet.
Anyone got an suggestions? Thanks.
So what could be causing it? I have heard it could be the spark plugs, the wires, the coil packs or the fuel injectors.
I have new plugs to install, but haven't had the time to install them yet.
Anyone got an suggestions? Thanks.
#3
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I bought the NGk 6987 copper spark plugs. I will switch them out, but do you think I should order new wires and coils? The parts stores around me doesn't carry them in stock and have to order them. Even the jeep dealer.
#4
Old fart with a wrench
Inspect the coil boot for carbon trailing, cracks, or melting. A loose spark plug can leak hot gasses and melt the rubber insulator.
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