2004 hd with 6.0 firing or sensor?
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2004 hd with 6.0 firing or sensor?
I have a 2500hd with 6.0 that starts and idles normal then begins missing badly. Changed the plugs and wires, unhooked the exhaust in case that was clogged. Code shows Oxygen sensor upstream. Was told by a tech it is possibly a Crank sensor. Didn't want to start spending more money till I had a better idea.
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