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Hello!
I have a jimmy with the 4.3 liter. It's a 5 speed. It has recently started misfiring in cylinder 3. It started after I ran out of gas one day about a week ago. (Not sure if it's related)
I took it to a shop and they said it was a spark issue because it had cheap plugs in it.
I changed the plugs and rotor and cap with no improvement.
My code reader says my timing is -20 at idle and I'm not sure what it is supposed to be.
Weirdly, this morning, the studder completely went away for about 5 minutes before coming back to the way it was. And same thing - misfire cyl 3.
Any advice is appreciated.
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- 1 year ago
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