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cel code 73 & 74

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Old 12-23-2009, 12:24 PM
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Default cel code 73 & 74

Cel code 73 and 74..Anybody knows how to fix that. I know that its misfire at cylinder 3 and 4, but do you know how to fix that problem. Anybody, Help..
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Old 12-23-2009, 12:47 PM
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Default Re: cel code 73 & 74

start by narrowing it down.

pull the plugs and take a look at them

probables:
spark plugs
spark plug wires
dizzy cap

I would start there
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Old 12-23-2009, 02:58 PM
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Default Re: cel code 73 & 74

Generally the only other thing that can go wrong is the distributor itself (one of the position sensors inside usually) but that usually causes misfires on all the cylinders randomly, not just two specific cylinders and not the other two.
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Old 12-23-2009, 03:45 PM
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Default Re: cel code 73 & 74

does it happen all the time or just when it rains?
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