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Old 09-24-2007, 12:28   #1 (permalink)
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Question backfiring

I have a 1980 ltd with a 5.8 liter and I am having problems with backfiring. I bought new spark plugs and also made sure that the intake manifold and carb are tight so I don't think it's a vacuum leak. It seems to almost backfire a little more with the new plugs, but then when i've been driving for a while it stops backfiring.
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Old 09-24-2007, 12:59   #2 (permalink)
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Re: backfiring

Have you checked the ignition timing?
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