I have a 98 f-150 that was misfiring on 1, 2, then 3 cylinders. Last week I was given a second f-150 with a blown transmission but it runs just fine. So i took the coil packs and plug wires off of it and bought new plugs. I just installed them all yesterday, now it sounds ok at idle but once I put it in gear it idles really low and I have less power than a 4banger unless I put the pedal to the ground.
Ideas? The truck has been sitting for the past month so I was pretty pumped to have it running... I just want it running well now!!
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check engine light just came on, haven't been home yet to hook it up and see what the issue is, but it's not flashing so not a misfire right?
I'll run down to autozone and get some water remover this afternoon.. I don't think the gas is bad. I put the gas in there abot a month ago when it first started misfiring. Can gas go bad that quickly?