88 Bucking Bronco
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Joined: Mar 2006
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88 Bucking Bronco
I have an 88 Bronco 5.0L EFI that I use for my work truck. It has developed a random misfire problem. Replaced fuel filter, plugs, wires, rotor cap, pcv, ran okay for a couple months, now doing it again. Runs good when first started in the am, but after warming up it (sometimes!) begins missing so bad it lurches down the road. If I let it sit for a couple hours, it runs fine again for awhile. The thing that's driving me nuts is that it will run good for a few days then do it again. Any help will be much appreciated.
Senior User
Joined: Apr 2003
Posts: 448
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From: Edmonton, AB Canada
Sounds like classic symptoms of the ignition module. Check your connections first at the distributor, and also check to make sure the distributor is also timed right and torqued down. I had a similar problem with my 92 when i put the 302 in it and it turned out to be the distirbutor was loose.
Last edited by Tdvjensen; Feb 22, 2007 at 10:38 AM.
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