1992 Bronco XLT 5.8L E4OD, Manual Transfer Case, Manual Locking Hubs
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44 Posts
Just the other day on Wednesday my Bronco started misfiring while going to work, but just intermittently. On Friday I took all of my spark plugs out, cleaned them up, regapped them all and the truck ran great again no misfire. Saturday morning and it's back again....... So today I dived into it and replaced all my plugs, wires, and ignition coil. Plugs and wires only had 20k on them, but the ignition coil hasn't been changed since I owned it so I figured I would replace it. Again no luck truck is still misfiring. Doesn't seem to really do it at idle but does it quite consistently when I apply the throttle.
I have a new Bassani Y Pipe and Headers in my garage I've been waiting to put on so I said screw it and cut the exhaust off just to rule out my cats being clogged. While also removing the rest of my air injection system since my air pump has been bypassed for a few months now anyways. Again no change now the truck is just a lot louder and harder to hear the misfire! I don't think the issues are related but the truck has had a high idle since I've owned it which I'm not sure what that is either. I'll attach below a list of all I've replaced on the truck since I've owned it cause it's a lot... I've tried pulling codes on the truck KOEO and just get a 111 everytime, and now I had the battery disconnected while working on it today so I certainly won't get any. I've done so much reading on this the past few days and I'm just at a loss at this point. Any advice would be greatly appreciated!
I have a new Bassani Y Pipe and Headers in my garage I've been waiting to put on so I said screw it and cut the exhaust off just to rule out my cats being clogged. While also removing the rest of my air injection system since my air pump has been bypassed for a few months now anyways. Again no change now the truck is just a lot louder and harder to hear the misfire! I don't think the issues are related but the truck has had a high idle since I've owned it which I'm not sure what that is either. I'll attach below a list of all I've replaced on the truck since I've owned it cause it's a lot... I've tried pulling codes on the truck KOEO and just get a 111 everytime, and now I had the battery disconnected while working on it today so I certainly won't get any. I've done so much reading on this the past few days and I'm just at a loss at this point. Any advice would be greatly appreciated!