@bobby1030 Is the truck throwing any codes how many new coil packs did you install . How long did you run the truck when it was misfiring ? What it sounds like may have happened plugged your cat . if you ran the truck for any length of time with raw unburnt fuel running into the catalytic convertor you run the risk of plugging it . if that happens it puts a lot of strain on the engine leading to misfires and no power causing overheating and stalling . If your getting an engine code of P0420 or P0430 . you may need to change the convertor
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@bobby1030 Is the truck throwing any codes how many new coil packs did you install . How long did you run the truck when it was misfiring ? What it sounds like is that you may have plugged your cat . If you ran the truck for any length of time with raw unburnt fuel running into the catalytic convertor you run the risk of plugging it . If that happens it puts a lot of strain on the engine leading to misfires and no power causing overheating and stalling . If your getting an engine code of P0420 or P0430 . you may need to change the convertor. You can also test the convertor by measuring the temp on both ends of the convertor if the temp is the same or less after the convertor then its not working it should be considerably hotter after the convertor
@bobby1030 Is the truck throwing any codes how many new coil packs did you install . How long did you run the truck when it was misfiring ? What it sounds like may have happened plugged your cat . if you ran the truck for any length of time with raw unburnt fuel running into the catalytic convertor you run the risk of plugging it . if that happens it puts a lot of strain on the engine leading to misfires and no power causing overheating and stalling . If your getting an engine code of P0420 or P0430 . you may need to change the convertor