Hello folks had my bronco II stuck to the nuts the other night had it floored trying to get out it back fired and would not start after. Towed it home cheaked spark got good spark , cheaked im getting fuel, I cheaked one plug hole got 120 psi compression. For the sake of it i put new plugs in it today tryed starting it would just back fire every now and then. Any idea's ?
2.8 uses timing gears made of a odd fiber material in stock form, and can disintegrate with age and redline rpms. I would start looking at more mundane things first like ingestion of water or a TFI module that died.