We have a 97 Cougar with the 4.6v8, I have a question, this engine will crank over, but it backfires through the throttle body, even more when starting fluid is added. Could this car have jumped timing? A Friend said it had a blown head gasket.....Could this be true?
That could be true... sometimes a Head gasket can fail between cylinders, and the only indication is as you see.
Suspect valve or spark timing first, though
I figured maybe it had jumped timing, because it still will fire but it seems like its at the wrong time...If it is the timing chain/gear worn out, will that hurt the engine? Can it be fixed without internal damage?
Could be or maybe not.. there's a thing called a 'leak-down test' that would determine if valves are bent. Or headgasket fail between cylinders.
Probably
Note: You arent going to get comprehensive help on the entire problem and solution/repair, here. There simply isnt time or energy. The answer is to get a book, or the shop CD off ebay... and figure things out for yourself.
Further info may be on
MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.