'93 F-Super Duty/F-450 with E4OD auto trans.
so i was working with log truck yesterday using the auto crane to load chip truck and trailer and on the way to the job,it made an odd noise.at first it just sounded like the converter unlocked.then it went away,came back,went away,came back etc.
so i work the truck idling since she still has good oil pressure.then mid day and today i noticed it quiets right down under load.if i set the e-brake and rev it,she sounds fine.but it's horrendously loud at idle now and when going down the road under no load.
at first i figured,well maybe it's a bad injector knock (all new though) but the exhaust is clear and i don't notice any of the hard lines getting hot.i tried loosening most of the lines but the knock/grind sound doesn't go away.just misses a bit.
i'll pull the inspection cover to see,if anything can be seen but the more i hear it,the more it sounds like a bad converter (but that's new) or broken flexplate.
oil and trans fluid look perfect.
anyone with a broken flexplate experience here? sounds god awful loud at idle just like she's about to throw a rod but under load it's normal?
any other thoughts if im not on the right track here?
im hoping a broken flexplate cus 5 trans pulls just aint enough.you just know iv been begging for an excuse to make it an even half dozen.
so i was working with log truck yesterday using the auto crane to load chip truck and trailer and on the way to the job,it made an odd noise.at first it just sounded like the converter unlocked.then it went away,came back,went away,came back etc.
so i work the truck idling since she still has good oil pressure.then mid day and today i noticed it quiets right down under load.if i set the e-brake and rev it,she sounds fine.but it's horrendously loud at idle now and when going down the road under no load.
at first i figured,well maybe it's a bad injector knock (all new though) but the exhaust is clear and i don't notice any of the hard lines getting hot.i tried loosening most of the lines but the knock/grind sound doesn't go away.just misses a bit.
i'll pull the inspection cover to see,if anything can be seen but the more i hear it,the more it sounds like a bad converter (but that's new) or broken flexplate.
oil and trans fluid look perfect.
anyone with a broken flexplate experience here? sounds god awful loud at idle just like she's about to throw a rod but under load it's normal?
any other thoughts if im not on the right track here?
im hoping a broken flexplate cus 5 trans pulls just aint enough.you just know iv been begging for an excuse to make it an even half dozen.
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