Rolls...but won't rock :)

[boyced]

Hi guys...first of all, thank you for the warm welcome! Great looking & friendly site

I have a 97 Ford F-250 7.3 diesel...I have had blow by for a little while - which I have been told is bad oil rings - and I need a new motor...but I can't afford a new engine...so I keep him full of oill...and have taken care of "Whitey" the best I can. But the other day, he decided not to start....I have fuel (the first question most might ask me)...it originally gave a cam positioning sensor code...we replaced the cam positioning sensor with a new one...we have checked the fuel pump, put in a new fuel filter (just for the sake of it was time - not that it looked too bad), checked the HPOP, and computer. He rolls over but won't start....anybody got any ideas?

Thanks,
Debra

[RAM CR 24V]

It's possible the rings went completely. One thing I may suggest is have a compression test done.

[biged681985]

my uncles 97 done something similar to this, and it turned out to be the ecm. got it to fire up right away. easy way to check is find a friend with a 97 and swap the ecm and see if it fires up. good luck figurein it out

[boyced]

10-4, thanks for the feedback...is the ECM the metal box mounted on the firewall on the drivers side? If it was the rings going all together - would it have given any other warning signs?

[biged681985]

i believe so, it was at brians truck shop and cale had one there and swapped it out. truck was on a trailer and i was standing on the ground.