My 7.3 might be reaching the end at only 185,000 miles. I've owned it since it had around 140,000 miles. I don't think it was maintained well. Dirty oil, engine codes, ECT.
I've been battling with back pressure being high since I've owned the truck. And there's not a shop around that works on diesels during the weekend to properly diagnosis it. Other places work the same hours I do.
Ebps tube cleaned with new sensor, and ebpv opens and closes properly every time I check. At the air filter side I can rotate the turbo freely and the shaft isn't tumbling around it feels good. I'm at a loss on solving the back pressure. Would Oil in intercooler?, Or Exhaust blockage in muffler?
To the knocking, I'm bringing up back pressure cause I don't know what exhaust valve float sounds like. About 3000 miles ago(2 months) I had a sticking injector, if I poured in a double dose of injector cleaner/antigel the truck ran good. The original Sound was a rpm rythmic that went away at 2000 rpms and less, and returned at 2000+ rpm. No smoke, stalling. Buzz tested fine, felt slightly rougher
I read about hotshotsecret striction eliminator bought some And did a oil and filter, hpop oil too change, in 50 miles the noise was gone, smoother and ran normal. And stopped the fuel additive and continued to feel better as time went by.
About 10 miles ago the truck started making the same noise but now it making it at idle and on deceleration, as well as all rpms while the other injectors are stopped letting the engine slow up. which I don't remember happening at all. Truck shakes slightly no stalling. I used Fordscan. And I had the following codes: p0284(fantom code from grey cps or cylinder #8) p0476(back pressure), buzz test is good every time cold or warm. Oil has gotten dirty and changing it, no smoke, normal blowby, about a month ago I had a passenger fuel return line bust, from bracket rubbing, I tried by ear trying to pin point the knocking but passenger and driver fender areas are just all equally loud. At idle it's barely noticeable, gets louder and noticable during acceleration. Maybe worth noting the last 3000 miles has been cooler than 75 usually 40s-60's.
I've been battling with back pressure being high since I've owned the truck. And there's not a shop around that works on diesels during the weekend to properly diagnosis it. Other places work the same hours I do.
Ebps tube cleaned with new sensor, and ebpv opens and closes properly every time I check. At the air filter side I can rotate the turbo freely and the shaft isn't tumbling around it feels good. I'm at a loss on solving the back pressure. Would Oil in intercooler?, Or Exhaust blockage in muffler?
To the knocking, I'm bringing up back pressure cause I don't know what exhaust valve float sounds like. About 3000 miles ago(2 months) I had a sticking injector, if I poured in a double dose of injector cleaner/antigel the truck ran good. The original Sound was a rpm rythmic that went away at 2000 rpms and less, and returned at 2000+ rpm. No smoke, stalling. Buzz tested fine, felt slightly rougher
I read about hotshotsecret striction eliminator bought some And did a oil and filter, hpop oil too change, in 50 miles the noise was gone, smoother and ran normal. And stopped the fuel additive and continued to feel better as time went by.
About 10 miles ago the truck started making the same noise but now it making it at idle and on deceleration, as well as all rpms while the other injectors are stopped letting the engine slow up. which I don't remember happening at all. Truck shakes slightly no stalling. I used Fordscan. And I had the following codes: p0284(fantom code from grey cps or cylinder #8) p0476(back pressure), buzz test is good every time cold or warm. Oil has gotten dirty and changing it, no smoke, normal blowby, about a month ago I had a passenger fuel return line bust, from bracket rubbing, I tried by ear trying to pin point the knocking but passenger and driver fender areas are just all equally loud. At idle it's barely noticeable, gets louder and noticable during acceleration. Maybe worth noting the last 3000 miles has been cooler than 75 usually 40s-60's.