Ok, I bought a 2005 F350 that had blown head gaskets. I put a new set of KD heads on it, ARP studs, oil cooler the whole nine yards and wrapped up up a bit over a week ago. I've been driving it since as my daily driver about 300 miles until today..
(original topic on the heads https://www.powerstroke.org/forum/ge...studs-not.html
Anyway the truck has run absolutely fantastic over the last week and I gained enough trust in it to run it about 80 miles away then back on Monday. Again ran great out on the highway absolutely zero problems. After doing the "in cab head job" I was going in half & half on a car lift with my dad so we could both get access to one.
I hooked up a 24ft flatbed to go pick up the lift.. I made it all the way to the town the lift was at made a quick stop for fast food then hit the road and maybe a 1/4 mile I lose my throttle.. Engine is running at idle but no gogo.. Push the pedal down it does nothing..
Parked on the side of the road, played with things let it sit awhile start it up and it revs up.. Get back going and it dies but it's getting check engine and sputtering mixed with the throttle working "kinda"..
Stuck on side of road again but in a better spot.. Read online to check the Exhaust Back pressure sensor.. found one at Autozone a few miles away so took a LYFT to get it. Get back to the truck take my old one off and it's full of junk (grime).. Bad news is the new one doesn't fit the elbow adapter fitting on the bracket, but I bought carb cleaner and cleaned the old sensor and put it back on..
Engine fires up runs great.. (In meantime I also ordered same part to Oriely's just in case..) I drive to Autozone to take the wrong sensor back (sensor was not same threads and beveled tip) Truck runs great so I'm like ok I fixed it anyway by cleaning it.. I'm now leaving Autozone but being I'm 80 miles from home I opt to go to Oriely's to get the other sensor in case it's the right one...
Half way to Oriely's and the engine is sputtering, and barely chugging along.. I limp into the parking lot, go inside to get the EBS from them and they have the same one as AutoZone.. (It's a fitting with a beveled tip) I realize if I remove the bracket with the elbow I can just thread the sensor directly into the connector tube.. It fits I hook everything up, start the engine and no throttle response..
Now I'm left wondering is the new sensor the right one? This is the sensor both O'Reilly & AutoZone have
But this is what the sensor that came off the truck looks like..
Notice the difference in the tips, different threads and flat vs bevel.. Are these sensor the same so far as voltage and inner workings? I can get the beveled one to screw on by removing the bracket & connecting it direct but at this point I dunno if it's the right sensor..
The truck still has issues with the throttle not working and running like crap.. However sometimes it will run perfect until it starts acting up. Also it throws out a crazy amount of codes with the old sensor mostly from other sensors and usually voltage related which is what I read the EBS will cause if it's bad..
So my question is will that other sensor work properly or is it the wrong one which is causing the truck to still not run properly? What else can I try to rule out? I don't think it would be the electronic gas pedal assembly because that wouldn't explain the engine running really rough and surging/chugging..
I don't think this is anything to do with my head job, I'm thinking this is just some sensor or something that has gone bad..
I had to leave the truck because a 80 mile tow with a 5th wheel trailer was gonna cost me over $600... Going back tomorrow with another truck and plan to load mine on the trailer and tow it home.. 8( .. Any ideas what else I can try short of the $500 throttle pedal and ordering the proper looking sensor online?
Also forgot to mention it's has a EGR delete and 4" straight pipe