Have you ever installed a new brake hardware kit and new slide pins and new brake lube? If you did, did you completely clean out the bore that the slide pins go into?
Does the truck lack any power? I would still check the EBPV.
You might check and see if the 99's were affected by the cps recall. I think grey = good and black = bad. Blue should be good too.
It may be a combination of a few things. You should at least be over 15MPG.
There are tons of articles on here about this subject. I was able to get mine up to 15.8 MPG and I'm still doing stuff. I think i'll be over 16 MPG by next week.
That guy that puts out those"7.3 help videos" is an idiot, He has been proven way wrong on a number of things that has to do with some expensive repairs...(possible mistakes if its done wrong),I wouldn't pay him any attention....Just my .02 worthOk, when you change your oil, have you ever changed the oil in the high pressure reservoir? If you don’t change that oil too, I would start changing it. www.powerstrokehelp.com has videos on how to do that. Advanced auto has a hand pump that is red with some orange hoses. Make sure you get the oil treatment he shows you, I think it’s called ProLong, and use it the way he shows you. Autozone and Advanced Auto both should have it. Don’t get the smaller “booster” bottle. You have to get the big bottle. Run injector cleaner too. Bill recommends Stanadyne, but I just buy a bottle of Lucas when I get the ProLong because you probably won’t find Stanadyne at a parts store. You may already be running injector cleaner.
Torque converter is a good think to check, but I would think the slippage would be noticeable and you would see junk in your trans pan. IMO the mileage would be worse the heavier you are.
I've caught a few things he said, and thought NO!!!! But alot of the stuff he shows in the videos is Awesome to see because you can't find actual video anywhere else. Everyone has their own opinions, that's ok. I know for a fact that the oil in my high pressure reservoir was gunky. So i flushed it out pretty close to the way he shows. I kid you not the truck came alive and i gained an extra MPG. If changing the oil in the high pressure oil reservoir is wrong, i will vanish from this site for ever. It's the best thing i've done so far, second is the brakes.That guy that puts out those"7.3 help videos" is an idiot, He has been proven way wrong on a number of things that has to do with some expensive repairs...(possible mistakes if its done wrong),I wouldn't pay him any attention....Just my .02 worth