Hello all,

This is my first post on this forum that I am enjoying reading very much on the Ford scene, I have been lurking around for a little while trying to educate myself with these trucks but need some advise.

I bought my first 99' F-250 super duty with plenty of miles on the clock but the price was right as it will be a hauler for my new 32ft travel trailer.

Like I said I just bought it and test drove it and everything seemed good so I bought it, then a couple days later when I picked it up I had a 100 mile drive home and needless to say I was a little turbo happy. It was making just below 20lbs of boost peek and never went over 700-800 deg on the exhaust, after some harder driving the check engine light came on but then below 1800 rpm or no boost it would come off, then back on right after gas was applied.

Then after taking it easy for a while I got off the hiway and was decelerating and got back on the gas after the exit and it was like there was nothing there at all, the pedal was at the floor and it just kinda bogged.

I drove the truck today and there was no light on or anything unusual happened except it ran like a turd when it was cold, and from what I have read thats normal.

Does anyone have any ideas if it was defueling and how to fix this?

The truck has the 7.3 banks turbo, banks super chip, banks full exhaust and filter. Also the CPS has been changed with the recall from the dealer.

Also is there a sticky or related tread for "us newbies" that dont know what oil or how to prime after running out of fuel or even very basic diesel maintenance?


Any input is much appreciated!

 

Here is a good link for the 7.3 maint and mods. You might have a better response in the diesel forms for your questions also. I would recomend getting the code read and post on the diesel form, someone there will be able to help you out.

 

Welcome to FTE Todd. Try reposting this question in the 99.5 to 03' 7.3 fourm.

 

First, if the check engine light came on, a code was set. That code is stored for retrieval with a compatible scanner. Don't bother going to Autozone/Pep Boys/Napa/etc to read the code, generic OBD-II scanners don't work on Powerstrokes. If you don't have a scanner, go to the dealership or a diesel repair shop.

Second, 20 psi of boost and only 700-800 degrees on the pyro means that the probe is installed in the downpipe. This is a big no-no for these trucks. Post turbo EGT's are meaningless, and are especially unreliable when towing. Before you start towing that new travel trailer, relocate the pyro probe to the exhaust manifold or up-pipe.

 

Thanks for the replys, I realized after I should have moved the thread so I did now.

I am glad you mentioned that the generic scanners dont work on the powerstroke as I thought it would be a good investiment for the truck and car to have.

As for the pyro I should have mentioned that it did go up to 1200 deg on a hill but averaged around 7-800 when driven a little hard (without any load) and 600 seems to be the norm if that clears up any confusion, but I will for sure look where the probe is located for optimum readings. Good advise.

 

If it has the Banks stuff on it, the pyro is most likely after the turbo in the Banks Power Elbow. It comes pre tapped and that is where banks says to put it. Go figure