2001 7.3 poor mpg, lack of power
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I am not a diesel mech but I am starting to learn more since it is time for me to work on my 2000 I had since new. I saw the same thing in my truck when I did not put my additive in. I use diesel kleen cetane boost, the new diesel we get sucks and runs like **** if you do not boost it up. just what I have found out. I have a 6 sp in my truck.
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Do you get any smoke at all? black or white?
I started losing power and seeing black smoke when I would stomp up a hill. Didn't think anything of it. until my truck couldn't even haul the toy hauler up a hill. It would over heat and smoke like she came straight from hell didn't seem like an electrical issue, more mechanical. So I unhooked the clamp that connects the turbo and the down pipe and discovered the engine warm up valve and had been sticking half closed until it finally shut completely. (like driving your truck with the exhaust brake on all the time except worse) replaced the valve and walla she ran like new.
Another thing is if your seeing loss of power and possibly white smoke it could be your fuel pump and or connection. Had a 02 7.3l service truck started losing power and eventually started pouring white smoke and lost all power. discovered that the connection at the rail mounted fuel pump (between the driver side front and rear door in most cases) there is a black 4 pin connector (only two pins should be in use) that corroded causing a bad connection.
From what your saying, it doesn't seem like this is your problem but I thought I'd better throw it out there just in case.
I started losing power and seeing black smoke when I would stomp up a hill. Didn't think anything of it. until my truck couldn't even haul the toy hauler up a hill. It would over heat and smoke like she came straight from hell didn't seem like an electrical issue, more mechanical. So I unhooked the clamp that connects the turbo and the down pipe and discovered the engine warm up valve and had been sticking half closed until it finally shut completely. (like driving your truck with the exhaust brake on all the time except worse) replaced the valve and walla she ran like new.
Another thing is if your seeing loss of power and possibly white smoke it could be your fuel pump and or connection. Had a 02 7.3l service truck started losing power and eventually started pouring white smoke and lost all power. discovered that the connection at the rail mounted fuel pump (between the driver side front and rear door in most cases) there is a black 4 pin connector (only two pins should be in use) that corroded causing a bad connection.
From what your saying, it doesn't seem like this is your problem but I thought I'd better throw it out there just in case.
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Every time you step on the accelorator you have just changed the HPO.
Notice the path of oil flow... From the pan to the pump to the HPOP to the injectors to the pan... Nice little change there...
The following 2 users liked this post by CSIPSD:
Diesel Dawgs Performance (06-05-2012),
docweld (06-11-2012)
#19
Anyone ever heard of measuring the injector selenoid armeture distance with a feeler guage? Thats what my local shop (hypermax) said to do to determine if they are good/bad or rebuildable. Figured if I do o-rings wouldnt hurt to have the injectors flow tested and cleaned/repaired if possible while they are out. Any other thoughts here?
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