Modified PCM?
Fleet Mechanic
Joined: Nov 2004
Posts: 1,427
Likes: 10
From: Templeton, Massachussetts
Originally Posted by karynzoo
I'm new to the diesel and working with a dealer that is difficult. I know they changed the paramaters for the boost as my diesel (not ford) mechanic checked it out. Becuase I'm not mechanically inclined it was explained to me that the boost is set for power right now rather than mileage. The dealer changed it back in May and won't acknowledge they did it but that's when my MPG dropped significantly, I know they did it, and they "know" they did it too. As soon as I get the write up from my NON Ford Motor Co mechanic I'll take it to them and ask for it to be brought back to the original stock specs. That should give me the MPG economy I'm looking for. Since I drive it every day I'd rather see the fuel economy rather than a big boost from the turbo every time I press the accelarator.
In may they checked the boost and also worked on the fuel gauge that was working improperly.
I'm also going through Ford Motor co as I couldn't get anywhere with the dealer. Until I did the mileage comparison from tank to tank I thought the fuel gauge was still off but not I think my truck is just burning more fuel.
I think the big sign on they posted on my forehead was the problem "She's a woman and doesn't know sh*&" was the overall problem. This dealership is the worst I've dealt with.
In may they checked the boost and also worked on the fuel gauge that was working improperly.
I'm also going through Ford Motor co as I couldn't get anywhere with the dealer. Until I did the mileage comparison from tank to tank I thought the fuel gauge was still off but not I think my truck is just burning more fuel.
I think the big sign on they posted on my forehead was the problem "She's a woman and doesn't know sh*&" was the overall problem. This dealership is the worst I've dealt with.
Freshman User
Joined: Oct 2007
Posts: 26
Likes: 0
From: Elgin, IL
mileage
I know my post is very generic...I'll post more info on Monday when I get the specs. From what I understand the tubo is kicking in way too soon.
Last edited by karynzoo; Oct 12, 2007 at 02:06 PM. Reason: update
Fleet Mechanic
Joined: Nov 2004
Posts: 1,427
Likes: 10
From: Templeton, Massachussetts
Originally Posted by karynzoo
I know my post is very generic...I'll post more info on Monday when I get the specs. From what I understand the tubo is kicking in way too soon.
Freshman User
Joined: Oct 2007
Posts: 26
Likes: 0
From: Elgin, IL
mileage
this is what the mechanic told me:
"Turbo boost & engine tourqe values early & high on overdrive lockout, advised customer to call fords service for reflash to factory updates and specs"
I called Ford and this place is especially difficult to deal with, he said he'd recheck it out but doesn't think there is anything wrong with the truck. I guess the fact that I was getting about 18mpg before they "fixed" my truck and am only getting about 12/13 now is just a figment of my imagination.
basically the mechanic told me they set it for a power mode rather than the factory specs that have a more economical mode for fuel consumption. The dealer acknowledges they reprogrammed the pcm but not that would have such an effect as I've stated. I'm very aggravated and obviously not mechanically inclined so I feel patronized.
"Turbo boost & engine tourqe values early & high on overdrive lockout, advised customer to call fords service for reflash to factory updates and specs"
I called Ford and this place is especially difficult to deal with, he said he'd recheck it out but doesn't think there is anything wrong with the truck. I guess the fact that I was getting about 18mpg before they "fixed" my truck and am only getting about 12/13 now is just a figment of my imagination.
basically the mechanic told me they set it for a power mode rather than the factory specs that have a more economical mode for fuel consumption. The dealer acknowledges they reprogrammed the pcm but not that would have such an effect as I've stated. I'm very aggravated and obviously not mechanically inclined so I feel patronized.
Fleet Mechanic
Joined: Nov 2004
Posts: 1,427
Likes: 10
From: Templeton, Massachussetts
Originally Posted by karynzoo
this is what the mechanic told me:
"Turbo boost & engine tourqe values early & high on overdrive lockout, advised customer to call fords service for reflash to factory updates and specs"
I called Ford and this place is especially difficult to deal with, he said he'd recheck it out but doesn't think there is anything wrong with the truck. I guess the fact that I was getting about 18mpg before they "fixed" my truck and am only getting about 12/13 now is just a figment of my imagination.
basically the mechanic told me they set it for a power mode rather than the factory specs that have a more economical mode for fuel consumption. The dealer acknowledges they reprogrammed the pcm but not that would have such an effect as I've stated. I'm very aggravated and obviously not mechanically inclined so I feel patronized.
"Turbo boost & engine tourqe values early & high on overdrive lockout, advised customer to call fords service for reflash to factory updates and specs"
I called Ford and this place is especially difficult to deal with, he said he'd recheck it out but doesn't think there is anything wrong with the truck. I guess the fact that I was getting about 18mpg before they "fixed" my truck and am only getting about 12/13 now is just a figment of my imagination.
basically the mechanic told me they set it for a power mode rather than the factory specs that have a more economical mode for fuel consumption. The dealer acknowledges they reprogrammed the pcm but not that would have such an effect as I've stated. I'm very aggravated and obviously not mechanically inclined so I feel patronized.
Freshman User
Joined: Oct 2007
Posts: 26
Likes: 0
From: Elgin, IL
mileage
thanks for the post, I just found that out from another dealer whom I'll be using now. I'm on the phone with Ford as well. You're right, something else has to be going wrong conincidently around the same time they did the reprogramming that has pulled down the mpg.
I really do like this truck but feel with the issues I'm having it may have not been the best choice.
I pull a 6k horse trailer with it and plan to get a much bigger trailer next year and am concerned that this truck will really have fuel economy issues with it if this isn't resolved.
I may just put it in a different reputable shop to have them check it over and see what they think.
I really do like this truck but feel with the issues I'm having it may have not been the best choice.
I pull a 6k horse trailer with it and plan to get a much bigger trailer next year and am concerned that this truck will really have fuel economy issues with it if this isn't resolved.
I may just put it in a different reputable shop to have them check it over and see what they think.
Senior User
Joined: Jan 2007
Posts: 393
Likes: 0
From: Bountiful, Utah
My Pyrometer reads at idol 400-450, at 65 mph 700-800. I have no chip or programmer. Boost is 0-5psi, peaks 10psi under slight load. I get 15-17mpg highway. Everything sounds normal from what I have been reading in this thread. When I had my truck reflashed at the dealer I had lower MPG. I disconected the battery and let the truck re-learn. I got getter MPG. Just a thought...
Last edited by hangon2me; Oct 18, 2007 at 09:39 PM.
Freshman User
Joined: Oct 2007
Posts: 26
Likes: 0
From: Elgin, IL
re-learn
Forgive my stupid question but would i have to disconnect BOTH batteries and will that negatively impact my remote start/alarm. I'm willing to try it as it seems I am stuck. Husband wants me to trade it in on a dodge/cummins before anything earth shattering happens but I'm not ready to do that yet.
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Hotshot
Joined: Dec 2003
Posts: 15,369
Likes: 121
From: Stuttgart, Ar
Originally Posted by karynzoo
Forgive my stupid question but would i have to disconnect BOTH batteries and will that negatively impact my remote start/alarm. I'm willing to try it as it seems I am stuck. Husband wants me to trade it in on a dodge/cummins before anything earth shattering happens but I'm not ready to do that yet.
Super Moderator
Joined: Jul 2004
Posts: 21,113
Likes: 3,939
From: Ohio
The dealer needs to fix the problem at hand, high pressure oil pump fitting.....they know all about it. Common for a 2005, no start condition when warm, starts when cold. Cat has nothing to do with it......walk softly but carry a big hammer 
Fleet Mechanic
Joined: Nov 2004
Posts: 1,427
Likes: 10
From: Templeton, Massachussetts
Originally Posted by FORDSDOWNER
Verified by dealer, No PCM modifications exist on the truck as of today nor when I purchased it. I've got that in writting now.
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