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[Thread Backward] Re: Mileage/Power Improvement After BreaMsg # 5012 of 8004 on Powerstroke Diesel Conference (1)To: All, From: Mike McLaughlin Time: Monday 01-26-98, 12:29 pm Well - THAT was a very intersting thread indeed. I was very excited to begin reading the thread after being out of town for 4 days and seeing lots of replies. Anyway - I'm still amazed that everytime this type of discussion is brought up everyone (almost) seems to focus in on the mpg. I told Ford last week that I didn't care about the mpg if it had the power it is supposed to. But, Dave and I seem to have both low power/mpg and it's almost surely related. If not - we're still down on power. For instance, if I nail it on the highway at 65 it takes over 10 seconds to pickup 10 miles per hour. Pulling - well, hell I can't even pull a 9k load. Locked in 3rd gear, it still slows down on highway grades. That is my major problem - and if fixing the power problem fixes the mpg also - good. If not, I can live with lower mpg than normal. Something is definetly wrong though - I have a little over 2k miles on it and get 6 mpg pulling a 3k trailor on the highway in Texas (no hills!). I just think it's low mpg because it has no power. What I'm doing is going thru HELL trying to get Ford to ACTUALLY work on the engine to see what's wrong. They still think 'cause their computer says everything is okelydokely than that's that. Maybe I need to rough 'em up a bit, eh? Mike McLaughlin ps to Jason - Please bear with us here - maybe we're just going thru growing pains. The board is really growing - It's really getting better all the time. More neat-o stuff like that article from a member here and the navistar dude will be great. As always thanks to all who continue to offer help. On Sunday 01-25-98, 02:12 am, Dave said: -Folks, - -Just picked up a new '97 F350 CC PSD, E4OD, 4x4, -4.10 gears. Sadly, it seems to both have less power -and get poorer mileage than my '94 F250 SC IDI -factory turbodiesel (w/ aftermarket turbine housing -& exhaust), 4x4, E4OD, 4.10. - -On other PSDs that I've driven, when tromping from -a standing start, you can see the engine rev to the -torque converter's stall speed, and then, over a -half second or so, feel the boost come on, via the -seat of your pants, with a nice satisfying rush. -This one is much less distinguished in its coming -onto the boost. - -I don't hear any kind of rushing air sound, so I -don't think that the exhaust butterfly is sticking -shut. - -At about 175 miles, took it out solo, with an empty -bed, for about 200 miles, out and back, on terrain -that gains elevation (1-2000 feet) fairly smoothly -over the hundred mile radius, starting pretty near -sea level. I got what I consider to be a miserable -16.1 MPG, having filled the tank to the brim both -before and after the run. - -On some steeper hills around here, it would barely -pull beyond 70 MPH, taking 5-10 seconds to gain -each additional 1 MPH. My recollection of my IDI is -that it accelerated in that situation at least -twice as fast. - -So, my questions to y'all are: Is this typical -performance? Anybody else disappointed? Any -suspicions as to what's up? How much improvement -can I expect as the engine breaks in, and how long -will that be? - -TIA, -Dave Replies to this message:
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