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Old 10-16-2013, 08:37 AM   #1
halfwright
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Superchip on 7>3 Ford superduty

As some of you know, my transmission recently went out. I have used a superchip set on "towing" for 40,000 miles. The new transmission is reset to factory, I think. I also think that the engine has been reset. That reset has lowered my mileage 3 miles to the gallon. I am hesitant to reset everything to the hotter settings if it caused my transmission problems.

Any ideas or experience with superchips?
 
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Old 10-16-2013, 09:27 AM   #2
steves
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Don't believe the chip affected your transmission unless you were hitting it hard with a lot of HP. The trans on the 7.3 was a weak link and failures were not uncommon. Lots of people replaced the trans with a Jasper after market. The 7.3 engine is capable of handling the added HP from a chip.
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Old 10-16-2013, 10:20 AM   #3
Tom S.
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I susoect your mileage difference is from the trans and not the chip (or lack of it).
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Old 10-16-2013, 10:47 AM   #4
Rainer
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Had a Superchips Flashpaq in my late 2006 F-250 6.0 crewcab, shortbed, 4x4, automatic. It did improve performance, but it reduced fuel economy by just a tiny bit. Kept it in "tow safe mode" but in May 2012 the engine went south after just 60K miles. Even with a "premier" extended warranty my out of pocket expenses were two grand. Got everything fixed and immediately traded it on a 2012 F-250 6.7, crewcab, shortbed, 4x4, automatic. Much better truck!

Anyone want to buy that Superchips Flashpaq programmer? PM if interested.
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Old 10-16-2013, 11:42 AM   #5
Trailer Trash 2
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I had the Banks Trans command on my trans and put the bigist Haden trans cooler on I could get in front of the radeator. I had 117K on it and changed the oil every 21K never a problem even after I sold it to its new owner its still working good. I elieve I have to agree with TomS if it was weak ti could cost you milage.
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Old 10-16-2013, 12:21 PM   #6
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You didn't state how many TOTAL miles were on the truck and transmission. I suspect that the tranny was on it's way out anyway even without the chip. If it was mine I would reprogram again.
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Old 10-16-2013, 12:37 PM   #7
halfwright
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Total mileage is 90,000. I did get the transmission hot (according to the ford guage) twice. But that was 10,000 miles before it went out. I have installed an additional cooler.

My current line of thinking is

1. re-program with the chip
2. keep my foot out of it
3. change the transmission fluid any time it over-heats
4. """"""""""""""""""""""""""""" at 30,000 mile intervals
5. change my lifestyle, giving up wild women and drinking, and start praying a lot

There is a 3 year 100000 mile warranty on the new transmission, but I would think using a chip would void that.
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Old 10-16-2013, 12:45 PM   #8
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I'm curious about what kind of mileage was on your truck as well. I had a Superchips 1705 tuner, left it on tow-safe, and had no issue for 7 years till I tried out a Thoroughbred 6 position tuner which I've been running with no issue for the past 2 years. Your tranny rebuild undoubtedly had a new torque converter installed along with the rebuild ... the converter may not have exactly the same stall speed as your old one thus a decrease in fuel mileage. Just throwing out that possibility.
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Old 10-17-2013, 06:48 AM   #9
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I had a trans go out on my 2000 Ford 350 7.3 diesel at about 130,000 miles and I was using a superchip also. One did not relate to the other, it's just a weak link in the 7.3 era. I replaced with a Jasper 3 yr. 100,000 mile warranty and the trans was built by Jasper for my use pulling a 16,000 5th wheel up and down the mountains. So far so good with about 15,000 miles on the new tranny.

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