Allison Auto problems?
Laughing Gas
Joined: May 2003
Posts: 1,125
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Allison Auto problems?
ford rancher I already tested my torquesift it won't rev over 3600 the computer will up shift. I pull a 10000lb trailer it works great when decending hills it won't shift down to alower gear untill your tach is at a certain rpm. I love this truck.
Logistics Pro
Joined: Sep 2002
Posts: 4,411
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From: Central KY
Allison Auto problems?
Yeah, I have the 5-speed automatic in my truck. Now, I realize that my transmission is not the TorqShift tranny, but the principle is the same. It does cause acceleration to be much smoother. Overall it does make for a smoother, more comfortable transmission.
However, I do not for a second see how they can claim it saves fuel...since I still ultimately turn the same RPM at highway speed. And also since the gear ratios are closer together, this tranny will downshift more frequently than a 4-speed auto. Granted, I don't ever have 15,000 lb. loads on behind this truck so it's not a problem....just aggravates the heck out of me. But I can tell that if you had a SuperDuty and were towing a really big load, downshifting and causing the engine to hit redline would be a problem that wouldn't surprise me one bit.
I'm going to agree with dman on this one. For a heavy-duty truck application, I would stick with the 6-speed manual. Better gas mileage that way, more power, and you can maintain the RPM you need.
However, I do not for a second see how they can claim it saves fuel...since I still ultimately turn the same RPM at highway speed. And also since the gear ratios are closer together, this tranny will downshift more frequently than a 4-speed auto. Granted, I don't ever have 15,000 lb. loads on behind this truck so it's not a problem....just aggravates the heck out of me. But I can tell that if you had a SuperDuty and were towing a really big load, downshifting and causing the engine to hit redline would be a problem that wouldn't surprise me one bit.
I'm going to agree with dman on this one. For a heavy-duty truck application, I would stick with the 6-speed manual. Better gas mileage that way, more power, and you can maintain the RPM you need.
Posting Guru
Joined: Oct 2002
Posts: 2,498
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From: Raleigh, NC
Allison Auto problems?
I saw a fine example today of lack of gears. I rode in an '02 Nissan X-terra today and it had the V-6 (supercharged supposedly) and a 5 spd manual. In 5th gear it was turning 2500rpm @ 70mph. I believe an extra gear would have helped out the top end and improved the gas mileage as it burned a close to a whole tank of gas in only 270 miles.
As for big trucks like mine, if Ford had a 5 spd auto in '95, I believe that I could hit 14 mpg instead of just 10 with my F-250.
As for big trucks like mine, if Ford had a 5 spd auto in '95, I believe that I could hit 14 mpg instead of just 10 with my F-250.
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Senior User
Joined: Sep 2001
Posts: 353
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From: South Dakota
Allison Auto problems?
Originally posted by MW95F250
I saw a fine example today of lack of gears. I rode in an '02 Nissan X-terra today and it had the V-6 (supercharged supposedly) and a 5 spd manual. In 5th gear it was turning 2500rpm @ 70mph. I believe an extra gear would have helped out the top end and improved the gas mileage as it burned a close to a whole tank of gas in only 270 miles.
As for big trucks like mine, if Ford had a 5 spd auto in '95, I believe that I could hit 14 mpg instead of just 10 with my F-250.
I saw a fine example today of lack of gears. I rode in an '02 Nissan X-terra today and it had the V-6 (supercharged supposedly) and a 5 spd manual. In 5th gear it was turning 2500rpm @ 70mph. I believe an extra gear would have helped out the top end and improved the gas mileage as it burned a close to a whole tank of gas in only 270 miles.
As for big trucks like mine, if Ford had a 5 spd auto in '95, I believe that I could hit 14 mpg instead of just 10 with my F-250.
Posting Guru
Joined: Oct 2002
Posts: 2,498
Likes: 1
From: Raleigh, NC
Allison Auto problems?
The automatic has a safety device in the computer which, if the shifter is put into first, the transmission will shift into 2nd before going in to first. That is what keeps you from blowing the engine.
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