treck
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treck
I have A E350 15 passager 1999 with aV10 and tow a 36ft travel traler 10,000 lbs, van has 91000 mil on it,
used it to pull camper this week end NOT very inpressed with unit compared to my old 1993 E350 460 not evon closs to as mutch power on hills of NE IA
on hills with 6% grade hills 1 to 2 miles long 15 mile a hour compared to the 460 with 280,000 miles on it
Any sugestions I did replace air filter Will check on gear rato and we got about
7mpg
with out towing we get 13 mpg
Any ideas help
used it to pull camper this week end NOT very inpressed with unit compared to my old 1993 E350 460 not evon closs to as mutch power on hills of NE IA
on hills with 6% grade hills 1 to 2 miles long 15 mile a hour compared to the 460 with 280,000 miles on it
Any sugestions I did replace air filter Will check on gear rato and we got about
7mpg
with out towing we get 13 mpg
Any ideas help
Postmaster
Joined: Nov 2001
Posts: 4,742
Likes: 8
From: OK
Welcome to the site! 
Scroll down the first page of this forum a little and check out THIS THREAD for suggestions on improving tow performance.
Scroll down the first page of this forum a little and check out THIS THREAD for suggestions on improving tow performance.
Tuned
Joined: Jun 2003
Posts: 465
Likes: 53
From: Connecticut
It would be highly unusual for an E-350 15-pass to be delivered with the 4.10 final drive (only 3.73 and 4.1 was offered). I tow a 24' 7000-enclosed trailer (a big very un-aerodynamic rectangular box) behind my '99 and it was "adequate" with the stock 3.73 L/S; I drove it from CT to Atlanta last November and averaged 7.2 mpg (I get 13.5 average without a trailer). The only time I got behind was on the serious grades, but I was able to maintain 50-ish mph flat to the floor even on the worst of them.
I swapped over to a 4.30 Yukon gear set this Spring; while the towing is not incredible, it's more than adequate and worth the expense for the final drive. Flats and light grades are no problems, but you'll be on the loud pedal and down-shifting for the steeper rolling hills and grades.
Don't forget: not only is the '99 engine the older-gen with only two valves, the van comes derated even further. Unless you do a lot of mods you'll never see the power and torque that the pickups trucks have. Even the latest E-350 engines have a 50 hp/ft-lbs deficit. But, if you want a van and you gotta tow...
I swapped over to a 4.30 Yukon gear set this Spring; while the towing is not incredible, it's more than adequate and worth the expense for the final drive. Flats and light grades are no problems, but you'll be on the loud pedal and down-shifting for the steeper rolling hills and grades.
Don't forget: not only is the '99 engine the older-gen with only two valves, the van comes derated even further. Unless you do a lot of mods you'll never see the power and torque that the pickups trucks have. Even the latest E-350 engines have a 50 hp/ft-lbs deficit. But, if you want a van and you gotta tow...
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
Likes: 423
From: Long Island USA
Just to clear some things up. The vans came with the two-valve in '98 and late '97. They were rated only 5 ft/lbs-HP less than the pickups in '99. The 2000's saw the uprated 2-valver, still only about 5 ft/lbs off from the pickups.
As of 2005, the E-series still gets the 2-valver, the pickups get the 3-valver, and THAT is about 50 HP difference.
As of 2005, the E-series still gets the 2-valver, the pickups get the 3-valver, and THAT is about 50 HP difference.
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