Have problems with my V10! need help
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Have problems with my V10! need help
I'm pulling a toybox (loaded at about 11,500 lbs) with my 99 F350 4x4 V10 dually. Going up hill the RPM goes from 2500 to 5000+ plus my mileage is probably 6 or 7 mpg. I do not have a lift but I do have a roof rack with 3 off-road lights. I put a magnaflow air system, it help but i'm getting a very lousy mileage and not enought power. Does anybody have a suggestions? I appreciated all comments. Thank you!
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my main concern is not really the mileage but the power problem. Why do I jump from 2000 rpm to 5000+ when going up hill (not a big hill) just want to know if is a transmission problem or the v10 doesn't have power?
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From: Colville
I also pull a toy hauler. The weight is not the only thing holding you back. The campers are very tall and the wedge shape of the roof makes for a vacume behind the camper. I'm sure you have noticed how above 50 mph you can go down a 5% grade and not use the brakes. I am building an air foil to bolt on the roof at the back to shoot air down behind the camper. I think with some experimenting I can help the air drag problem and make the camper easier to pull.
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From: Idaho
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Post Fiend
Joined: Jun 2003
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From: NE Texas
Originally posted by cheechf350 dually
No! is not downshifting. What is you MPG when pulling your toy box. I'm considering getting a Diesel. Would you guys recommend a diesel or not.
No! is not downshifting. What is you MPG when pulling your toy box. I'm considering getting a Diesel. Would you guys recommend a diesel or not.
I can't figure why your RPM's jump so high without downshifting?
If you towed that weight regularly, a PSD would be in order.
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From: Colville
Mine is a 24ft Ragen built by National RV out of California.
Freeway driving at 60mph It gets around 9mpg leaving it in third gear.
I live in the Northwest where if your not pulling a hill your probably going down one.
If I want to go 70 mph it will cost Me another 2 mpg.
3.73 gears, 4X4, extra cab, camper fully loaded
Freeway driving at 60mph It gets around 9mpg leaving it in third gear.
I live in the Northwest where if your not pulling a hill your probably going down one.
If I want to go 70 mph it will cost Me another 2 mpg.
3.73 gears, 4X4, extra cab, camper fully loaded
Junior User
Joined: Dec 2001
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From: US
You said your F350 wasn't downshifting, but you didn't say if it was a manual or A/T. Since an A/T would downshift under such a load if it needed to, it sounds like you must have a manual transmission. If you see the RPM go up and the truck doesn't accelerate, I would guess that you have a clutch that is slipping. Fixing the clutch would fix the problem.
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Joined: Aug 2002
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From: Upstate NY
I just pulled my 26 foot Sprinter (7800 lbs empty) up I-87 in New York up to exit 26 and went over tongue mtn..........02 f350, v10, auto, 3:73's.......2nd, 4300 RPM'S + THEN SOME.........the grade is known as the "stairway to heaven" windy curvy and steep for 9 miles.....35 to 45 mph and screaming all the way........the v10 loves high revs......
Dan / ft
Dan / ft
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From: Texas
cheechf350dually:
I had an '02 V10, auto, 4x4 with 4.30 gears. I would pull a 9000# trailer very nicely, but never got over 9 mpg, usually 6-8mpg. With the 29 gallon tank, it was a real hassle to keep stopping for gas. Solution? Bought an '04 exact same truck with a 6.0 and 3.73 gears--now I'm getting 10-11 mpg on fuel that is 10-30 cents/gallon cheaper.
It still isn't that great between fule stops, but 250 miles/tank is sooooooooo much better than 150 miles/tank. Solo, where I do the most driving, is 16-18 mpg.
Go to the 6.0, you won't regret it.
I had an '02 V10, auto, 4x4 with 4.30 gears. I would pull a 9000# trailer very nicely, but never got over 9 mpg, usually 6-8mpg. With the 29 gallon tank, it was a real hassle to keep stopping for gas. Solution? Bought an '04 exact same truck with a 6.0 and 3.73 gears--now I'm getting 10-11 mpg on fuel that is 10-30 cents/gallon cheaper.
It still isn't that great between fule stops, but 250 miles/tank is sooooooooo much better than 150 miles/tank. Solo, where I do the most driving, is 16-18 mpg.
Go to the 6.0, you won't regret it.