Uphill Towing during Regen
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Uphill Towing during Regen
Hi All,
Well I am planning my summer travels with my fifth wheel and I was wondering if one of you mechanical-types could answer a question...
If I am towing my fifth wheel up a pretty steep hill and it starts a regen, is there a noticeable loss of power? The mountain I will be climbing is a pretty good climb (which is one of the main reasons I went with this truck) but in reading through some info on the regen process, it leads me to think there mayu be some power loss...hate to get halfway up this mountainside and lose power!
Should I be concerned??
Well I am planning my summer travels with my fifth wheel and I was wondering if one of you mechanical-types could answer a question...
If I am towing my fifth wheel up a pretty steep hill and it starts a regen, is there a noticeable loss of power? The mountain I will be climbing is a pretty good climb (which is one of the main reasons I went with this truck) but in reading through some info on the regen process, it leads me to think there mayu be some power loss...hate to get halfway up this mountainside and lose power!
Should I be concerned??
Elder User
Joined: Feb 2005
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From: N.Ridgeville, Ohio
From personal experience towing a 13K + fifth wheel. We can see the regen via the pre turbo egt as the ET's increase by 300/400 degrees. We did have to back off as the Et's got very high 1300 + and boost wanted to increase but we had no notciable loss of power other than we had to slow down to keep the EGT's within acceptable range. IMO a Pre turbo EGT is a requirement if pulling heavy loads.
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With the trailer on (18,000) going up a steep grade my truck will go into regen and slow down 15 - 20 mph flat on the floor. I have been in the mountains out west running 45 mph flat on the floor. When the truck is not in regen it runs night and day different. The oing alot of regens after it got to about 6000 miles on it. My dealer has been working on this problem for the last 14,000 miles. I can't wait till somebody comes out with a DPF bypass.
08F350 DRW
08F350 DRW
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From: Henderson, NV
Originally Posted by richfaa
From personal experience towing a 13K + fifth wheel. We can see the regen via the pre turbo egt as the ET's increase by 300/400 degrees. We did have to back off as the Et's got very high 1300 + and boost wanted to increase but we had no notciable loss of power other than we had to slow down to keep the EGT's within acceptable range. IMO a Pre turbo EGT is a requirement if pulling heavy loads.
If i am not mistaken, the Ecm will start defueling At 1200 degrees automaticly
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Joined: Feb 2005
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From: N.Ridgeville, Ohio
Originally Posted by SANDDEMON08
I am curious if you are running a tuner, i have towed 12,000 Lbs out of Laughlin NV during the summer 116+ degrees and never had to back out of it. I think its a 6% grade about 20 miles long.
If i am not mistaken, the Ecm will start defueling At 1200 degrees automaticly
If i am not mistaken, the Ecm will start defueling At 1200 degrees automaticly
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Fleet Mechanic
Joined: Aug 2006
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From: Logan, Utah
My truck regened terrible w/7k lbs behind on I70 in Utah. Probably only 35 mph. I yanked the dpf and got a tune and now it flies up that hill. Doesn't even shift at 75 mph.
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Well it seems that this is another of those areas of uncertainty that I seem to fall into! Some controversy here about this regen thing while towing. Since few of you know of the mountain I am facing, it's understandable.
Guess I will find out this summer whether I will lose power on this climb if and when the truck kicks into regen!
BTW, what is a DPF and what does it do? What happens when it's taken off (aside from the warranty thing)?
Guess I will find out this summer whether I will lose power on this climb if and when the truck kicks into regen!
BTW, what is a DPF and what does it do? What happens when it's taken off (aside from the warranty thing)?
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From: Henderson, NV
Originally Posted by 05F350CC
Well it seems that this is another of those areas of uncertainty that I seem to fall into! Some controversy here about this regen thing while towing. Since few of you know of the mountain I am facing, it's understandable.
Guess I will find out this summer whether I will lose power on this climb if and when the truck kicks into regen!
BTW, what is a DPF and what does it do? What happens when it's taken off (aside from the warranty thing)?
Guess I will find out this summer whether I will lose power on this climb if and when the truck kicks into regen!
BTW, what is a DPF and what does it do? What happens when it's taken off (aside from the warranty thing)?
While driving normal the truck is in passive regen which while towing should keep the exhaust hot enough to keep the DPF clean.
You can not take the DPF your truck without re tunning the ECM to turn regen off. If you re tune it, it would smoke a little depending on the tune and you should see better fuel ecomony. There is also the issue of smog, your truck will not pass smog without the DPF. There are loop holes in some states regarding the smoging depending on the GVW rating of your truck.
If you change your exhaust keep all the old parts. The stock exhaust cost about 3,800.00 to replace(dealer price) not includeing labor.
Hope this helps.
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Uphill Towing During Regen - UPDATE
Ok just found out from a relaible source that the mountain I am wondering about (Thompson Pass) is a 7.5 mile pull averaging a 7% grade.
Now with that info and pulling a fiver that is less than 10,000 lbs (that is the GVWR for my fifth wheel which I am certain I am under), do you think I will have a regen during the pull and if so, will I lose any power during it.
How do you think my stone stock F350 CC LB Dually "Tow Twuck" will do on this tug?
Now with that info and pulling a fiver that is less than 10,000 lbs (that is the GVWR for my fifth wheel which I am certain I am under), do you think I will have a regen during the pull and if so, will I lose any power during it.
How do you think my stone stock F350 CC LB Dually "Tow Twuck" will do on this tug?
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Joined: Feb 2005
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From: N.Ridgeville, Ohio
The probabilities that you will have a regen during any pull are slim IF the DPF is operating properly..Again...check your tailpipe..if there is black soot..the DPF is defective..If the DPF is defective the overall performance of the truck will be...real...bad..During a long hard climb you will need to watch your EGT's and boost and you MAY have to back off to keep them within safe limits.
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From: Central Massachusetts
towed about 17k over 2,000 miles this summer and for a total of 3,000 miles never felt it go into regen, For the most part it should be running hot enough, but as you read there are some people that are still going into regen. I wouldn't be too concerened about it. Just found heading up the bigger hills the electric fan would increase rpms and sound like a 747 was landing on your roof. Couldn't be more please towing our 5ver. Just can't wait to go again.
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Originally Posted by richfaa
The probabilities that you will have a regen during any pull are slim IF the DPF is operating properly..Again...check your tailpipe..if there is black soot..the DPF is defective..If the DPF is defective the overall performance of the truck will be...real...bad..During a long hard climb you will need to watch your EGT's and boost and you MAY have to back off to keep them within safe limits.