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 > Is exhaust brake really needed?

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camperfamily

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Posted: 02/28/14 08:37pm Link  |  Quote  |  Print  |  Notify Moderator

Having had a 7.3 and grossing ~17500 I'd do the mod to use the EBPV again. Night and day when you turn it "on". Even with it there were some grades that required heavy brake application. Short, thankfully, but some with slopes in excess of 15%. Going up was 1st heat @2800 RPM.

IMHO you won't regret the small investment for the addition.

DP Tuner used to offer a tune for activating the brake. But there are other (cheaper) ways. I recall on that worked with the cruise switches to activate. I don't recall particulars or name though.


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Terryallan

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Posted: 02/28/14 08:40pm Link  |  Quote  |  Print  |  Notify Moderator

Having driven diesels with out a exhaust brake. I wouldn't have one with out a exhaust brake


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shadows4

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Posted: 02/28/14 09:21pm Link  |  Quote  |  Print  |  Notify Moderator

Thanks for all the replies. I will probably be doing the mod to the EBPV. If I can do it for $50 bucks, it seems a no brainer. Again thanks, John


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laknox

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Posted: 02/28/14 10:18pm Link  |  Quote  |  Print  |  Notify Moderator

shadows4 wrote:

Morning all,
The wife and I where discussing vacation plans. We were talking about places to go on vacation. Colorado came up. We haven't been out west in quite a while. Never been there with a TT or 5th wheel. We currently have the truck and 5er in Sig. The truck is stock. Is an EB really necessary to go to the mountains?
I have been researching a mod to use the exhaust back pressure valve as an exhaust brake. Has anyone here done this?
We haven't decided where we will go on vacation this year, but if we go to mountains I want to be ready.
Thanks, John


John, I'm replying without reading the other responses. That said, you're towing a FW that a 2500/250 would easily handle. So long as you don't hit a downhill at stupid speeds, you really don't need an exhaust brake; the tranny should auto-down just fine. My '02 D'max does pretty well with my FW, though I am =very= aware of the downgrades on the usual routes, here in AZ and CA, that I travel. Unless I'm really heavy, I have no problem holding < 65 mph with only an occasional brake. Unless you're on some =really= extreme grades, IMO, you don't need the exhaust brake. Now, if you want to spend the $$, it certainly can't hurt! :-)

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Dave H M

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Posted: 03/01/14 05:07am Link  |  Quote  |  Print  |  Notify Moderator

Me Again wrote:

Ivylog wrote:

The OP does not have the "Tow Haul" option. You might want to reconsider your answer.


As long as he finds an after market device to lockup the TC he will be fine. Chris


[emoticon] I hope the OP can sort his way thru info such as this. If his TC is unlocking going down hill something is wrong. My 99 stayed locked up.

Rancher Will

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Posted: 03/01/14 07:57am Link  |  Quote  |  Print  |  Notify Moderator

For many years we drove our light truck without exhaust brakes (I don't think they were invented yet). When Banks offered to sell Exhaust brakes I started installing Exhaust Brakes on our Ranch Trucks since we have always had Jacobs Engine Brakes on our Semis.

We live and drive in the Montains of Colorado so we have Exhaust brakes on all of our light tucks, Dodge 250's and 350'. All of our trucks have Cummins Engines and our Dodges pull ranch trailers loaded sometimes to 20,000 pounds. So, yes you can drive and pull an RV without Exhaust Brakes in the mountains but you will be happy if you have Exhaust Brakes for safety, less wear on wheel brakes and comfort going down long mountain grades.

MrVan

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Posted: 03/01/14 09:32am Link  |  Quote  |  Print  |  Notify Moderator

We don't have exhaust brakes on our truck but would have it on any truck we purchased in the future. However, one can adjust your driving habits to fit the equipment you do have. On 6% down grades on the Interstates I just slip the truck into 2nd gear at the top of the grade and let the engine compression hold the load at 45 MPH. A form of a compression brake. On a long downhill grade of 6% I may have to hit the brakes two or three times for short periods to hold the 45 MPH maximum. I think it is safer than going down hill at a faster speed with compression brakes since the margin of error is less. YMMV.

Me Again

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Posted: 03/01/14 09:45am Link  |  Quote  |  Print  |  Notify Moderator

MrVan wrote:

We don't have exhaust brakes on our truck but would have it on any truck we purchased in the future. However, one can adjust your driving habits to fit the equipment you do have. On 6% down grades on the Interstates I just slip the truck into 2nd gear at the top of the grade and let the engine compression hold the load at 45 MPH. A form of a compression brake. On a long downhill grade of 6% I may have to hit the brakes two or three times for short periods to hold the 45 MPH maximum. I think it is safer than going down hill at a faster speed with compression brakes since the margin of error is less. YMMV.


I do not know what you drive, but stock my 2001.5 Dodge/Cummins/Auto would not lock the TC going down hill. Even with a manual, the Cummins engine just free wheels going down grades. For some unknown reason the Ford and GM V8's seem to hold back better with grade braking. I could fool the 47RE to lock the TC at the top of the hill with the cruise control, but it just was not effective.

I would not tow a mid to larger 5th wheel without an exhaust brake.

Chris


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cummins2014

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Posted: 03/01/14 10:34am Link  |  Quote  |  Print  |  Notify Moderator

Me Again wrote:

MrVan wrote:

We don't have exhaust brakes on our truck but would have it on any truck we purchased in the future. However, one can adjust your driving habits to fit the equipment you do have. On 6% down grades on the Interstates I just slip the truck into 2nd gear at the top of the grade and let the engine compression hold the load at 45 MPH. A form of a compression brake. On a long downhill grade of 6% I may have to hit the brakes two or three times for short periods to hold the 45 MPH maximum. I think it is safer than going down hill at a faster speed with compression brakes since the margin of error is less. YMMV.


I do not know what you drive, but stock my 2001.5 Dodge/Cummins/Auto would not lock the TC going down hill. Even with a manual, the Cummins engine just free wheels going down grades. For some unknown reason the Ford and GM V8's seem to hold back better with grade braking. I could fool the 47RE to lock the TC at the top of the hill with the cruise control, but it just was not effective.

I would not tow a mid to larger 5th wheel without an exhaust brake.

Chris



One of the rare times I can agree with MrVan, having the same truck , I come off steep hills in exactly the same way with no problems.

Atom Ant

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Posted: 03/01/14 10:37am Link  |  Quote  |  Print  |  Notify Moderator

Don't want to get in a brand slam, because each use their own technology, but I've always understood that Dodge benefits the most from a brake.

This is our 2001 7.3 Ford on its way over Wolf Creek as it did 3 times a year. Before I ever tried I figured I should get a brake, but it did much better than I originally expected so I never did install a brake and never missed it.


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