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07-23-2006, 03:28 PM
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#1
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Established Member
Join Date: Dec 2005
Location: pearce
Posts: 39
M.O.C. #5058
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engine brake
ive been a truck driver for thirty years and i need some info on jake brakes or pac brake's which one is better for my 05 dodge truck with the cummins diesel.
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07-23-2006, 08:37 PM
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#2
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Montana Master
Join Date: Oct 2004
Location: Gardnerville
Posts: 749
M.O.C. #2165
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Strictly speaking, your Dodge can only have a PAC brake, which is an exhaust brake. This type of braking system puts a restriction in the exhaust so the engine has to work against the back pressure.
A true Jake brake involves changing the timing of the valves to turn the engine into a compressor to provide braking action. That pressure is released at the top of the piston travel so that it doesn't push the piston back down. That creates the classic popping sound of the Jake brake.
Dodge didn't warrant the exhaust brake in early models because it wasn't an authorized modification. Newer models can have the exhaust brake installed. If you do a search, you'll find more specifics on when Dodge allowed the exhaust brake, as well as which brakes people have installed and how they like them.
The newer trucks have programming for the transmission that a number of people think eliminates the need for the exhaust brake. There have been several threads on that, too.
Bob
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07-24-2006, 12:20 AM
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#3
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Montana Fan
Join Date: Mar 2006
Location: Manakin-Sabot
Posts: 371
M.O.C. #5540
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I can only comment that when I purchased my 2006 Dodge Ram 3500, the dealer recommended a Jake break. They installed it with the represention that it did not violate the waranty . It works great, coming down fairly steep East Coast hills with the Jake on when I am pulling my 3075RL Montana, I never have to touch the truck breaks.
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07-24-2006, 12:42 AM
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#4
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Montana Master
Join Date: May 2003
Location: New Bern
Posts: 4,294
M.O.C. #311
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My 03 has the dealer installed Jacobs exhaust break, but I have the manual six speed. The warranty issues was with the automatic transmission. I have the 3.73 rear ends and find it works great as long as I go down the hills in the same gear I pulled the hill. I know it makes sense to you truck drivers but some might think it acts like a regular break and it does not. I am glad I have it.
I am looking at the banks upgrade. Their exhaust will not match to my exhaust brake (4" versus 3") opening. They want me to put on their exhaust break. I hope this helps.
Good luck and tow safe.
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07-24-2006, 03:05 AM
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#5
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Montana Master
Join Date: Oct 2005
Location: Missiion
Posts: 983
M.O.C. #4766
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Richard you never mentioned you had the automatic or standard transmission. I did a lot of research as I have a 2005 Automatic. The Exhaust brake will work on the Standard or manual transmission. It will not work on the Automatic. Ok they can put it on. But if you add the additional part that would lock up the torque converter to really make it work, Dodge will void the warranty. In the 2006 Dodge Automatic IT WILL WORK. It all has to do with the computer programing in the dodge and cummins engine. Even after a lot of complaining the cost to change the programing to make it work on the 2005 automatic is prohibitive according to cummins and dodge. Hope this helps. Safe travels John H.
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07-24-2006, 03:14 PM
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#6
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Montana Master
Join Date: Jul 2006
Location: Pasco
Posts: 986
M.O.C. #5972
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I have a F350 7.3L with an automatic tranmission. Is there an exhaust brake that will work on this setup? If so, about how much is it installed?
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07-24-2006, 05:07 PM
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#7
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Montana Master
Join Date: Aug 2004
Location: Cedar Rapids
Posts: 4,876
M.O.C. #1944
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Quote:
quote:Originally posted by MAMalody
I have a F350 7.3L with an automatic tranmission. Is there an exhaust brake that will work on this setup? If so, about how much is it installed?
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I have the Banks Exhaust Brake which works wonderfully for me. I don't know about the other exhaust brakes.
Orv
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07-25-2006, 02:35 AM
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#8
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Montana Master
Join Date: Feb 2005
Location: Pagosa Springs
Posts: 3,711
M.O.C. #3120
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I have a 2006 3500 Dodge Ram with automatic transmission and Cummins 5.9 turbo diesel with 3:73 rear end. I had the Jacobs exhaust brake installed by the dealer, this is the best option bought for the truck!
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