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Jake Brake

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7 replies to this topic

#1 classicmouser



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Posted 20 May 2013 - 07:55 PM

I just put a deposit down on a 2001 Featherlight Vantare 45ft tag.

It has the DD60 with Allison 6 speed.


During the test drive I checked the jake on both low and high setting and while the dash would indicate it was working I did not feel the deceleration I was expecting.


I'm trading a Monaco DP with an exhaust brake and it seemed to have better deceleration.


I have read that the engine/trans affect of the jake should work better than my old exhaust brake but it did not seem that way.


The dealer told me that it was likely programmed by Allison for 4th gear but could not confirm or that it was working correctly but offered to check codes but told me not to expect a very noticeable deceleration. It does not seem right to me.


Should I expect to see a noticeable deceleration and if so would it only be at certain speed/gear etc?

I have no experience with a jake or a Prevost.

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Posted 21 May 2013 - 09:40 PM

You haven’t signed the papers and taken delivery so tell him you want it fixed or the cost of replacement taken off the price. I think it should work at least as good as your Monaco and maybe better on the high setting.


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2003 Bounder 38N
5.9 Cummins
Allison 3000MH tran.
Towing a 2014 Honda CRV with a blue Ox tow bar

A man who carries a cat by the tail learns something he can learn in no other way.

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#3 Shields


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Posted 23 May 2013 - 10:41 PM

My experience has been that a Jake works as least as noticeably, if not more so, than an exhaust brake. You might try having someone drive to coach past while you're on the sidewalk. If the Jake is operating, you will hear it. Also, since this is an expensive repair, getting a qualified mechanic to verify the Jake's operation would seem prudent.

Gook luck,

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Tim and Beth Shields
40' Monaco Dynasty
Orange County, California

#4 DickandLois


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Posted 24 May 2013 - 06:02 AM

This link covers the operation and use of Jake braking. Primarily on big rigs, but the same operation and application applies to RV's.





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#5 jleamont


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Posted 06 June 2014 - 01:45 PM

Our's has a two stage jake brake and it is very strong on both settings, on an 8% grade it will slow us down too much and I find myself feathering the accelerator pedal to shut it off. you might want to get that checked out prior to purchase.

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2002 HR Imperial 40PKD. Cummins ISL400

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#6 mpierce


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Posted 06 June 2014 - 07:42 PM

Demand that it be checked out by a DD certified shop.  If they say it is working, then it is.  But I doubt it.  There should be a noticeable slow down.

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#7 BillAdams


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Posted 06 June 2014 - 08:09 PM

You do see that this was a post from May of 2103, right?

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#8 jrwitt


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Posted 06 June 2014 - 08:59 PM

2103? That's pretty amazing!

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