Jake Brake Problem

[Gregory OConnor]

tPS and rpm I dont believe make the jake (engine brake) inoperitive.
I think the switch at the pedal sends the signal (you can run the
Engine brake with idle turned up) If some rug lint gets on the pedal
switch or a floor mat gets atop the pedal, the pedal input to the
computer is that the driver wants to propell so it shuts down the
jake. On our '04 C15/Cat hydroseeder you some times have to pounce
down on the pedal and back up to return the pedal to sound the
jake. I also had some problem with a material trailer the seeders
pull not allowing the jake to run???? I think the brake lights or
wire held the issue, is the problem while you pull a toad???

Have you ever done a check on the diaphram for the emergancy
brakes. Pressurize the tanks ;Shut down the engine; chock the
tires ;release the parking brake. I had an old Benz Cabover with an
exhaust brake that failed because there was a switch on the
parkbrake and the brake was liftet slightly?????

--- In WanderlodgeForum@yahoogroups.com, "Johnny M Slone"
wrote:
>
> I do not think it would be the throttle position sensor because
the
> trans down shifts. Is my thinking correct on that.
>
> Would a Pro Link be able to help me pinpoint the trouble. Does
the
> trans and the DDEC share the same test point for the Pro Link. I
only
> know of one plug which is by the drivers left knee.
>
> I'm finding that my old 84 PT35 systems was more on my level!
>
> Johnny M Slone
> Pikeville, Ky
> 98 LXI
>