Skip to main content

Topic: Retarder died in heavy rain (Read 884 times) previous topic - next topic

0 Members and 1 Guest are viewing this topic.
  • Pyolet
  • [*][*][*][*]
Retarder died in heavy rain
Left Atlanta this morning and an hour after departure the retarder started failing.  Worked okay for the first few stops but noticed that it took the full throw of 6 clicks to get any braking action.  Didn't notice is the retard light was coming...

Guests must Login or Register to view full posts.

Re: Retarder died in heavy rain
Reply #1
I love the retarder too but I would use extreme caution using retarder in rainy or snowy weather.  There is potential to lose traction on rear wheels causing loss of control.

  • John44
  • [*][*][*][*][*]
Re: Retarder died in heavy rain
Reply #2
Make sure the trans fluid isn't low,is easy check.

Re: Retarder died in heavy rain
Reply #3
Pyoler, not sure why your retarder is not working, but so others so not use retarder in the rain:

Recently when buying 22.5 tires for a commercial truck I own, the truck tire shop manager asked if I drove much in the rain, showed me data on tire...

Guests must Login or Register to view full posts.

  • oldguy
  • [*][*][*][*][*]
Re: Retarder died in heavy rain
Reply #4
That's why I like to control the retarder and not have it come on with the throttle. I use the retarder in the snow and just like brakes
very softly.

Re: Retarder died in heavy rain
Reply #5
That's why Jakes get a BIG plus. I keep it on all the time and am the one that downshifts, not the computer.

Pierce

  • Pyolet
  • [*][*][*][*]
Re: Retarder died in heavy rain
Reply #6
Should have labeled the thread "Retarder died AFTER DRIVING in heavy rain".  I did read the owners manual and am from Montana...know better than to bypass the anti-lock system on slick roads, but also know that ABS on icy roads is not the catch...

Guests must Login or Register to view full posts.

Re: Retarder died in heavy rain
Reply #7
Glad your back to normal, let us know if you find anything which stands out so that the rest of us can take preventative action.

Larry

  • Pyolet
  • [*][*][*][*]
Re: Retarder died in heavy rain
Reply #8
Update.  Retarder continued to intermittently fail (no light, no function) after I got home.  I pulled every single connector I could find and applied oxy-guard to the contacts...no change. 

Pulled the following codes from the Allison display: ...

Guests must Login or Register to view full posts.

Re: Retarder died in heavy rain
Reply #9
If it was in the air passages it is desiccant from the dryer.

Re: Retarder died in heavy rain
Reply #10
And, if it got there, likely in many other places in your suspension and brake system!

Open the wet tank drain and tell us what you get (driver's side just in front of the rear wheel).

  • Pyolet
  • [*][*][*][*]
Re: Retarder died in heavy rain
Reply #11
My question was facetious...discovered the dreaded white powder blowing out of the wet tank drain a year ago.  Have been chasing the desiccant gremlins since. 

And, if it got there, likely in many...


Guests must Login or Register to view full posts.

Re: Retarder died in heavy rain
Reply #12
My question was facetious...discovered the dreaded white powder blowing out of the wet tank drain a year ago.  Have been chasing the desiccant gremlins since.
In that case one more gremlin gone.

Guests must Login or Register to view full posts.

  • hdff
  • [*][*][*][*][*]
Re: Retarder died in heavy rain
Reply #13
Can you post where this solenoid is located



Keith

  • Pyolet
  • [*][*][*][*]
Re: Retarder died in heavy rain
Reply #14
Keith, it's the solenoid on the rear of the retarder accumulator...lower passenger side of the engine on mine.  One air line and a 2 pin connector.  Here's the link on the old Beamalarm site that I referenced.  I also needed to lower the aft end...

Guests must Login or Register to view full posts.

Re: Retarder died in heavy rain
Reply #15
Can you post where this solenoid is located



Keith

Are you having the same trouble?

Ours will work one time then the next it won't. Sometimes after we stop at a rest area and take back off it won't work....

Guests must Login or Register to view full posts.

  • hdff
  • [*][*][*][*][*]
Re: Retarder died in heavy rain
Reply #16
Gonna check it out but the cheap replacement on eBay listed above is sold out

  • Pyolet
  • [*][*][*][*]
Re: Retarder died in heavy rain
Reply #17
Some previous forum comments mention taking the solenoid off and cleaning it with good results.  You could try that first.  I opted to replace it since I got electrical fault codes and luckily found the cheap part.

Re: Retarder died in heavy rain
Reply #18
Some previous forum comments mention taking the solenoid off and cleaning it with good results.  You could try that first.  I opted to replace it since I got electrical fault codes and luckily...


Guests must Login or Register to view full posts.

  • Pyolet
  • [*][*][*][*]
Re: Retarder died in heavy rain
Reply #19
With key on, parking brake set, press up and down arrows simultaneously, twice.  Here's the Allison link:

http://www.mwrench.com/barth/Allison/Allison%20codes.pdf

How did you get fault codes?


Guests must Login or Register to view full posts.

  • MAZ
  • [*][*][*][*][*]
Re: Retarder died in heavy rain
Reply #20
Gonna check it out but the cheap replacement on eBay listed above is sold out
ALLISON VALVE ASSEMBLY-SOLENOID, RETARDER 29557354 | eBay

Guests must Login or Register to view full posts.

Re: Retarder died in heavy rain
Reply #21
With key on, parking brake set, press up and down arrows simultaneously, twice.  Here's the Allison link:

http://www.mwrench.com/barth/Allison/Allison%20codes.pdf

Thanks

Guests must Login or Register to view full posts.

  • hdff
  • [*][*][*][*][*]
Re: Retarder died in heavy rain
Reply #22
ALLISON VALVE ASSEMBLY-SOLENOID, RETARDER 29557354 | eBay
I said cheap replacement like the one pyolet got above for 100 bucks..... I saw this $357 one

Guests must Login or Register to view full posts.

  • Pyolet
  • [*][*][*][*]
Re: Retarder died in heavy rain
Reply #23
I waited for 3 months before the $100 unit popped up.  Just gotta be patient and keep checking eBay and Amazon. 

I said cheap replacement like the one pyolet got above for 100 bucks..... I saw this...


Guests must Login or Register to view full posts.