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Topic: Williams throttle. (Read 864 times) previous topic - next topic

Williams throttle.

Does anyone have a clue were to get the electronic throttle control serviced? The company that made it sure doesn't.
Thanks
'02 U295 36'
Build #5937

 SKP#104358
Motorcade#17428

Re: Williams throttle.

Reply #1 –
Tom, can you tell us the problem you are having,it could also be the engine control unit.
The selected media item is not currently available.Bill&Doris 97 U270 36'
University of Parris Island Class of 66
Semper Fi  Build# 5174 MC#17094

Re: Williams throttle.

Reply #2 –
Its the cruise control part of it. It won't activate, set or resume.
'02 U295 36'
Build #5937

 SKP#104358
Motorcade#17428

Re: Williams throttle.

Reply #3 –
did you check the fuse?
1994 U225
build #4514

Re: Williams throttle.

Reply #4 –
I can't find a fuse, I did replace the relay, but that didn't help
Thanks
'02 U295 36'
Build #5937

 SKP#104358
Motorcade#17428

Re: Williams throttle.

Reply #5 –
This may be a stupid question but the Allison retarder switch and joy stick are not on are they, as if so it may override the cruise as mine does!!
John H
Coachless, now use aircraft. 2003 Ford Travelair TC280 class C. Super shape. Just for 1 yr .
1994 Ford E350 ClassC,total renovation inside and out. Now sold.
2000 U295  36' Cummins 350 c/w Banks Stinger, Resonator upgrade,Solar, LED lites.Residential fridge with slide out pantry. Build 5674. Sold
ex 92 GV 022C ored Cummins. Sold
ex 95 GV240 cat 3116. Sold
2017 Mini cooper s & 2016 land Rover LR2 HSE  LUX.
jhaygarth@aol.com    SKP #130098
treat everyone as you would like to be.

Re: Williams throttle.

Reply #6 –
My cruise control worked when the retarder was switched on, but didn't come into play until I let the throttle close.
I did try the cruise with the retarder off, but it still wouldn't engage.
Thanks for the hint.
'02 U295 36'
Build #5937

 SKP#104358
Motorcade#17428

Re: Williams throttle.

Reply #7 –
Tom, if you can drive the coach,the throttle is working,if not it could be the ECU, I think you will find the problem with Cruise Control to be in the Smart Wheel or the Smart Wheel control.
 Vehicle Improvement Systems for tech help  1-877-395-7250
The selected media item is not currently available.Bill&Doris 97 U270 36'
University of Parris Island Class of 66
Semper Fi  Build# 5174 MC#17094

Re: Williams throttle.

Reply #8 –
Thanks a heap Bill. I can still drive the coach.I'll call the number you suggested on Monday.
Thanks again.
'02 U295 36'
Build #5937

 SKP#104358
Motorcade#17428

Re: Williams throttle.

Reply #9 –
I am confused, am I to understand that the cruise control can not be used when the transmission retarder switch is turned on?

I thought that the retarder was disengaged when the cruise control was on not the other way around. With my Jake Brake retarder, the Jake is turned inactive as long as the cruise control is engaged. That way I can coast down hill reducing fuel consumption. As soon as the service brake is touched, the cruise turns off and the retarder is reengaged helping to slow the coach down. It doesn't make sense to me that you can't use the cruise control when the transmission retarder switch is in the on position.
The selected media item is not currently available.Kent Speers
Locust Grove, OK
1993 U300 SSE 40' (Restored at FOT 2009) Build 4323
720 watts Solar
6V92TA DDEC Silver Engine
2014 Subaru Outback

Re: Williams throttle.

Reply #10 –
Kent,

My experience with cruise control and retarder interaction is described here: No Brake Lights. The thread also contains experiences from other folk.

We run with the retarder switch on all the time, unless road conditions dictate that it be turned off. We also engage cruise control most of the time. The functions work fine together. We normally leave the joy stick on the "Off" position. The retarder engages with the service brake. We use the joy stick for special circumstances, such as a long steep descent.
J D Stevens
1997 U295 CAI 36' Build #5085
2002 Subaru Outback
Motorcade 16869
Bellville, TX

Re: Williams throttle.

Reply #11 –
Our retarder workers just like JD said. I set it for 65 and it works fine...until...what the heck we're slowing down! Oh yeah, I used the retarder and forgot to set the joy stick off; cruise closed the throttle on that little down grade and engaged the retarder which turns the cruise off. Darn it will I ever learn??? :headwall:
Dick, '03 U320 40' Tag, 2 slides, Coach #6075
Full Timers
2009 Honda CR-V

Re: Williams throttle.

Reply #12 –
Dick, a switch can be put in to optionally not turn on brake lights with retard, which will prevent cruise from turning off on that little down grade.

Re: Williams throttle.

Reply #13 –
Well I'll be. Is that described somewhere on the forum?
Dick, '03 U320 40' Tag, 2 slides, Coach #6075
Full Timers
2009 Honda CR-V