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Cruise Control [message #153045]

Thu, 15 December 2011 11:36

Carl S.

Messages: 4186
Registered: January 2009
Location: Tucson, AZ.

Karma: 13

Senior Member

Even after replacing the transducer with a shiny rebuilt one, from Applied GMC, I am still having problems with my factory cruise control. It definitely needed the transducer, but it still will not engage properly. I have checked the brake switch, and will take another look at it, but I think the problem is in the actuator switch in the turn signal lever. I have a "tester" that I borrowed from my mechanic friend, and the next time I drive the coach, I will plug it in and see if that fixes the problem.

What it is doing is this: It will engage when I push the button in part way, but as soon as I let it out all the way, it disengages again. Am I barking up the wrong tree here? I talked to Nick at Applied and he didn't know of a source for the switch. My mechanic found a listing for them but they are very expensive. If anyone here on the list has a good switch that you are not using, because you have converted to the Rostra, I would be interested in acquiring it from you.

Thanks

Carl Stouffer '75 ex Palm Beach Tucson, AZ. Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member

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Re: Cruise Control [message #153050 is a reply to message #153045]

Thu, 15 December 2011 11:47

captjack

Messages: 271
Registered: February 2010
Location: Sebastopol, California

Karma: 1

Senior Member

When you release the switch, the solenoid in the transducer holds up through a 50 ohm resistance wire on the "hold" lead into the transducer. If that lead was broken, it would exhibit the conditions you described. There is a checkout procedure in the cruise control manual on the bdub site you might want to investigate. I found it very useful when I had problems with my speed control.

Jack Christensen - K6ROW, '76 Glenbrook/Clasco - "The Silver Bullet", Sebastopol, CA

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Re: Cruise Control [message #153054 is a reply to message #153045]

Thu, 15 December 2011 12:24

Bob de Kruyff

Messages: 4260
Registered: January 2004
Location: Chandler, AZ

Karma: 1

Senior Member

Carl S. wrote on Thu, 15 December 2011 10:36

You really need to depress it all the way to set the speed. Also, if you release the button too quickly it will not engage. When you release the switch button it is really out of the system at that point so it doesn't sound like that's the problem. Does your dash indicator work so you can "track" what it is trying to do?

Bob de Kruyff
78 Eleganza
Chandler, AZ

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Re: Cruise Control [message #153059 is a reply to message #153054]

Thu, 15 December 2011 13:23

Carl S.

Messages: 4186
Registered: January 2009
Location: Tucson, AZ.

Karma: 13

Senior Member

[quote title=Bob de Kruyff wrote on Thu, 15 December 2011 11:24You really need to depress it all the way to set the speed. Also, if you release the button too quickly it will not engage. When you release the switch button it is really out of the system at that point so it doesn't sound like that's the problem. Does your dash indicator work so you can "track" what it is trying to do?[/quote]

I understand how the system is supposed to work. If I depress the button all the way and release it slowly, I can feel the cruise control take over the gas pedal at some point. it will stay engaged as long as I keep my finger on the button and partially depress it, but will disengage when I release all pressure on the button. I can then get it to re-engage by depressing the button partially again but, again, it will disengage as soon as I release the switch completely.

I will look at the manual and maybe check the "hold" wire, but It will sometimes engage, and stay engaged, if I release the button slowly enough. Actually, it USED to behave that way, and did, on the way to last weekend's Saguaro Jetset rally, but it would not stay engaged on the way home. That is what leads me to believe it is a faulty switch.

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Re: Cruise Control [message #153062 is a reply to message #153045]

Thu, 15 December 2011 13:35

JohnL455

Messages: 4447
Registered: October 2006
Location: Woodstock, IL

Karma: 12

Senior Member

On that old style (one button) stalk is the switch out at the end near the button? Could you spray some Caig Deoxid D5 in there to clean and lubricate the contacts, if that is the problem. On the old one button type isn't it:
press to set
hold to accel
press to cancel?
If so, then a bad switch may be canceling it after setting it? Thinking out loud here and don't have mine to look at. Darn the winter!

John Lebetski
Woodstock, IL
77 Eleganza II

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Re: Cruise Control [message #153068 is a reply to message #153062]

Thu, 15 December 2011 13:53

Bob de Kruyff

Messages: 4260
Registered: January 2004
Location: Chandler, AZ

Karma: 1

Senior Member

JohnL455 wrote on Thu, 15 December 2011 12:35

Actually the original stalk/button has all of the same functions as the newer resume type except for the on off switch. I modified my system to a resume type without replacing the stalk.

Bob de Kruyff
78 Eleganza
Chandler, AZ

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Re: Cruise Control [message #153072 is a reply to message #153068]

Thu, 15 December 2011 14:06

Carl S.

Messages: 4186
Registered: January 2009
Location: Tucson, AZ.

Karma: 13

Senior Member

Bob de Kruyff wrote on Thu, 15 December 2011 12:53

JohnL455 wrote on Thu, 15 December 2011 12:35

Actually the original stalk/button has all of the same functions as the newer resume type except for the on off switch. I modified my system to a resume type without replacing the stalk.

This must be the 'old - old' style. The 'switch' I'm referring to is the button in the end of the stalk. There IS no separate switch I did spray some CRC contact cleaner into the button while depressing and releasing it, but it didn't seem to help.

Bob, I think I printed out your instructions on how to modify the original system for the 'resume' function. I might try that sometime, once I get this current problem worked out.

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Re: Cruise Control [message #153086 is a reply to message #153045]

Thu, 15 December 2011 16:50

AStasunas

Messages: 58
Registered: April 2009
Location: Winter Springs, Fl

Karma: 0

Member

I am also having trouble getting my Cruise to function, but now I'm even more confused.

Bob de Kruyff said:
"You really need to depress it all the way to set the speed."

The Maintenance Manual 12-36 says "Depressing the button partially allows current to flow to the transducer solenoid at full voltage which causes the solenoid to pull in. Depressing the button fully opens the circuit to both the resistance and standard solenoid feed wires and the solenoid becomes deactivated."

Which is correct, press fully to engage or press partially to engage?

Regards,

"Vinnie" 1975 Eleganza, Winter Springs, Fl

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Re: Cruise Control [message #153106 is a reply to message #153086]

Thu, 15 December 2011 19:13

Bob de Kruyff

Messages: 4260
Registered: January 2004
Location: Chandler, AZ

Karma: 1

Senior Member

Well I guess both probably are. I've noted that if I push mine all the way in, it more reliably sets the unit since pushing partially in is somewhat nebulous since you can't always tell if you pushed far enough unless you watch the light. If you push all the way in, it still sets it on the way past partially in--if that makes sense

Bob de Kruyff
78 Eleganza
Chandler, AZ

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Re: [GMCnet] Cruise Control [message #153112 is a reply to message #153072]

Thu, 15 December 2011 19:32

jade

Messages: 163
Registered: August 2009

Karma: 0

Senior Member

Carl;
I have one on the Painted Desert that I'm restoring in Ajo.
I'm not going to use it and you can have it
I,m up in Pinetop until the first week in Jan., I could bring it to Casa
Grande if you want.
Let me know.
JADE
73 23' ?? 73 26' Painted Desert
Ajo, AZ
KC7QGC

----- Original Message -----
From: "Carl Stouffer" <carljr3b@yahoo.com>
To: <gmclist@temp.gmcnet.org>
Sent: Thursday, December 15, 2011 1:06 PM
Subject: Re: [GMCnet] Cruise Control

>
>
> Bob de Kruyff wrote on Thu, 15 December 2011 12:53
>> JohnL455 wrote on Thu, 15 December 2011 12:35
>> > On that old style (one button) stalk is the switch out at the end near
>> > the button? Could you spray some Caig Deoxid D5 in there to clean and
>> > lubricate the contacts, if that is the problem. On the old one button
>> > type isn't it:
>> > press to set
>> > hold to accel
>> > press to cancel?
>> > If so, then a bad switch may be canceling it after setting it? Thinking
>> > out loud here and don't have mine to look at. Darn the winter!
>>
>> Actually the original stalk/button has all of the same functions as the
>> newer resume type except for the on off switch. I modified my system to a
>> resume type without replacing the stalk.
>
>
>
> This must be the 'old - old' style. The 'switch' I'm referring to is the
> button in the end of the stalk. There IS no separate switch I did spray
> some CRC contact cleaner into the button while depressing and releasing
> it, but it didn't seem to help.
>
> Bob, I think I printed out your instructions on how to modify the original
> system for the 'resume' function. I might try that sometime, once I get
> this current problem worked out.
> --
> Carl S.
> '75 ex Palm Beach
> Tucson, AZ.
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

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Re: [GMCnet] Cruise Control [message #153117 is a reply to message #153112]

Thu, 15 December 2011 19:51

Carl S.

Messages: 4186
Registered: January 2009
Location: Tucson, AZ.

Karma: 13

Senior Member

Jim,

That would be awesome! Thank you very much. I will test with the one I have sometime before then, but I have to give it back to my mechanic friend. I'm pretty sure that will solve my problem. I will see you in Casa Grande.

Thanks again!

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Re: [GMCnet] Cruise Control [message #153149 is a reply to message #153112]

Thu, 15 December 2011 22:20

Don A

Messages: 895
Registered: October 2008
Location: Dallas, TX

Karma: 0

Senior Member

<<<< I,m up in Pinetop until the first week in Jan., I could bring it to Casa Grande if you want. >>>>

Hi Jade
How are the roads around Pinetop after the snows.

I'm leaving Sat for Phoenix, then spend Christmas in Pinetop, actually just behind the Lowe's at Showlow.
Trying to decide whether to go thru Pinetop as I usually do or to avoid the mtns and go through Safford or Tucson.

Sorry to hijack thread, but you don't have PM or list an email.
Thanks

Don Adams Dallas, TX
'76 26' Glenbrook, '90 Sidekick
rebuilt by R Archer, powered by J Bounds, Koba
[IMG]http://www.gmcmhphotos.com/photos/data/6109/G2.jpg[/IMG]

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Re: [GMCnet] Cruise Control [message #158451 is a reply to message #153117]

Sun, 29 January 2012 17:01

Carl S.

Messages: 4186
Registered: January 2009
Location: Tucson, AZ.

Karma: 13

Senior Member

"Carl;
I have one on the Painted Desert that I'm restoring in Ajo.
I'm not going to use it and you can have it
I,m up in Pinetop until the first week in Jan., I could bring it to Casa
Grande if you want.
Let me know.
JADE
73 23' ?? 73 26' Painted Desert
Ajo, AZ
KC7QGC"

Carl S. wrote on Thu, 15 December 2011 18:51

Jim,

I plugged the stalk/button into the harness on the coach to test it on the way home from Casa Grande, and it worked perfectly. Thank you so much. I will replace the old stalk as soon as I have the chance, then my cruise control system will be working 100% for probably the first time since I've had the coach. I really appreciate it.

Thanks again.

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Re: [GMCnet] Cruise Control [message #158462 is a reply to message #158451]

Sun, 29 January 2012 17:34

jade

Messages: 163
Registered: August 2009

Karma: 0

Senior Member

Glad I could help
----- Original Message -----
From: "Carl Stouffer" <carljr3b@yahoo.com>
To: <gmclist@temp.gmcnet.org>
Sent: Sunday, January 29, 2012 4:01 PM
Subject: Re: [GMCnet] Cruise Control

>
>
> "Carl;
> I have one on the Painted Desert that I'm restoring in Ajo.
> I'm not going to use it and you can have it
> I,m up in Pinetop until the first week in Jan., I could bring it to Casa
> Grande if you want.
> Let me know.
> JADE
> 73 23' ?? 73 26' Painted Desert
> Ajo, AZ
> KC7QGC"
>
>
> Carl S. wrote on Thu, 15 December 2011 18:51
>> Jim,
>>
>> That would be awesome! Thank you very much. I will test with the one I
>> have sometime before then, but I have to give it back to my mechanic
>> friend. I'm pretty sure that will solve my problem. I will see you in
>> Casa Grande.
>>
>> Thanks again!
>
>
>
> Jim,
>
> I plugged the stalk/button into the harness on the coach to test it on the
> way home from Casa Grande, and it worked perfectly. Thank you so much. I
> will replace the old stalk as soon as I have the chance, then my cruise
> control system will be working 100% for probably the first time since I've
> had the coach. I really appreciate it.
>
> Thanks again.
> --
> Carl S.
> '75 ex Palm Beach
> Tucson, AZ.
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

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