| Cruise questions [message #276499] |
Wed, 22 April 2015 21:25  |
pzerkel
Messages: 212
Registered: September 2007
Location: Salisbury, IL
Karma: 0
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I have a 1978 with original cruise control, which never has worked. The light used to be on all the time, now it is not. The backup lights still work, so I understand that means the fuse is ok.
So I assume the light is burned out. I have never removed the tell-tale lights, but does not look too bad to do in the shop manual. I am assuming check/replace bulb is first thing to do, but what should be next troubleshooting steps?
Paul Zerkel
'78 Eleganza II
Salisbury IL (near Springfield)
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| Re: Cruise questions [message #276501 is a reply to message #276499] |
Wed, 22 April 2015 22:32  |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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pzerkel wrote on Wed, 22 April 2015 20:25I have a 1978 with original cruise control, which never has worked. The light used to be on all the time, now it is not. The backup lights still work, so I understand that means the fuse is ok.
So I assume the light is burned out. I have never removed the tell-tale lights, but does not look too bad to do in the shop manual. I am assuming check/replace bulb is first thing to do, but what should be next troubleshooting steps?
I doubt it is the light if the rest of the system doesn't work. Have you tried pulling up on the brake pedal with your toe when you try to engage the system? Do your brake lights work or are they on all the time?
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: Cruise questions [message #276502 is a reply to message #276499] |
Wed, 22 April 2015 23:14 |
roy1
Messages: 2126
Registered: July 2004
Location: Minden nevada
Karma: 6
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Unless you are really hooked on the original before you put much time and cash into the old vacuum type cruise control you might consider a new electronic type or an electronic one from a later model GM vehicle at the wrecking yard. Just another option if you want a more modern one.
Roy Keen
Minden,NV
76 X Glenbrook
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| Re: Cruise questions [message #276521 is a reply to message #276499] |
Thu, 23 April 2015 09:33 |
mickey szilagyi
Messages: 273
Registered: January 2013
Karma: 0
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Our cruise control didn't work when we first bought our 77 Kingsley in 2012 but the cables were still connected. Our speedometer worked but was pretty jumpy so, with the help of lots of people on this forum, we checked the two cables, one from the dash speedometer that runs to the cruise control unit and the one that runs from the cruise control to the governor gear assmembly. We disconnected and lubed the cables and put them back together and still had a jumpy speedometer. In the mix we also replaced the final drive with a 3.70 which threw off the speedometer. So we purchased an adaptor that was supposed to correct the speedometer difference. We connected the speedo cable directly to the adaptor which was then connected to the governor gear assembly completely removing the cruise control from the system. The speedometer worked without jumping however within a few hundred miles our governor gear stripped and we were stranded in a campground. After examining the adaptor we found it locked up so we feel pretty strongly it was the cause of the governor gear stripping. We currently have the speedometer cable connected to the governor gear assembly (no adaptor, no cruise control) and it works without jumping but is still off by about 5%.
Bottom line for us is we'll never feel comfortable again with the OEM cruise control or an adaptor in the mix of the speedometer cable. All they might do is eventually cause another governor gear failure. We're looking into speedometer alternatives but haven't decided which way to go.
http://www.gmcmhphotos.com/photos/g6778-governor-gear.html
FWIW
Mickey
1977 Kingsley, 403, Lansing, MI
[Updated on: Thu, 23 April 2015 10:00] Report message to a moderator |
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| Re: Cruise questions [message #276537 is a reply to message #276499] |
Thu, 23 April 2015 11:48 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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My coach has the original cruise control, with a transducer which looks either fairly new or rebuilt - it was on the coach when I got it. Speedo is stable, and the cruise works properly. I see no need to change unless/until it fails. The light doesn't work, I suspect the bulb is burned out. Not going to worry over it.
I put an aftermarket (Rostra) unit on the MouseToad, it also works flawlessly. Since it (Kia Soul) is totally electric, you don't even have to raise the hood to install the cruise. I swapped my CPA one on her Kia fopr tax services.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: [GMCnet] Cruise questions [message #276540 is a reply to message #276512] |
Thu, 23 April 2015 12:33 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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If you really want a good, reliable, cheap cruise control, with all the
modern features, why not stick with GM?
http://www.gmcmhphotos.com/photos/g4776-cruise-control-ac-delphi-electro-motor.html
At about the same time John was preparing that, I installed the same unit,
but didn't go to all the trouble he did for control. I use a simple,
inexpensive, transmitter/receiver pair with the "watch fob" transmitter
stuck on the spoke of my steering wheel. I'll be glad to provide details
if anyone's interested.
Ken H.
Americus, GA
'76 X-Birchaven w/Cad500/Howell EFI & EBL,
Manny Brakes & 1-Ton, etc., etc.
www.gmcwipersetc.com
On Thu, Apr 23, 2015 at 9:06 AM, Pete Smith wrote:
> I like the choices in controls these folks offer in an aftermarket Cruise.
>
> http://www.rostra.com/universal-aftermarket-cruise-control-by-rostra.php
>
> Prices look reasonable too.........
>
> Pete
> --
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: Cruise questions [message #276587 is a reply to message #276499] |
Thu, 23 April 2015 20:52 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Could be as simple as a cracked vac hose or bad elec connection.
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: Cruise questions [message #276595 is a reply to message #276502] |
Thu, 23 April 2015 22:20 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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roy1 wrote on Wed, 22 April 2015 22:14Unless you are really hooked on the original before you put much time and cash into the old vacuum type cruise control you might consider a new electronic type or an electronic one from a later model GM vehicle at the wrecking yard. Just another option if you want a more modern one.
Not a bad idea but I'm running my original with a resume add on and it works perfectly.
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: Cruise questions [message #276596 is a reply to message #276521] |
Thu, 23 April 2015 22:26 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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Senior Member |
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""Bottom line for us is we'll never feel comfortable again with the OEM cruise control or an adaptor in the mix of the speedometer cable. All they might do is eventually cause another governor gear failure. We're looking into speedometer alternatives but haven't decided which way to go.
http://www.gmcmhphotos.com/photos/g6778-governor-gear.html
FWIW
Mickey 1977 Kingsley, 403, Lansing, MI
mickey--none of that is the fault of the original cruise control
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: Cruise questions [message #276597 is a reply to message #276537] |
Thu, 23 April 2015 22:30 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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Senior Member |
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Johnny Bridges wrote on Thu, 23 April 2015 10:48My coach has the original cruise control, with a transducer which looks either fairly new or rebuilt - it was on the coach when I got it. Speedo is stable, and the cruise works properly. I see no need to change unless/until it fails. The light doesn't work, I suspect the bulb is burned out. Not going to worry over it.
I put an aftermarket (Rostra) unit on the MouseToad, it also works flawlessly. Since it (Kia Soul) is totally electric, you don't even have to raise the hood to install the cruise. I swapped my CPA one on her Kia fopr tax services.
--johnny
Mine does as well and I still think it is the best unit for us, but the general tendency here is to throw out the old without any sense of maintenance nor coming to grips with the mods that cause more problems than the original config.
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: Cruise questions [message #276615 is a reply to message #276596] |
Fri, 24 April 2015 07:00 |
mickey szilagyi
Messages: 273
Registered: January 2013
Karma: 0
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Senior Member |
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Bob, you're probably right. When we were dealing with this it seemed like the cruise control assembly was the culprit for the bounching speedo as as soon as we took the cruise control unit out of the link the speedo settled down. Lots of people on this forum said the bounching speedo wasn't good for the governor gear. We're still trying to decide how to deal with the difference in the speedo and actual speed due to the 3.70 final drive we now have. The experience with the adaptor leaves us really reluctant to try another one. We've been busy with other things on the coach but would like to have the cruise control working but it's a low priority right now especially since we can't decide which way to go. Thanks for your input.
Mickey
1977 Kingsley, 403, Lansing, MI
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