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Instrument Cluster Question

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Old Sep 20, 2005 | 01:30 PM
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Default Instrument Cluster Question

I see that some instrument clusters have a note w/ cruise or w/o cruise. My question is there a light that comes on when cruise is activated? I have a stock 86 4+3. Thanks a bunch.

Bob
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Old Sep 20, 2005 | 03:48 PM
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My 87 doesn't have any indication on the dash when the cruise is engaged. (I am not the original owner, so I don't know if that is the way it should be.)
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Old Sep 20, 2005 | 05:03 PM
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the same for my 87/no indication what ever
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Old Sep 20, 2005 | 06:42 PM
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The inst cluster has inputs from various sensors & the CC lever and outputs to the CC servo but, though it is the CC "brains", it does not display CC status.
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Old Sep 20, 2005 | 10:54 PM
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Originally Posted by Billy Stargazer
the same for my 87/no indication what ever
Same on my 85. I think i've only used cruise once though, to make sure it works.
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Old Sep 20, 2005 | 11:09 PM
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There is no cruise control indicator light in C4s.
However 4+3 Doug Nash manuals have an overdrive indicator in the instrument panel. (84-86 in DIC, 87-88 in Tach area)
Maybe that's what you're mistaking it for.
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Old Sep 21, 2005 | 12:03 AM
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My cruise has never worked. Everything both electrical and vaccum check out fine, I mean everything. The only thing I can think of is my Instrument Cluster had been replaced by the original owner at one time with a non-cruise one, since it has worked flawlessly for me, which seem rare for a 19 year old car and seeing how so many guys have problems with their clusters. I pulled it and there is absolutely no numbers or identification on it anywhere.

Not to highjack you thread here, but is there a way to tell if I got a cruise or non-cruise cluster? I would love to have cruise control.

Last edited by 86PACER; Sep 21, 2005 at 12:08 AM.
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Old Sep 21, 2005 | 01:32 AM
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According to Gordon's book on clusters, in 1986 Vettes the cluster IDs are as follows:
25078622-w/ cruise, export
25080224-w/ cruise, USA
25080225-w/o cruise, USA
25080226-w/ cruise, CAN
25080227-w/o cruise, CAN
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Old Sep 21, 2005 | 01:48 AM
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Originally Posted by 65Z01
According to Gordon's book on clusters, in 1986 Vettes the cluster IDs are as follows:
25078622-w/ cruise, export
25080224-w/ cruise, USA
25080225-w/o cruise, USA
25080226-w/ cruise, CAN
25080227-w/o cruise, CAN
Yes I got those already. The thing is my darn Instrument Cluster does not have any numbers or marking what so ever anywhere on it. Unless it's on the inside where I have not taken it apart to look. I just pulled it out of the car cause I though it might be in the back or the side. Probably about the only thing I could do is swap mine for someone's that does have cruise and works to see is what I'm thinking.
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Old Sep 21, 2005 | 07:35 AM
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Thanks a bunch, MY 'OD' light works fine, I was just wondering because my other GM vehicles light a Cruise icon when it activated and I was curious if the Vette did the same thing beacuse of the instrument panel listing numbers. The funny thing is that Cruise actually worked considering everything else in the car had to be worked on in some way or fashion.

Bob
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Old Sep 21, 2005 | 06:20 PM
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The cruise control IS ROUTED THROUGH the cluster to power the cruise unit and to adjust speed. Although there is NO LIGHT in the cluster, a non cruise cluster will work in a cruise car but the cruise control itself would then not work. The wire routes from the brake/clutch/ pedal throught the cluster into cruise circuit (blue/white stripe wire).
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Old Sep 21, 2005 | 06:37 PM
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Though I do not have schematics on the cluster it would be a fair guess that the difference between cruise and non is merely a plug in PCB.
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