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Can someone please identify these?

GC
Greg Crawford
Mon, Jun 7, 2021 8:03 PM

So my dash is now in the trash bin, and I am starting from scratch. I see a lot of hacked up wiring, and I am tracing and labeling every wire as I can
identify it. I'm also trashing the factory A/C controls and installing late model controls that are easy to obtain.

My question is what are these two items? I've been studying the electrical diagram, but haven't found these yet. I wish I had the full Adobe Acrobat
so I could break the wiring diagram into handy sized pages.

[url=http://www.gmcmhphotos.com/photos/electrical/p68235-unknown-2.html][url]

[url=http://www.gmcmhphotos.com/photos/data/7364/medium/Unknown_1.jpg][url]

Greg Crawford
KM4ZCR
Knoxville, TN

"Ruby Sue"
1977 Royale
Rear Bath
403 Engine
American Eagle Wheels
Early Version Alex Sirum Quad bags

So my dash is now in the trash bin, and I am starting from scratch. I see a lot of hacked up wiring, and I am tracing and labeling every wire as I can identify it. I'm also trashing the factory A/C controls and installing late model controls that are easy to obtain. My question is what are these two items? I've been studying the electrical diagram, but haven't found these yet. I wish I had the full Adobe Acrobat so I could break the wiring diagram into handy sized pages. [url=http://www.gmcmhphotos.com/photos/electrical/p68235-unknown-2.html][url] [url=http://www.gmcmhphotos.com/photos/data/7364/medium/Unknown_1.jpg][url] -- Greg Crawford KM4ZCR Knoxville, TN "Ruby Sue" 1977 Royale Rear Bath 403 Engine American Eagle Wheels Early Version Alex Sirum Quad bags
GC
Greg Crawford
Mon, Jun 7, 2021 8:04 PM

Both pictures didn't make the first one for some reason. Here is the second one.

[url=http://www.gmcmhphotos.com/photos/data/7364/medium/Unknown_1.jpg][url]

Greg Crawford
KM4ZCR
Knoxville, TN

"Ruby Sue"
1977 Royale
Rear Bath
403 Engine
American Eagle Wheels
Early Version Alex Sirum Quad bags

Both pictures didn't make the first one for some reason. Here is the second one. [url=http://www.gmcmhphotos.com/photos/data/7364/medium/Unknown_1.jpg][url] -- Greg Crawford KM4ZCR Knoxville, TN "Ruby Sue" 1977 Royale Rear Bath 403 Engine American Eagle Wheels Early Version Alex Sirum Quad bags
GC
Greg Crawford
Mon, Jun 7, 2021 8:06 PM

[url=http://www.gmcmhphotos.com/photos/data/7364/medium/Unknown_2.jpg][url]

Finally got the right picture.

Greg Crawford
KM4ZCR
Knoxville, TN

"Ruby Sue"
1977 Royale
Rear Bath
403 Engine
American Eagle Wheels
Early Version Alex Sirum Quad bags

[url=http://www.gmcmhphotos.com/photos/data/7364/medium/Unknown_2.jpg][url] Finally got the right picture. -- Greg Crawford KM4ZCR Knoxville, TN "Ruby Sue" 1977 Royale Rear Bath 403 Engine American Eagle Wheels Early Version Alex Sirum Quad bags
JS
Jeremy Sanford
Mon, Jun 7, 2021 8:30 PM

The one with the foam stuck on it is the Low Coolant module, the plastic housing one is the Low Fuel module.

Jeremy Sanford
Sacramento, CA
1977 Kingsley
http://www.gmcmhphotos.com/photos/u42733-jsanford.html

 

The one with the foam stuck on it is the Low Coolant module, the plastic housing one is the Low Fuel module. -- Jeremy Sanford Sacramento, CA 1977 Kingsley http://www.gmcmhphotos.com/photos/u42733-jsanford.html  
JR
John R. Lebetski
Mon, Jun 7, 2021 8:31 PM

I can never remember which but low coolant and Set to travel Auto reminder light.

John Lebetski
Woodstock, IL
77 Eleganza II

I can never remember which but low coolant and Set to travel Auto reminder light. -- John Lebetski Woodstock, IL 77 Eleganza II
BM
Billy Massey
Mon, Jun 7, 2021 8:42 PM

Here's a better link
http://www.gmcmhphotos.com/photos/g7364-electrical.html

On Mon, Jun 7, 2021 at 3:06 PM Greg Crawford captgregcrawford@gmail.com
wrote:

Here's a better link http://www.gmcmhphotos.com/photos/g7364-electrical.html On Mon, Jun 7, 2021 at 3:06 PM Greg Crawford <captgregcrawford@gmail.com> wrote:
GC
Greg Crawford
Mon, Jun 7, 2021 8:58 PM

Aha! Thanks for the speedy response. Is there a way to test the low coolant module? Like pull the wire from the radiator and ground it or something?
I've never seen that light lit, and you would think that it would light in the on position and go off once the engine is running, but that may be
asking too much.

Anyway, I am dumping all the old indicator lights and fabricating all new. I'll put that light in there, hoping I can get it to work at some point.

As far as low fuel, I'm too paranoid to even need that one. I get nervous when it gets below half a tank.

Thanks again.

Greg Crawford
KM4ZCR
Knoxville, TN

"Ruby Sue"
1977 Royale
Rear Bath
403 Engine
American Eagle Wheels
Early Version Alex Sirum Quad bags

Aha! Thanks for the speedy response. Is there a way to test the low coolant module? Like pull the wire from the radiator and ground it or something? I've never seen that light lit, and you would think that it would light in the on position and go off once the engine is running, but that may be asking too much. Anyway, I am dumping all the old indicator lights and fabricating all new. I'll put that light in there, hoping I can get it to work at some point. As far as low fuel, I'm too paranoid to even need that one. I get nervous when it gets below half a tank. Thanks again. -- Greg Crawford KM4ZCR Knoxville, TN "Ruby Sue" 1977 Royale Rear Bath 403 Engine American Eagle Wheels Early Version Alex Sirum Quad bags
JS
Jeremy Sanford
Mon, Jun 7, 2021 10:02 PM

Greg C. wrote on Mon, 07 June 2021 13:58

Aha! Thanks for the speedy response. Is there a way to test the low coolant module? Like pull the wire from the radiator and ground it or
something?

Thanks again.

Yes, pull the wire off of the probe on the radiator and the light should come on. See page 12-4 of the 1977-78 Maintenance Manual for complete
troubleshooting procedure.

Jeremy Sanford
Sacramento, CA
1977 Kingsley
http://www.gmcmhphotos.com/photos/u42733-jsanford.html

 

Greg C. wrote on Mon, 07 June 2021 13:58 > Aha! Thanks for the speedy response. Is there a way to test the low coolant module? Like pull the wire from the radiator and ground it or > something? > > Thanks again. Yes, pull the wire off of the probe on the radiator and the light should come on. See page 12-4 of the 1977-78 Maintenance Manual for complete troubleshooting procedure. -- Jeremy Sanford Sacramento, CA 1977 Kingsley http://www.gmcmhphotos.com/photos/u42733-jsanford.html  
MC
Matt Colie
Mon, Jun 7, 2021 11:30 PM

Greg,
Set up the "Low Fuel" aka "Feed Me" light anyway.  You may go traveling some day, or you may sell the coach to someone that expects that to work.

Did you ever own a motorcycle?  Most don't have a fuel guage, just a reserve that you remember that you forgot to switch back to the main feed when
you bought gas.  Keep it.

Matt

Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit

Greg, Set up the "Low Fuel" aka "Feed Me" light anyway. You may go traveling some day, or you may sell the coach to someone that expects that to work. Did you ever own a motorcycle? Most don't have a fuel guage, just a reserve that you remember that you forgot to switch back to the main feed when you bought gas. Keep it. Matt -- Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms SE Michigan - Near DTW - Twixt A2 and Detroit
SW
Steve Weinstock
Tue, Jun 8, 2021 2:05 PM

Hello Greg -

What “late model” controls are you considering ??

--
Steve W
1973 : 23'
Southern California

Hello Greg - What “late model” controls are you considering ?? -- Steve W 1973 : 23' Southern California