GMCforum: GMCnet » Low Fuel Light

Home » Public Forums » GMCnet » Low Fuel Light

Show: Today's Messages :: Polls :: Message Navigator

Low Fuel Light [message #225075]

Thu, 10 October 2013 11:42

Manong

Messages: 88
Registered: July 2007
Location: Madison, WI

Karma: 0

Member

My low fuel indicator light just stays on even though the fuel gauge says I have 3/4 tank of fuel. I know the fuel gauge is probably right since I just fueled up. I cleaned mostly all of the connections under the right and left hood and that is when the problem began. Where is the low fuel indicator switch located ? I looked at the wiring diagrams but can't find where it may be at. Could this just be a bad connection or is there a switch that needs to be replaced?

Manong
Madison, WI

Report message to a moderator

Re: Low Fuel Light [message #225085 is a reply to message #225075]

Thu, 10 October 2013 14:40

Matt Colie

Messages: 8547
Registered: March 2007
Location: S.E. Michigan

Karma: 7

Senior Member

TL wrote on Thu, 10 October 2013 12:42

T,

The fuel low indicator is driven by the signal from the sending unit(s)(as selected by the switch). If the light is on when it should not be then there is a problem with the module that makes that work. I don't have access to the wiring diagrams at the moment, but they can be had from Bdub's page. I have no idea how the module works.

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

Report message to a moderator

Re: [GMCnet] Low Fuel Light [message #225100 is a reply to message #225075]

Thu, 10 October 2013 17:33

Mr ERFisher

Messages: 7117
Registered: August 2005

Karma: 2

Senior Member

here go
http://www.gmcmhphotos.com/photos/g5728-low-fuel-module.html

On Thu, Oct 10, 2013 at 9:42 AM, Tom Lopez <elitesdc@charter.net> wrote:

>
>
> My low fuel indicator light just stays on even though the fuel gauge says
> I have 3/4 tank of fuel. I know the fuel gauge is probably right since I
> just fueled up. I cleaned mostly all of the connections under the right
> and left hood and that is when the problem began. Where is the low fuel
> indicator switch located ? I looked at the wiring diagrams but can't find
> where it may be at. Could this just be a bad connection or is there a
> switch that needs to be replaced?
> --
> Manong T, 74 GMC Sequoia
> Madison/De Forest, WI
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>

--
Gene Fisher -- 74-23,77PB/ore/ca
�Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

Report message to a moderator

Re: Low Fuel Light [message #225109 is a reply to message #225075]

Thu, 10 October 2013 18:22

SeanKidd

Messages: 747
Registered: June 2012
Location: Northern Neck Virginia

Karma: 4

Senior Member

Look closely at your module, my light stayed on dim, found a tiny hairline crack in one of the solder joints. Although this device is a wedge base light socket, there is nothing soldered to one side of the socket, so it was never intended as a light itself, just feedback to the guage light. I heated the cracked joint with solder iron and fixed it.

Sean and Stephanie
73 Ex-CanyonLands 26' #317 "Oliver"
Hubler 1-Ton, Quad-Bags, Rear Disc, Reaction Arms, P.Huber TBs, 3.70:1 LSD Honda 6500 inverter gen.
Colonial Travelers

Report message to a moderator

Previous Topic:	Low Air Cleaner
Next Topic:	Speedometer Head More Questions

Goto Forum:

-=] Back to Top [=-

Current Time: Thu Sep 19 22:51:56 CDT 2024

Total time taken to generate the page: 0.01783 seconds