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Gauges On When Ignition Is Off [message #245318] Thu, 27 March 2014 09:52 Go to next message
harrylaw is currently offline  harrylaw   Canada
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Registered: October 2013
Location: Nanaimo , BC
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Should my gauges be on when the ignition is turned off ?? , Gas , oil pressure & temp are still on when the ignition is off & key removed , haven't noticed it before & my battery is draining ??
Thanks in advance !! Razz

Harry Law , 1974 , 26'-7 , Nanaimo , BC , Canada.

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Re: Gauges On When Ignition Is Off [message #245319 is a reply to message #245318] Thu, 27 March 2014 10:16 Go to previous messageGo to next message
mikethebike is currently offline  mikethebike   United States
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Registered: January 2014
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How old is your ignition switch? 1st place I'd look.

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Re: Gauges On When Ignition Is Off [message #245324 is a reply to message #245319] Thu, 27 March 2014 10:44 Go to previous messageGo to next message
Ken Burton is currently offline  Ken Burton   United States
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Registered: January 2004
Location: Hebron, Indiana
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I just looked on the GMC wiring diagram and the power to the gauges does trace back to the ignition switch. So probably the switch is bad or the key lock assembly on the steering column is worn an not pulling the rod to the switch all the way.

Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana

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Re: Gauges On When Ignition Is Off [message #245542 is a reply to message #245318] Fri, 28 March 2014 14:14 Go to previous messageGo to next message
bobby5832708 is currently offline  bobby5832708   United States
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Registered: November 2006
Location: Winter Springs FL
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Harry,

Are the gauges REALLY powered on or are you thinking they are powered on because the pointers don't go to zero when the key is turned off?

The pointers of GM gauges of that era do not go back to zero when the power is switched off, unlike the Ford and Mopar gauges.

I think the easiest way to see if they're really still powered up would be to watch the oil pressure gauge. On my GMC the oil gauge runs about a pointer width over the 1/4 mark at hot idle. Switching off the ignition and the pointer stays at about 1/4. Switch the ign back to run (not starting the engine) and the pointer goes to zero. I would think that if your oil gauge goes to zero when the engine is first switched off then the gauges really are still powered on.

Bob Heller
2017 Winnebago 29VE
Winter Springs FL

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Re: Gauges On When Ignition Is Off [message #245752 is a reply to message #245542] Sun, 30 March 2014 08:59 Go to previous message
harrylaw is currently offline  harrylaw   Canada
Messages: 13
Registered: October 2013
Location: Nanaimo , BC
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Yup - all is good mine does exactly that , My battery just needed replacing , thanks for the advice Razz

Harry Law , 1974 , 26'-7 , Nanaimo , BC , Canada.

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