Temp Light Comes On 99 Nomad

sct7920 · 04-30-2011, 07:19 PM

Hello....I was wondering if anyone might be able to help me out. I have a 99 Nomad (Judges Oil Gear Installed) and when I started it up this year and revved the engine a little the Temp light came on. When I let it back to idle the light goes off. There is plenty of coolant that was just flushed and changed last year. Does anyone have any ideas?

Thanks
Steve
SCT7920@Aol.com

cactusjack · 04-30-2011, 11:11 PM

If the temperature light comes on before the engine is up to temperature, I'd suspect something has gone wrong in the temp sensor circuit.

**ringadingh** · 05-01-2011, 05:44 AM

That would be my suspicion as well. Also check the wire that goes onto the heat switch to make sure its a clean solid connection.

trosco · 05-01-2011, 09:01 AM

at the core of many of those circuits is a thermister or thermal resistor. Heat causes the resistance to increase and those changes cause the temp meter readout to increase.

In our case it is a dumber circuit and so it's more like a thermal switch. Normal and then above a certain temp infinet resistance and the light circuit is the alt route for current and presto! the light is on!

Look for a open condition or loose conection or coroded (high resistance) conection.

sct7920 · 05-01-2011, 09:56 PM

Thanks Everyone...I'm not really sure about the resistors, but I will tank the tank off and carefully follow the wires to see what I come up with...Ive had that tank off more times than I ever wished. I probably could do it blindfolded.

Thanks Again
Steve

AlabamaNomadRider · 05-01-2011, 10:19 PM

Does sound like a faulty connection. I was thinking corrosion in the radiator but since you flushed that should rule that out.

**minst7877** · 05-01-2011, 10:19 PM

Before you take the tank off start with the switches at the bottom of the radiator. Clean the contacts and make sure they are tight. Easy to get at and may save you a lot of hassle. One is the fan switch and the other is the temp light.

DC

**ringadingh** · 05-02-2011, 07:54 AM

I would start with what minst recomended, you may not need to remove the tank this time.

04-30-2011, 07:19 PM	#1
sct7920 Jr. Member Join Date: May 2010 Posts: 6	Temp Light Comes On 99 Nomad Hello....I was wondering if anyone might be able to help me out. I have a 99 Nomad (Judges Oil Gear Installed) and when I started it up this year and revved the engine a little the Temp light came on. When I let it back to idle the light goes off. There is plenty of coolant that was just flushed and changed last year. Does anyone have any ideas? Thanks Steve SCT7920@Aol.com Login or Register to Remove Ads
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04-30-2011, 11:11 PM	#2
cactusjack Mega-Contributor Join Date: Sep 2007 Location: Where it doesn't snow...ever! Posts: 21,926	Temp Light Comes On 99 Nomad If the temperature light comes on before the engine is up to temperature, I'd suspect something has gone wrong in the temp sensor circuit. __________________ Scott "Cactusjack" Hanks VBA #00105 H.O.G. #4250060 2011 H-D Ultra Limited 103ci :: 2011 HD Electra Glide Ultra Limited w/Stage 1 :: Rallies: Mesquite '08\|Custer '09\|Cortez '10\|Crescent City '11\|Kanab '12\|Antlers '12\|Estes Park '13\|Antlers '13\|Orofino '14\|The Dalles '17
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05-01-2011, 05:44 AM	#3
ringadingh Join Date: Aug 2007 Location: Newmarket Ontario Canada Posts: 35,387	Temp Light Comes On 99 Nomad That would be my suspicion as well. Also check the wire that goes onto the heat switch to make sure its a clean solid connection. __________________ 2002 Nomad aka Bountyhunter VBA #27 VROC #18951
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05-01-2011, 09:01 AM	#4
trosco Sr. Member Join Date: Feb 2008 Location: Charlotte, NC Posts: 1,464	Temp Light Comes On 99 Nomad at the core of many of those circuits is a thermister or thermal resistor. Heat causes the resistance to increase and those changes cause the temp meter readout to increase. In our case it is a dumber circuit and so it's more like a thermal switch. Normal and then above a certain temp infinet resistance and the light circuit is the alt route for current and presto! the light is on! Look for a open condition or loose conection or coroded (high resistance) conection. __________________ trosco: just call me Ross 2007 Black & Titanium Nomad (Nomad made 65K but got replaced 2014) 2010 Titanium Goldwing 2014 KLR 650 New Edition
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05-01-2011, 09:56 PM	#5
sct7920 Jr. Member Join Date: May 2010 Posts: 6	Temp Light Comes On 99 Nomad Thanks Everyone...I'm not really sure about the resistors, but I will tank the tank off and carefully follow the wires to see what I come up with...Ive had that tank off more times than I ever wished. I probably could do it blindfolded. Thanks Again Steve Login or Register to Remove Ads
	0

05-01-2011, 10:19 PM	#6
AlabamaNomadRider Sr. Contributor Join Date: Jul 2009 Location: Boaz, Alabama Posts: 13,742	Temp Light Comes On 99 Nomad Does sound like a faulty connection. I was thinking corrosion in the radiator but since you flushed that should rule that out. __________________ Gene Cross, Jr. Boaz, Alabama KawaNOW/VBA #1181
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05-01-2011, 10:19 PM	#7
minst7877 Join Date: Oct 2010 Location: Michigan Posts: 1,286	Temp Light Comes On 99 Nomad Before you take the tank off start with the switches at the bottom of the radiator. Clean the contacts and make sure they are tight. Easy to get at and may save you a lot of hassle. One is the fan switch and the other is the temp light. DC __________________ Me and my 99 G1 Nomad on US 2 by the Lake Michigan Shoreline. Judge's Oil Gear failed and engine overhauled @ 35563 miles VBA/KawaNOW #01625 Christian Motorcyclists Assoc. Wheels Of Destiny Chapter #735 PA Wilds NE/Eastern Canada regional rally July 2012 Eureka Springs National 2015 Rolling Thunder Washington DC 2016 NE US / E Canada Rally - Mont Tremblant, QC 2016 VRA Eastern National at Maggie Valley 2017 99 Nomad G1 gone but never forgotten traded 4/8/17 for a 2017 Indian Roadmaster
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05-02-2011, 07:54 AM	#8
ringadingh Join Date: Aug 2007 Location: Newmarket Ontario Canada Posts: 35,387	Temp Light Comes On 99 Nomad I would start with what minst recomended, you may not need to remove the tank this time. __________________ 2002 Nomad aka Bountyhunter VBA #27 VROC #18951
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