Trundling temp gauge - Defender Source
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  #1  
Old August 5th, 2013, 07:19 PM
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Trundling temp gauge

So I'm driving the D110DC from Nashville to Jacksonville, FL for the move and find the temperature gauge tends to fluctuate with two inputs: A/C use (which raises it substantially enough that I'm concerned to leave it off the rest of trip, despite 92 degrees outside); and the parking or headlight use (during a few thunderstorms). Pics show the change only between normal 70 mph driving with headlights off and same speed with only change from the headlights on. Anyone want to gander a guess as to why?
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  #2  
Old August 5th, 2013, 07:27 PM
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Ian Gregory
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Had the same problem with mine. Drove from SC to AZ in July too scared to run the AC past Atlanta!!

Turned out to be wiring and ground related on mine. I swapped in a VDO and new wiring to cure it.
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Old August 5th, 2013, 09:16 PM
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Jason England
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If the only difference is lights or no lights them bad ground. NAS 110's had a conditioner to fix the reading no matter the input so unless you removed that the gauge reading isn't worth squat!
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  #4  
Old August 6th, 2013, 06:40 PM
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Thanks, guys. Will look for it.
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Pete

1966 ECR Series IIA
1970 Series IIA (Stella)
1997 D90 ST
2011 LR4 HSE
2010 Range Rover Supercharged

Sadly gone (some more sadly than others):
1983 D110 Double Cab 300 TDi
1989 RRC
1996 D1
2006 LR3
2008 RR
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  #5  
Old August 6th, 2013, 06:58 PM
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What engine?
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Old August 6th, 2013, 07:34 PM
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Reese
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If its like the NAS 110, there is an inline "signal conditioner" just up the wire from the temp gauge that may be picking up the additional power load on the system. Just a guess but removal of this and replacing the gauge is on my short list.

From the ECR website:
http://www.eastcoastrover.com/signalconditioner.html
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Old August 6th, 2013, 07:55 PM
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Pete

1966 ECR Series IIA
1970 Series IIA (Stella)
1997 D90 ST
2011 LR4 HSE
2010 Range Rover Supercharged

Sadly gone (some more sadly than others):
1983 D110 Double Cab 300 TDi
1989 RRC
1996 D1
2006 LR3
2008 RR
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