False Gauge Readings - Defender Source
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Old August 18th, 2008, 08:28 PM
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Henry Stinson
'73 Series III SWB '84 110 tdi
Join Date: Jun 2007
Location: Toronto, Canada
Posts: 94
False Gauge Readings

Any hints on why my temp gauge reads higher and my volt meter lower with the heater blower motor on? I pulled off the highway today thinking I was on the verge of overheating my 300 tdi - scary moment. Turning off the blower motor lowered the temps. Turning the gauge lights off dropped them even lower into the normal operating range.

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Old August 18th, 2008, 11:17 PM
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Robert Dassler
1994 D90
D-90 Source Vendor
Join Date: Apr 2004
Location: Albuquerque, NM, USA
Posts: 994
I'd say you have a loose ground somewhere.
Rob Dassler
SWR Automotive
505-872-7818 (shop)
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