Check whether the fuel gauge also moves - if so, it is probably a faulty earth to the instrument cluster.
John
My 2004 TD5 Defender 130 has me baffled. I have noticed when I push on the go faster pedal my Temp gauge moves into the cooler zone. Lift foot off and it returns to the "normal position". It has me concerned. Does anyone know whats going on? Thanx Regards Dave.
Check whether the fuel gauge also moves - if so, it is probably a faulty earth to the instrument cluster.
John
John
JDNSW
1986 110 County 3.9 diesel
1970 2a 109 2.25 petrol
Had a similar problem on my series three! When the headlights were turned on or the thermo fan cut in, both the original and the aftermarket temp gauges would rise. I cleaned up the the earthing points from the engine to the body/chassis and put a second earth strap from the battery to the body, all fixed.
Cheers, Mick.
1974 S3 88 Holden 186.
1971 S2A 88
1971 S2A 109 6 cyl. tray back.
1964 S2A 88 "Starfire Four" engine!
1972 S3 88 x 2
1959 S2 88 ARN 111-014
1959 S2 88 ARN 111-556
1988 Perentie 110 FFR ARN 48-728 steering now KLR PAS!
REMLR 88
1969 BSA Bantam B175
 Master
					
					
						Master
					
					
                                        
					
					
						Possibly thermostat stuck open.Better than stuck closed.
When you accelerate more flow from the water pump drops the guage.
Also check coolant levels.Sometimes low level can cause the guage to drop
because there isn`t any coolant around the sensor.Then things go pear-shaped pretty quickly.
Trev.
p
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