Temp Guage overheating - Land Rovers Only

jades007 · 02-27-2005, 07:02 PM

I have a '96 Range Rover and my problem is that the Car does not over heat but the Temperature Guage is always reading high. I have flushed the radiator and the problem is still there. What can I do next ?

Landy-Andy · 02-27-2005, 11:34 PM

Hi Jades007,
My guess would be a faulty water temp sensor. The sensor has a "resistor" inside that increases resistance as the water temp gets hotter. As the resistance gets higher the display shows higher temp. When these sensors break down they have a higher resistance at a lower water temp which shows a inaccurate display.
Firstly check your sensor connections (clean them up, it could just be a dirty or loose connection).
Then if you have a meter check the body of the sensor is making a good ground loop to your battery negative.
Then check the terminal connection on the sensor is showing 12-14volts. (with ignition on).
If both of these are good then its a good chance that your sensor is hooped!
I have seen new RR water temp sensors go for as low as $10 on eBay, but be sure its for the right year & model before bidding...
good luck,
Andy

02-27-2005, 07:02 PM	#1 (permalink)
jades007 Member Join Date: Jan 2005 Posts: 9 Gallery: 0	Temp Guage overheating I have a '96 Range Rover and my problem is that the Car does not over heat but the Temperature Guage is always reading high. I have flushed the radiator and the problem is still there. What can I do next ?

02-27-2005, 11:34 PM	#2 (permalink)
Landy-Andy Senior Member Join Date: Sep 2004 Location: Beautiful British Columbia, Canada Posts: 124 Gallery: 0	Sensor fault??? Hi Jades007, My guess would be a faulty water temp sensor. The sensor has a "resistor" inside that increases resistance as the water temp gets hotter. As the resistance gets higher the display shows higher temp. When these sensors break down they have a higher resistance at a lower water temp which shows a inaccurate display. Firstly check your sensor connections (clean them up, it could just be a dirty or loose connection). Then if you have a meter check the body of the sensor is making a good ground loop to your battery negative. Then check the terminal connection on the sensor is showing 12-14volts. (with ignition on). If both of these are good then its a good chance that your sensor is hooped! I have seen new RR water temp sensors go for as low as $10 on eBay, but be sure its for the right year & model before bidding... good luck, Andy

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