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  #1  
Old July 16th, 2010, 11:48 AM
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Paul Davis
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temp gauge

After replacing the fan clutch, temp sender, and thermostat I believe my gauge was the problem all along.

The temp according to a IR thermostat is 190 or so and the gauge is pegged in the red. In fact, the gauge has started climbing immediately when the motor is started and the IR shows temps of 110 degrees.

Is the VDO 310-105 and sender 323-095 still the correct part numbers for a 97? Is the sender a direct replacement or will I have to use an adapter?

What would make an electronic gauge go bad? Seems like the real issue would be some wiring problem between the sender and the back of the gauge.
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  #2  
Old July 16th, 2010, 11:52 AM
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Rich Campbell
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Quote:
Originally Posted by Paul Davis View Post
After replacing the fan clutch, temp sender, and thermostat I believe my gauge was the problem all along.

The temp according to a IR thermostat is 190 or so and the gauge is pegged in the red. In fact, the gauge has started climbing immediately when the motor is started and the IR shows temps of 110 degrees.

Is the VDO 310-105 and sender 323-095 still the correct part numbers for a 97? Is the sender a direct replacement or will I have to use an adapter?

What would make an electronic gauge go bad? Seems like the real issue would be some wiring problem between the sender and the back of the gauge.
Same thing happened to me....I regrounded the gauge and all good.
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  #3  
Old July 16th, 2010, 12:15 PM
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Interesting. I am a clueless in electronic stuff. Did you just reground from the back of the gauge? Where did you put the new ground?
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  #4  
Old July 16th, 2010, 02:05 PM
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John B.
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There is a ground wire on the back of the gauge. Check that it is good. You probably have a bad connection.
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Old July 16th, 2010, 09:16 PM
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Rich Campbell
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I ran a test ground right from the battary to see if it was the ground. As soon as I hooked it up my gauge was fixed. I couldn't find where the ground was bad so I just left it grounded to the battary until I look into it some more. Has been fine ever since.

I think my fuel gauge is also having issues so I will probably just rerun a new ground line to that as well. I'm sure they share a ground source behind the dash. I couldn't find it in the cluster fuk of wires back there so I just ran a new ground.
Kinda of half ass but it works fine.
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Old July 16th, 2010, 11:21 PM
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This thing has me pretty frustrated. I kinda did what you describe but instead of running it to the battery, I ran it to from the pin on the gauge to the frame. When I turned the motor over the gauge went all the way over to the 4oclock position. Then, I took the original ground, tighten up the connector, cleaned the pin. Now when I turn the key to the on position the gauge is where normal operating temp has always been but if I turn the motor over the gauge goes back up over the red line again.

I thought I was on to something with this ground idea because I noticed in the last few drives the speedometer fluctuates, which it never has, and thought maybe the gauges shared a ground and it was loose. Now, I have no idea.

Stupid Land Rover.
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Old July 17th, 2010, 06:07 AM
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Rich Campbell
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I would test it right to the the batt ground... and see it the same thing happens. I seem to remember having the same issues when I tried using a ground from someplace else..went straight up...have no idea why that would happen.
Not sure if we have the same problem but it is a quick test. If that falls maybe it is the gauge itself?
I also ran a new power line from the gauge to the sensor just to be sure.
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