Testing the temperature gauge in a 76 C3
Thread Starter
Racer
Joined: Sep 2009
Posts: 429
Likes: 2
From: Oak Ridge NJ
Testing the temperature gauge in a 76 C3
I have a one wire lead that goes to the temp sending unit located on the drivers side of the engine block between number #1 and #2 cylinder. Installed a brand new engine wiring harness and the wire plugs in as it should. The temp sending unit is also new.
Problem - the gauge is dead
I was told to pull the lead off the temp sending unit and touch to ground which should make the gauge max out with the needle going all the way to the right on the gauge.
It didn't happen.. The gauge is still DOA. ''How can I test this? (everything else works fine (with the exception of the clock which I don't really care about)
Mike
Problem - the gauge is dead
I was told to pull the lead off the temp sending unit and touch to ground which should make the gauge max out with the needle going all the way to the right on the gauge.
It didn't happen.. The gauge is still DOA. ''How can I test this? (everything else works fine (with the exception of the clock which I don't really care about)
Mike
Le Mans Master
Joined: Dec 2007
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From: McHenry Illinois
Burning Brakes
Joined: Oct 2008
Posts: 1,037
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From: Mobile Alabama
I have a one wire lead that goes to the temp sending unit located on the drivers side of the engine block between number #1 and #2 cylinder. Installed a brand new engine wiring harness and the wire plugs in as it should. The temp sending unit is also new.
Problem - the gauge is dead
I was told to pull the lead off the temp sending unit and touch to ground which should make the gauge max out with the needle going all the way to the right on the gauge.
It didn't happen.. The gauge is still DOA. ''How can I test this? (everything else works fine (with the exception of the clock which I don't really care about)
Mike
Problem - the gauge is dead
I was told to pull the lead off the temp sending unit and touch to ground which should make the gauge max out with the needle going all the way to the right on the gauge.
It didn't happen.. The gauge is still DOA. ''How can I test this? (everything else works fine (with the exception of the clock which I don't really care about)
Mike
Thread Starter
Racer
Joined: Sep 2009
Posts: 429
Likes: 2
From: Oak Ridge NJ
Mike
Thread Starter
Racer
Joined: Sep 2009
Posts: 429
Likes: 2
From: Oak Ridge NJ
I am guessing the gauge worked correctly before? If so, sounds like a problem in the wiring. Assuming you are getting power to the gauge (meter or test light on power terminal). Use a jumper connected to ground to touch the terminal for the sender. This will show if the gauge is working. If gauge works it is the wiring from the sender.
Mike
