woodeye
- Reaction score
- 13
- Thunderbird Year
- 1956
I'm hoping if I list the circumstances of how my temp gauge is working you might be able to help me determine where the problem lies.
! With the key off my gauge reads 3/4 the way to hot
2 With key on gauge still reads 3/4 to hot.
3 With key on and wire disconnected from sending unit it still reads 3/4 to hot.
4 With key on and wire grounded to motor gauge goes all the way past cold. If I turn key off with wire still grounded gauge stays below cold.
5 If I turn key off and un-ground wire gauge goes to 3/4 way to hot.
6 Key on and wire on gauge it reads 3/4 hot.
With key off should gauge read hot or cold or somewhere in between? Where it was when key was turned off?
Sending unit looks relatively new, clean.
Does it sound like a faulty sending unit. Is there a way of checking if the sending unit is working using hot water and a tester. (OHM meter?).
Thanks
! With the key off my gauge reads 3/4 the way to hot
2 With key on gauge still reads 3/4 to hot.
3 With key on and wire disconnected from sending unit it still reads 3/4 to hot.
4 With key on and wire grounded to motor gauge goes all the way past cold. If I turn key off with wire still grounded gauge stays below cold.
5 If I turn key off and un-ground wire gauge goes to 3/4 way to hot.
6 Key on and wire on gauge it reads 3/4 hot.
With key off should gauge read hot or cold or somewhere in between? Where it was when key was turned off?
Sending unit looks relatively new, clean.
Does it sound like a faulty sending unit. Is there a way of checking if the sending unit is working using hot water and a tester. (OHM meter?).
Thanks
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