Hello together,
Today I installed a NOS Stewart Warner temperature gauge. Unfortunately it also doesn't work as it should. As soon as I turn the ignition switch to the first position (power), after about 3 seconds, the gauge's needle starts to move to the right (slowly, but steady), until it reaches over 240°F. And there it stays forever. When I shut the car off (ignition switch tilted, no current), then after a while the needle does move back to the left side, until it reaches 100°F.
It doesn't show the correct temperature of the coolant. My engine was still cold, when it showed this behaviour.
I also checked the temperature sender, which seems to be the 1957 style. I have also a NOS 1957 temperature sending unit, but I couldn't manage to remove the old temperature sender, seems to be rusted-in. I also unplugged the wire and plugged it in again. It doesn't solve the problem.
But before I remove the temperature sender (which is very hard to remove, cause it is rusted-in), I would like to rule out other causes of this problem.
This even happens, when I remove the wire that attaches on the back of the temperature gauge..(so the needle moves to the right, wihout having the sending wire attached)
Does somebody have an idea what causes the needle to move to the far right, just after turning the ignition on (this starts after 3 seconds to move to the far right position of the temperature gauge).
Thank you very much for any ideas.
Best regards
Rudy
Today I installed a NOS Stewart Warner temperature gauge. Unfortunately it also doesn't work as it should. As soon as I turn the ignition switch to the first position (power), after about 3 seconds, the gauge's needle starts to move to the right (slowly, but steady), until it reaches over 240°F. And there it stays forever. When I shut the car off (ignition switch tilted, no current), then after a while the needle does move back to the left side, until it reaches 100°F.
It doesn't show the correct temperature of the coolant. My engine was still cold, when it showed this behaviour.
I also checked the temperature sender, which seems to be the 1957 style. I have also a NOS 1957 temperature sending unit, but I couldn't manage to remove the old temperature sender, seems to be rusted-in. I also unplugged the wire and plugged it in again. It doesn't solve the problem.
But before I remove the temperature sender (which is very hard to remove, cause it is rusted-in), I would like to rule out other causes of this problem.
This even happens, when I remove the wire that attaches on the back of the temperature gauge..(so the needle moves to the right, wihout having the sending wire attached)
Does somebody have an idea what causes the needle to move to the far right, just after turning the ignition on (this starts after 3 seconds to move to the far right position of the temperature gauge).
Thank you very much for any ideas.
Best regards
Rudy
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