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plugged coolant temp sensor

Hey, I'm no mechanic but I thought I would take out coolant temp sensor thismorning since my gauge in dash never moves. I figured it must be the sensor. Well, I now know for sure I need a new one. As I was loostening it it snapped in two! Pain in the ass getting the lower half out! (was still threaded in thermostat housing). Anyway I had a 30 minute drive home so I just plugged it with a bolt and a little loc-tite. Seemed to work! How long can I drive this way? It's Sunday and can't get part till end of next week. O.K to drive this way a few days?
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Remember that the ECU uses the sensor too, so with the sensor missing it will assume the worst (turning the fans on max speed all the time for example).

But why take it out if you didn't have a replacement to put back in...?
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The sensor usually fails safe and reads hot. It's more likely that you need a new thermostat rather than just the temp sender.
It won't do any harm to continue as you are, just maybe poor mpg. An infrared thermometer in your tool box is good for assessing this sort of problem. The thermostat comes as a unit with housing and temp sender. This is probably what needs replacing. Be careful you replace with one that has the same plug for the sender.
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Originally Posted by dgmayhead View Post
The sensor usually fails safe and reads hot. It's more likely that you need a new thermostat rather than just the temp sender.
it's a gt, not a 156....
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coolant , plugged , sensor , temp

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