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Why doesn't my water temperature gauge in my 88 5.0 mustang work?
Wiki User
∙ 11y ago
The first and easiest thing to check is going to be the Water Temperature Sensor or Sending Unit located on the block, usually by the thermostat housing. If you remove the sensor, place an Ohmmeter on the output leads and then warm in up in hot water. Your resistance should change as the temperature rises. If the sensor reads 'open' or doesn't change, replace the sensor. Otherwise, your problem lies in under the dash.
That won't work..there's only one lead going to the sending unit. You can clamp one ohmmeter lead to the threaded terminal but to check resistance where do you put the other meter lead? Best bet is to purchase a new sending unit form the dealer. They're only about $15.00 and will take about 15 minutes to change. The sending unit is located to the right on the lower intake manifold, just next to the distributor...
Wiki User
∙ 11y ago
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