[jciam]

Where is the temperature sending unit located on a 97 Odyssey?

thanks

 

[mjody]

For the gauge or the cooling fan?

 

[jciam]

For the guage - assuming sending unit is the problem. guage takes a long time to move and then drops back down to zero after a while.

 

[mjody]

Sending unit rarely fails. Rarely. Is the thermostat working?
The ECT sender is under the distributor and is a single wire

 

[jciam]

Assume thermostat is OK since heater is working properly. A mechanic friend of mine told me it was probably the sending unit.

 

[mjody]

My shop manual says 137 ohms at 133F and 46-30 ohms at 200F.

So it is like a good woman, the resistance drops as it heats up.