Temp Sensor Faulty?

[Manxman]

Would a faulty temp sensor cause high idle speed ( 1000 rpm) and also cause the engine to race for a couple of seconds on start up? The temp gauge needle sometimes moves to the danger side of the scale and the audible warning bleeps for a few seconds. The system never uses any coolant. If it's the sensor, is it easy enough to replace? Is it in the top right, rear area of the engine looking from the front end? I never had any problems until my local ford dealer fitted a new timing belt kit and since then ther ehas been one problem after another.. More ibuprofen needed!!!!

[Willie Krashitt]

Hi,

 

Short answer is Yes. Mine was doing the racing start up too, however my gauge either didn't work at all or would go up to 90 as normal, then drop back to 50 and stay there. New sensor fixed the problem. See: where it has been covered before.

 

Check what colour yours is before you change it - you must replace with the same colour or it won't work properly.

 

For sale: 1-off 'blue' 2-pin sensor, used for 1 week only. Cost