Question about 2000 Ford Explorer

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Temp gauge is very erratic from cold to peg hot. engine not hot

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Consider replacing your engine coolant temp sensor. This is usually a fairly inexpensive part and is usually not to difficult to replace. If after replacing this piece you still have a problem consider an electrical issue. You may want to check the wiring harness to the temp sensor to make sure there is nothing going on with the wiring.

If this jump from cold to hot is followed by a slow return to normal operating temperature you may be looking at a thermostat that is sticking.

Posted on Nov 10, 2010

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Sounds like the temp sending unit is faulty.....

Posted on Nov 10, 2010

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Check out related help links with solutions to troubleshoot the problem:---
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Next, replace the thermostat with a winter (180-195 F) derivative.
Bleed the system accordingly, and keep me posted!

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1 Answer

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