Temp sensor location on 2006 Chevrolet HHR

I am getting intermittent failure of the temperature to read and check engine light comes on. previous repair string indicated bad temp sensor. I need to know location on engine - i found two sensors on the top but not sure which one is correct. 2.4 L engine

by in Broomfield, CO on July 28, 2010
1 answer 1 comment
ANSWER by on July 28, 2010
My very best advice for instructions on this repair is to pay for a repair manual. You'll need the step-by-step and the diagrams. You can get even temporary access for a good price here: http://bit.ly/mitchell_repair_manuals_online
COMMENT by on August 05, 2010
i found the temp sensor - left (drivers) side back of the engine toward driver - I replaced it an now a week later same problem, temp wont register. Any ideas???
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does this need cleaned? The a/c does not work if the coolant temp gauge is not working.