Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
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is it still setting a code 14 after you cleared the code ?
if it still has a code 14 with a brand new sensor then the issue is more than likely the electrical connector at the coolant temp sensor
which replacing the connector will correct this issue
a lot of times the terminal crimp to the wire crimp inside the connector is where the wire is broken or making bad contact
with the key ON and unplugged one wire should be a good ground and the other should show @ 5 volts at the connector
with the ignition ON one wire terminal should show 5 volts and the other wire a good ground