Coolant temp sensor location for 2005 pontiac g6 3.5L

SOURCE: coolant temp sensor location for 2007 pontiac g6

On left end of rear cylinder head

SOURCE: HELP!! Having electrical issues with my 2005 Pontiac

electical is hard to diagnose with out being there. i would treat each problem seperately. first you will need to test the engine temp gauge sending unit. in a dealership this is easy with a scanner they can run a sweep test to se if the gauges are responding.you don't want the engine to over heat if the gauge is not working. next problem the dome light should be easy to fixe does the dome light work with the dome switch?remove the bulb and with the doors open and switch on check for voltage, if voltage check connection and or replace bulb. if no voltage check fuses for voltage.last will need to have the dtc po243 checked out by a repair shop. i hope this will help.

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Greg Bernett

• 2993 Answers
• Posted on Dec 01, 2009

SOURCE: where is the coolant sensor located for a pontiac grand am gt

It looks like this with a connector to it and is on the side of the engine block:


Look right under the radiator hose.