See full version: Where is the fan sensor located on a 2007 chevy colbalt
You have two relays for fan controls, one located off of the wiring loom between the fans and one additional near the upper radiator hose off of the same loom. You also have a temp sensor that supplys info to your pcm, that is located just by the oil fill cap next to two pipes. Next you have 4 relays your engine compartment box. Hope this helps some.
I have a problem with the temperature going up. It's got water flow through the pump new thermostat all new anterfrezze what roung with it temperature going up to 240 dose the fan have a high and low
Either way, when the air conditioning only offers intermittent usage, it’s a good sign that the AC pressure switch is faulty. To become comfortable again, you will need to have the switch replaced.
Take the pressure sensor off and test the connection heading to the sensor from the electrical harness. Make sure your key is turned on to the accessories spot.
If you have some basic mechanical knowledge, you can follow these AC pressure switch diagnostic steps to figure out what’s going on. here
Step 2: Remove the switch electrical connector. here
Step 1: Install the new switch. Screw in the new switch, then tighten it until it’s snug. here
Step 3: Reinstall the negative battery cable. Reinstall the negative battery cable and tighten it. [links]
If you’d rather have someone tack the job for you, the team at YourMechanic offers expert A/C pressure switch replacement.
Step 3: Remove the switch. Loose the switch with a socket or wrench, then unscrew it. [links]
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