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How soon after starting does the car overheat?
Does it do it more in stop and go traffic, or on the highway?
which fan switch are you referring to?
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Other things to check for:
1) air or blockage in the system
2) bad fan clutch (what the mechanical fan spins on)
3) blown headgasket (you can get a kit from parts stores to check for combustion gases in the cooling system to check for this)
I hope that is helpful. Please let me know if you have further questions, or if I can clarify anything for you.
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no it is a kit that tests for exhaust gas in the cooling system. it changes color if they are present.
here is a link about it: CLICK HERE
Please let me know if you have further questions.
thank you in advance.
That's not really a bullet proof way to test, no. I would advise you to use one of the kits like I suggested. That will verify.
you are welcome
best of luck.