Question about 2001 Chevrolet Cavalier

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Tempurature gauge raising above 195 during the day

I've been having this problem for about a month now and I'm hearing it probably the thermostat in the car that needs to be replaced. Anyhow, I live in AZ and during the day if I am driving without the AC on the thermostat will go to one or two small notches above the 195 ( half way point ). If I turn on the AC, however it will normally drop from say the second small notch above the 195 to the first or sometimes back down to 195. At night, when driving with the AC off this does not seem to be a factor it's only during the day. I plan to get it into the shop by this Friday at the latest to have it looked at. I've had the car since it was new and have never had anything other then normal wear and tear issues with the car. It doesn't have any leaks at present nor has it ever. I'm very good at keeping and eye on that kind of thing and taking it in quickly.The car has a 2.2L (Non Flex Fuel) motor with a K&N cold air intake on it. I don't see that having much impact or any, but hey what do I know? that's why I'm posting this.

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Check the radiator cooling fan(s) is operating correctly at the specified cut-in temperature. If not, check operation of the fan control temp sensor switch and associated relay.

Posted on Jul 28, 2009

  • John Bloomfield Jul 28, 2009

    Check the radiator cooling fan(s) is operating correctly at the specified cut-in temperature. If not, check operation of the fan control temp sensor switch and associated relay.

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I have a 2007 Chevy Expreess 1500 van. When ambient temperature drops below say 80f outside I get a P0128 check eng code. If during the day the ambient temp raises above 8-85f the light will go out...


P0128 is a generic code to indicate that the engine isn't reaching proper temp. If it has
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