2000 Malibu ? (one more!)

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koolkeithv@hotmail.com - 18 Oct 2007 02:08 GMT

A month or so ago I had the thermostat replaced after a breakdown on
the side of the road. Ever since I've had it changed my car is
running hot. I mean, the heat is oppressive. I took it back and
explained what was going on, they checked the thermostat, said it was
fine, and said that I had a pinhole leak in my head gasket that was
causing the heat. WTF? Is this even possible? They wanted $1700 to
replace the head gasket so I left.

My car will literally be 15 degrees hotter inside than the outside
temperature - with the windows down! I ejected a CD the other day at
it was too hot to hold (seriously). The heat is ridiculous!

Start her up and run her for five minutes and the temp gauge is at
half (it used to stay in between a quarter and a half, on average
after being run for a while). It now stays at half, or over ALL THE
TIME... any ideas?

Thanks again guys,
Keith

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Don Young - 18 Oct 2007 02:30 GMT

>A month or so ago I had the thermostat replaced after a breakdown on
> the side of the road. Ever since I've had it changed my car is
[quoted text clipped - 15 lines]
> Thanks again guys,
> Keith

Half scale on the gauge is about where a good thermostat should keep the
engine temperature. Your interior heat problem is caused by the heater
failing to shut off for some reason and not by the engine temperature.

Don Young

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koolkeithv - 18 Oct 2007 15:10 GMT

> <koolkei...@hotmail.com> wrote in message
>
[quoted text clipped - 27 lines]
>
> - Show quoted text -

Don, thank you for your response. It's not like the heat is on... no
air is blowing. Heat is emanating from the engine - almost like its
seeping through the dashboard and floorboards. Even if I do turn the
fan on to blow outside air, the air is only slightly warmer than the
air outside, not hot. I really wish I could describe this better...

-Keith

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Russg - 18 Oct 2007 16:00 GMT

"koolkeithv" <> wrote in message news:

> > <koolkei...@hotmail.com> wrote in message
> >
[quoted text clipped - 35 lines]
>
> -Keith

If your fan works, set the thermostat to coldest, no A/C. Set the blow
direction to front only or defrost. Turn the fan on 3 or 4. If the blow
air is warm/hot, then the thermostat is defective.
Sure heat comes from the engine, but it is hard to see how it gets in the
cab other than thru the heater core.

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