Question about 1995 Chevrolet Caprice

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No heat the heat in my 1995 chevy caprice will not work. the air blows but only cold. I have changed the thermostat and at first it was hot air then right back to only cold. i have been told that it might be the heater core but i have also been told that if it was the heater core it would leak on the passenger floor board (it doesn't) and that it never would have blown hot air. please help, i have two kids and it is getting very cold. thank you.

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  • stirgis Jan 18, 2009

    I have the same problem with my 1996 chevy caprice. But if I rev the engine I get hot air. Could it be a vacume leak? Where is the best place to look for the vacume leak? Thank you.

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What if both hoses are hot. and on idle heat comes on but driving it's blows co

Posted on Jan 24, 2009

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I have a 95 caprice, it happen to me also just back flush heater core and it will work fine
try this before you go and buy one trust me it works

Posted on Nov 25, 2008

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First. A heater core does not have to leak to not work. It can be plugged. It operates the same as a readiator.
Second. I would look more into your air blend door openings. There are vacumn operated diaphrams under the dash area that open and close , depending on what you type of temperature you want in your car. If one is stuck open allowing cold air to enter the car, that's what you are going to get.

One of our best diagnosistic tools was after the engine was fully warm, we would feel the heater hoses going through the firewall in the car. One should be cold, the return and the other should be very warm. This is the hose that delivers the warm water to the heater core.

If both hoses are cold, your problem is in the engine. If one is hot, the problem is under the dash.

This is a great rule of thumb no matter what type of vehicle one owns.
Bill, ASE Master Technician

Posted on Nov 23, 2008

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