Question about 1995 Chevrolet Caprice
What if both hoses are hot. and on idle heat comes on but driving it's blows co
Posted on Jan 24, 2009
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
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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Posted on Jan 02, 2017
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