Question about 1999 Chevrolet Suburban
Heater core is getting hot, but vehicle is not getting warm inside
If the heater core is getting hot, you could have a problem with a blend door under the dash or the HVAC controller which opens and closes the doors.
Posted on Jan 13, 2013
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Posted on Jan 02, 2017
A heater core only needs to be changes if it is blocked with rust or is leaking, a more plausible reason would be a stuck open thermostat in the engine cooling system. Also check under the hood for hot coolant in and out of the heater cores hoses, those are the small hoses going to the firewall and into the truck.
Posted on Nov 19, 2008
The heat and cooling air flow is controlled by small plastic vacumn
lines inside the dashboard. The main vacumn suppy for this comes from
the engine vacumn lines. So - Find what you are missing in your
Posted on May 07, 2009
SOURCE: heater core
These are not hard to remove the hard part is to get the two halves of the box open they are sealed together so what you need to do is to get a really sharp utility knive and cut along the seam and then this will allow you to split the box and remove the covere so you can get to the heater core.
Once the repairs have been made make sure that you reseal the two halves so that no water or air will get inside ok.
best regards michael
Posted on Oct 31, 2009
This is a very common problem with the 94, really common with the LT1. I have done everything I can think of with my Caprice, and lets just say I don't drive it in the winter anymore.
Posted on Jul 17, 2010
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