Question about 1999 Chevrolet K1500
Thats a real job. The heater core is in the case that is behind the glove box. Pretty much the dash has to come out so you can separate that case to remove th heater core.
Posted on Oct 04, 2009
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Posted on Jan 02, 2017
Its located under the dash, just behind the glove compartment. From what I've read, you have to pretty much remove the entire dash to get to it.
Posted on Mar 11, 2009
check closer to just underneath the firewall--it could be a smaller problem than a heater core--Ford 4.6--5.4 engines have a tube just underneath the intake manifold that the rubber hose goes bad and it will leak towards the back of the engine.Lets hope so-what i hear its very expensive to change a heater core in an Expedition.
Posted on May 01, 2009
I believe on this model 1500/2500 gas w/ac that you have to first evacuate the a/c system and then remove the HVAC module [fancy wording for the entire heater box assembly] then remove the core from it once you have the assembly out of the cab. I also believe its about a 6 - 7 hour job and not one you'd want to try on your own unless you have quite a bit of mechanical experience behind you as it's not an easy one to do. It's also very easy to damage the new core when reinstalling the assembly back in the cab which will truly wreck your day if that happens!
Posted on May 18, 2010
SOURCE: i am leaking anti-freeze in
it prob isnt the heater core usually when that goes u blow antifreeze steam into cab from heater vents. prob water pump or pin hole in radiator line if from the front of the engine or bad gaskets or bad freeze plugs if from the rear also check ur thermostat to make sure it working prop because u could simply be blowing out ur over flow line cause **** is plugged an over heating
Posted on Apr 20, 2011
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