Question about 1997 Oldsmobile Bravada

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Need to replace the heater core -do I have to remove the whole dash to get to the old one ?

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  • teedyking Nov 19, 2008

    When I Turn On My Heater It Just Blows Out Cold Air....What Should I Do!

  • Papa Legba Dec 04, 2008

    My 2000 Oldsmobile Intrigue was just doing the same thing, blowing out cold air through the heater. I just had the thermostat replaced and it now works well. I've been getting moisture inside on the windows since it was fixed. The mechanic said that it might be the heater core. I'm hoping not because he said it would be around 1k to fix. I'm not mechanically inclined when it comes to cars so I don't think it's something I can tackle myself.

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Yes, you have to remove the whole dash. Find a friend, a Haynes manual, about 8-10 hours and a lot of patience. I had to do mine twice because the gasket we made caused the first a/m core we installed to fail. Use a paper gasket. If it is leaking antifreeze into the passenger floor, you can bypass the heater core to buy ome time. Cut the incoming and outgoing radiator hoses where they enter the firewall and join them together. You will not have defrost but it will work until you can come up with the cash for replacement. Replacement is just around $1k. If you do it yourself, the part is about $45 and the manual is like $20. Good Luck.

Posted on Jan 11, 2009

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I had a 94 Bravada and when I changed my heater core-I had to remove the dash. It was not a fun job.

Posted on Dec 27, 2008

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How to replace a heater core in a 2009 dodge journey


It will require several hours of labor just to get into the heater core. Its not so much the heater core replacement, its taking most if not all of the panels underneath the passenger side underneath the dashboard. Dpending on your car model, it may also require you to remove the glove box just to have access to the heater core.

In rare cases you have to remove the whole top dash board but most cars in general only require to remove panels underneath the dashboard on the passenger side. It's tricky to remove the heater core because it is well hidden behind many panels, a whole lot of screws to remove. Then you have to remove or cut the heater hoses in front of the engine compartment as those hoses are attached to the heater core.

I just replace the heater core in my old buick and it took some effort to undo all those panels and hoses and screws but i finally got it all done and heater works perfect. That repair at a automovtive repair shop would of cost me 350 to 400 dollars. I just spent 35.00 bucks for the heater core and another 12.00 bucks for new heater hoses and that was it, that and the intense labor involved to remove the old heater core. But i saved a huge bundle by doing it by my self, good luck.

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    • 1Remove the dashboard. The heater core in S10s is behind the main dashboard, and it must be removed to access the core. The front dash panel can be removed by unbolting several screws at the bottom of the panel, then pulling the panel away from the dash. Once this front panel is off, the primary dash can be unbolted from the firewall with four large bolts below the windshield. Several accessories may need to be taken out to unbolt the dash from the firewall, such as the radio or 4WD switches.
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    • 4 Unbolt the core from its mounts behind the removed dash panel. Several bolts might be difficult to reach, but once free from the mounts, the core assembly slides up and out toward the interior of the truck. Lay a towel down when removing the core, as come coolant might splash out.
    • 5 Insert the new heater core and bolt it into the mounts. The openings will fit into the holes provided in the firewall.
    • 6 Reconnect the heater core hoses, and re-attach the dashboard and front panel.
    • 7 Fill the coolant system with a 50/50 mix of antifreeze and water. Tighten the drain plug on the radiator, then fill it. Crank the truck up with the heater system on its maximum setting and continue to pour coolant into the radiator until it will not take in any more.


Read more : http://www.ehow.com/how_5201441_change-heater-core-chevrolet-s10.html

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When a heater core leaks, a new heater core is installed or the old one repaired.
Heater Housing
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f74-01.gif The heater housing is disassembled to get to the heater core. Heater Core
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3 Answers

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