heater core
March 20th, 2011 | 07:55 PM
#2
Moderator
Joined: Sep 2006
Posts: 13,844
From: Medford, Oregon
Hi Charlie
The way I like to do it is remove the right front tire, then remove the inner wheel well which exposes the fasteners to the under hood cover of the heater box. Joe P. mentioned in a previous thread that if the car isn't from a dry climate it can be hard to remove the inner wheel well bolts. If they are rusty the clip may rotate and break off a portion of the plastic wheel well. So evaluate that before you tear into it. You will need to remove the fasteners from the engine compartment side to get the underdash box out. Most will be speed nuts on studs so you'll need a deep socket for them, I think 1/2". I know on the AC box some of them are bolts but don't remember if non-AC is the same. Once you remove those fasteners the under dash box will be free and can be pulled out and down. Before you drop the under dash box prepare to have antifreeze spill on your floorboard. If you have the carpet in the car you might try spreading a sheet of plastic to catch it, maybe rags on top of that to soak it up. Once that box is on the floorboard you can see the core and the fasteners that hold it in. Pretty straight forward but as always all it takes is a rusty bolt or worse a broken one that can turn a simple project into a pain! Good Luck! John
The way I like to do it is remove the right front tire, then remove the inner wheel well which exposes the fasteners to the under hood cover of the heater box. Joe P. mentioned in a previous thread that if the car isn't from a dry climate it can be hard to remove the inner wheel well bolts. If they are rusty the clip may rotate and break off a portion of the plastic wheel well. So evaluate that before you tear into it. You will need to remove the fasteners from the engine compartment side to get the underdash box out. Most will be speed nuts on studs so you'll need a deep socket for them, I think 1/2". I know on the AC box some of them are bolts but don't remember if non-AC is the same. Once you remove those fasteners the under dash box will be free and can be pulled out and down. Before you drop the under dash box prepare to have antifreeze spill on your floorboard. If you have the carpet in the car you might try spreading a sheet of plastic to catch it, maybe rags on top of that to soak it up. Once that box is on the floorboard you can see the core and the fasteners that hold it in. Pretty straight forward but as always all it takes is a rusty bolt or worse a broken one that can turn a simple project into a pain! Good Luck! John
March 21st, 2011 | 12:27 AM
#3
Registered User
Joined: May 2008
Posts: 3,285
From: Austin, Texas
Be very careful when you pull out the interior metal box (away from the firewall). The firewall pad (rubber covered jute) can snag on the studs and the rubber part can tear easily. If your firewall pad is original and intact you will want to preserve it.
Slowly pull it away and check to see if the firewall pad is sticking to the box or studs. Sure, you don't see most of the pad but the part you do see (the narrow strip running under the interior firewall box) is the part that will tear the easiest.
Slowly pull it away and check to see if the firewall pad is sticking to the box or studs. Sure, you don't see most of the pad but the part you do see (the narrow strip running under the interior firewall box) is the part that will tear the easiest.
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