Creedmoor 0 Report post Posted December 15, 2009 My defrosters fog the windows more than they clear them and I'm losing a small amount of water over time from the expansion tank. I suspect the heater core has a leak. So, on an all stock 1980 Toyota Corolla 4 door sedan, what's involved in getting to the heater core and are they usually fixable? I think I remember hearing that you have to take the whole dash apart to get to it (groan ) Quote Share this post Link to post Share on other sites
Ghost 0 Report post Posted December 15, 2009 You usually do have to take the whole dash apart, but before you do that find out about where the core sits on the firewall and try and find a alternative route.... Sometime you get lucky and find just a panel that needs to come out. But taking the dash apart doesn't take very long and guaranteed you'll have extra bolts to add to your collection Quote Share this post Link to post Share on other sites