Inlet connection twisted off
You will have to remove the dash and the heat/air box to get to the evaporator core. Not a job for the un-experienced.
SOURCE: 1989 lesabre engine codes
26 is a quad driver failure, 41 is a cam sensor failure. I can give you a test procedure for 26 but for 41 you likely need to replace the magnet that is in the cam gear for the cam sensor pick-up.
SOURCE: A/C EVAPORATOR HAS A LEAK .NEED TO REMOVE AND REPLACE
You must remove all refrigent from the ac system using a Approved container for removing ac refrigent it is illeage to release refrigent into the air if you take this to your local garage they can drain this for you for short money. After drained using flare nut wrentches remove the steel lines from the unit unbolt the unit and pull it out. reverse this procedure when finshed and racharge the ac with the correct amount of refrigarent
SOURCE: 1994 buick lesabre heater core removal
The heater core is located under the dash, in the center. The container holding the core looks like a black plastic box. Remove the ash tray for easier access. You may have to also remove some other covers under the dash. You must first drain the radiator then you have to disconnect the hoses. There are two hoses connected to nipples of the heater core that go thru the center of the firewall. Remove the screws that hold on the cover to the heater core. Then you should be able to get the old one out. There might be a couple of other minor steps but I'm sure you can figure them out. For re-installation just go in reverse order to put it all back together.
SOURCE: Where is the A/C evaporator drain at on my 2002
Just below the heater box on the fire wall passanger side its a little black hose approx 2 inches or so.
SOURCE: how to remove 2000 transmission buick lesabre
If you are asking..... you cant/should not do it. Its heavy, awkward, and not possible with out proper tools and equipment.
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