My 2000 lincoln ls has a check transmission light on. the dealer told me it was only a bad sensor. But i tried taking it up mount lemon and the transmission overheated and completly stalled out. i let it cool down and it drove fine. it has been doing okay but sometimes shifts late from 1st to 2nd

SOURCE: lincoln ls overheating

Cheap try is new radiator cap. If it cant pressurize the system the boil temp lowers considerably. If put new cap on and still over heat could have bad head gasket or a blockage in radiator...Cap is common and 10.00 to fix....

SOURCE: 2000 Lincoln ls overheating

There is a hose on the side of the coolant resevoir that has a straight blade screwdriver fitting in it. Open the fitting and this will bleed the heads on the LS. Without opening this you will never get the air out of the head, trust me.

SOURCE: 2002 Lincoln LS V8, gear shift shows E, check transmission light

sounds like tranny computer is bad take it to a grage and have a computer put on it cost about $50.00 to do this

SOURCE: Lincoln LS 2000 V6 overheating after reparing intake manifold lea

Couple of items you need to check. Make sure that your radiator is flowing properly. Often after sitting dry, blockages harden up and flow less than before, overheat originally before repair can also free up debris inside engine and add to plugging of core. Make sure that fans are operating especially with ac on. If you did not change thermostat during repair, change it. Not often but they can sometimes partially open, restricting flow. Also make sure that coolant is at correct concentration (50/50) and that there is no air trapped in the system.

SOURCE: Lincoln Navigator transmission problem

check and replace filter and fluids just like oil it tends to burn up and blacking and needs to be changed and flushed checking your tranny fluid it should be a red color not a dark red or with a black tint