It could be that the thermostat is stuck or that the radiator has trash in it and needs to be flushed correctly. If you flush the radiator go to wal-mart and by hyper cool. this will cool the engine 20 degrees cooler than normal.
sell jeep and just buy the manual one
it could be the factory alarm system
61 mph I've been over 100mph in mine. 4L Auto 1995
Yes. It has a heater core in the dash that has air blown over it to heat the passenger compartment.
fuel pump
no withou a freeze plug the water will escape the engine and cause it to over heat.
There are several reasons a 2002 Jeep Liberty could overheat. Some possible reasons are low in coolant, a bad thermostat, or the head gasket went bad.
Yes it can damage the bearing in the idler pulley, alternator, water pump, or power steering pump.
The A904 in a Jeep Wrangler should hold about nine quarts if empty. If doing filter service start with four. You do not want to over fill.
Fan has a problem, probably a bad fan clutch. If you can spin it easily when the engine is off it is most likely bad.
the planetary gears are locking up in the tranny. your trans case could be getting hot ,over heating the tranny or your tranny could need flushing. this is serious i wouldn't drive until it is fixed if you like your jeep and don't want to spend alot of money.
System airbound and needs to be purged