Replaced water pump
I'm not really familiar with JEEP mechanics but if you've replaced your water pump and it's still overheating with full water/coolant level, you should check the thermostat; when it fails, it's a common cause or overheating in all kind of cars
I'm attaching some links to Youtube tutorial about replacing thermostat in a Jeep but you can expand your Google search using terms
Youtube replace thermostat JEEP Liverty
https://www.youtube.com/watch?v=Y3NpLdG993U
Jeep 4 0L straight six thermostat replacement
Thermostat Replacement Overheating fix Part 1 Jeep
How To Change the Thermostat in Jeep Wrangler
2002 Jeep Grand Cherokee Thermostat Replacement
Replacing the radiator thermostat in any Jeep Cherokee Jeep liberty Jeep...
Heres a place to start, but you might not like the last comment on it.
http://www.jeepsunlimited.com/forums/showthread.php?501490-Engine-overheated-died-at-idle-won-t-start-anymore
SOURCE: 94 jeep wrangler overheating
Have the cooling system pressure tested. If it holds pressure, that's a good thing. If it doesn't hold pressure, you may have a leaking head gasket. What may be happening is the crack in the head gasket could be blowing hot air into the cooling system causing it to overheat.
SOURCE: 2002 jeep liberty has very
sounds like a head gasket problem. A minor leak there will pump compression into coolant and force it out of heater core. Any unusual steaming from tail pipe? Also: if radiator was flushed "in car" sometimes debris does not come out. Try flushing with it out of the vehicle. Jeep radiators are notoriously small for their application if not at at least 90% they will not work correctly.I'd look at the hg first though otherwise, your symptoms seem to be contradictory.
SOURCE: how to change out thermostat on 2002 jeep liberty?
Hi:
You don't need to remove the water pump. The thermostat is located under a housing, at the engine end of the upper radiator hose.
All you need to do is drain your radiator, remove the upper radiator hose, and remove the thermostat housing. Clean it up well, and replace all gaskets before reinstalling!
SOURCE: 2006 jeep liberty cigarette lighter problem
its probably not the lighter itself, it's probably lost power. check the fuse for the cig lighter and see if blown. if it is, replace. if it blows immediately you have a dead short. if not, pay attention to when it stops working. could be a problem with whatever you are plugging in, or something else on the circuit
SOURCE: My 2003 Jeep Liberty heater is blowing cold air
Water level perhaps. When you hit the accelerator the water volume increases. Check your water level and make sure that your thermostat is opening and closing properly. Water level I'm thinking
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