2006 4.7l jeep runs not coolant backs up in plastic refill container. Have replaced water pump and thermostat and flushed out radiator.what can I do??

ford_67

• 34 Answers
• Posted on Aug 23, 2008

SOURCE: just replaced the water pump,

Check to see if the thermostat is installed correctly there is a certain way it goes the cooling system. Since you have had a lot of parts replaced could have air trapped in system this can cause overheating as well. Drain radiator leave cap of and start motor add water slowly until radiator is at the level recommended. Does car have white smoke comming out exhuast pipe this would be good indication of a blown head gasket. Hope this helps

SOURCE: 1999 jeep wrangler very little heat

YOUR RADIATOR HAS TRAPPED AIR IN IT AND NEEDS T BE "BURPED".

SOURCE: My Jeep overheats while sitting idle. When I drive, the gauge goes down quickly. I have had thermostat and fan changed. I have also had the radiator flushed. What can it be?

we have a 2003 and it did the very same thing . Its called cooling fan relay it costs about 60.00 and is located behind the headlight assembly . not very hard to fix if you know anything about cars .

SOURCE: 1993 JEEP GRAND CHEROKEE 4.0

did you check rad 4 leaks and make sure all aluminum mesh is intaced beetween cores i had a jeep do same thing or could possibly have air pocket let run with cap off while circulating through block check fluid level add if nessisary also they sell a very good product called water wetter its a synthetic helps fluid flow freer good luck

SOURCE: Engine overheating at high rpms

check the casting on your replacement water pump..4.0l engines require a reverse rotating water pump..may be causing your problem.