Question about 2010 Jeep Commander
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Posted on Jan 02, 2017
It appears we have an Air lock scenario and you will need to perform a system Bleed.
Park the vehicle on level ground, when cold remove coolant filler cap, start engine and leave to idle, turn heater on full and blower to max. When engine reaches operating temperature watch and listen near coolant filler, keep clear as gurgling and hopefully a boil over should occur. Top up with very warm coolant and wait as it may do it again.
Check for heat inside vehicle if warm replace coolant cap but keep an eye on temperature gauge as the ~Air lock may have moved on from heater matrix/core so proceedure needs to be carried out again from COLD.
If persistent boil ups/over attention must made in the cylinder head
or gasket area, or possibly water pump?
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Posted on Feb 05, 2009
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
Posted on May 13, 2009
replace your cooling fan motor relay because if you dont eventually your radiator will explode and this will cause your engine block to crack and then if your fan isn't blowing the engine will continue to overheat and the engine will seize and then you need a new engine. A cooling fan motor relay is around $30.
Posted on Jul 26, 2009
Can you see the cooling fans come on? When the engine gets to 212 degrees the fans should come on. To test the fans, with the engine running turn the A/C on high, the fans should come on .
The system also has a 212 switch that screws into the intake manifold. This is what turns on the fans with no A/C.
I hope this helps you.
Posted on Sep 06, 2009
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