Question about 2001 Jeep Cherokee

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2001 Jeep Cherokee Classic 4.0 6 cyl overheated. Had thermostat replaced, radiator flushed, altenator replaced (split in half). Took whole radiator out found leaks from corroding metal and JB welded them. Now coolant is circulating through system and making it into engine, however there is a new problem. The engine is knocking and rocking pretty bad.There is also a lot of black oil at the bottom of the motor. At first I was told my head gasket went, then I was told the whole engine head has to be replaced and I would be better off finding a new car. I really love the car and would like to have it fixed especially since I put so much work into it in the first place, any suggestions?

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  • Jeep Master
  • 75,005 Answers

Head gaskets do not make black smoke it is white and smells sweet, is that the case?

Posted on Mar 31, 2017

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Posted on Jan 02, 2017

  • 4 Answers

SOURCE: it is a 1999 jeep cherokee

Try checking the cooling fan clutch..if it is defective, it may cause the jeep to overheat..especially in warmer weather!

Posted on Feb 03, 2009

  • 1 Answer

SOURCE: 98 cherokee sport, 4.0, it's overheated

i change the radator get a new one it fit the problem

Posted on Aug 19, 2009

  • 202 Answers

SOURCE: I have a 2001 jeep grand cherokee losing antifreeze no leaks.

good point there is a good chance this has a cracked head

Posted on Nov 17, 2009

roniecon
  • 6826 Answers

SOURCE: I Have a 98 jeep Cherokee classic i have replaced

If the fan is coming on,then the radiator,is bad,or the engine ,has a crack between the valves,in the head.

Posted on Apr 23, 2010

airjer995
  • 5332 Answers

SOURCE: 4.0 liter 6 cyl 2000

Either there is still air in the cooling system or you are correct that the headgasket has failed.

Running with the cap of for at least 20 minutes should clear the air out of the cooling system. If it continues to bubble after that than the bubbles are likely combustion gases sneaking by the head gasket.

Let run it with the cap on and let it start pushing coolant into the overflow. Shut it down and smell the coolant reservoir. If it smells like exhaust it is the head gasket.

Posted on Oct 18, 2010

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Did you make sure you filled the radiator up and got the overflow tank up to the correct level? Sometimes when you flush and drain the system and fill it back up air pockets can get trapped in the system. Start the jeep up with the radiator cap off and wait for the coolant to start flowing and when the air pockets make their way through they will escape and you can add more antifreeze.

Also, did you make sure you installed the thermostat so it is facing the right direction?

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1 Answer

2001 Jeep overheating


Take out the thermostat and read it for temp. Verify its the right degree thermostat for your model. Hope it helps.

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This means your thermostat is bad. Needs to be replaced. Also do coolant flush.

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Vapor lock in the system look for a bleeder screw on the t-stat housing and check the fan

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