Question about 1989 Jeep Cherokee

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Overheating I have a 1989 Jeep Cherokee Laredo v6 4.0l engine with auto-tranny. I replaced the thermostat, drained and refilled the radiator, etc. However, no coolant is reaching the engine itself. The radiator is pulling coolant from the resovoir, but nothing is being sent to the engine and the heat is not working. No appararent leaks, and the only unusual noise is when I run the a/c heater. Solid tranny and engine, just have the cooling issue. Any ideas? Bill

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  • pwilliams930 Aug 12, 2008

    1990 Jeep Cherokee overheating, but coolant not boiling out, replaced thermostat, but second fan doesnt come on. Worksif hooked to battery.

    Any ideas???

  • GLawson343 Aug 14, 2008

    1987 Jeep Cherrokee laredo will crank but will not start. He ran just fine until shutting it off one day and it will not restart.

  • Anonymous Oct 19, 2008

    i am having the same heating issues but i have a leak that looks to be coming from the water pump



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Your cooling system is air locked it need need to bleed it. The easiest way is by a 5/8" heater hose T and install it on one of the heater hoses. It make bleeding really simple.

Posted on Jul 30, 2008

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Drain your coolant again, and fill in it on the upper hose not on puke tank. check the water pump also for rotation.

Posted on Sep 06, 2008


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2 Answers

Recently had a new water pump fitted to my jeep Cherokee but it's still overheating and the heater in the car doesn't work. Any idea what might be causing this

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This is s common fault after replacing thermostat, there is a system bleed screw located on radiator which will need bleeding? If you warm engine up"only warm not hot" then locate bleed screw and slacken off, not unscrew all the way? You will hear a hissing noise of the air in you system. Very similar to central heating radiator in a house! Once you have water coming through then tighten up bleed screw/bolt and give engine a bit of a run. Hope this helps

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I have a 1997 Jeep Grand Cherokee Laredo that the top hose that leads from the radiator to the thermostat blew the other day. I replaced the hose with no problems but the gauge in the jeep keeps indicating...

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1989 jeep laredo overheating

Can't tell you where to go, but sounds like you likely have a plugged up radiator...the insides of the 4.0 engines rust considerably and generate a ton of loose rust which prevents proper flow of coolant in the core. Most times it can be flushed but sometimes it gets in there so tight that it's easier to just change it.

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1989 Jeep cherokee Laredo over heating and the fan wont kick on, plenty of water in the radiator? How do I check to see if it is the thermostat sticking closed?

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