Question about 1989 Jeep Cherokee

2 Answers

Over heating 1989 jeep cherokee over heating. changed out thermostast and still over heating

Posted by on

2 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert that has over 500 points.


    An expert who has answered 200 questions.

  • Jeep Expert
  • 389 Answers

Managed to fix mine by replacing the bottle and cap and installing a bypass filler/burper , cut the hose in half and install with a few clamps then fill radiator from there,best of all you can just connect the water hose to it to fill when draining and refilling.(it comes with directions)i put mine in the hose that comes off the goose neck(thermostat)to heater core.this way u dont get air/steam pockets which can cuase over heating.too

Posted on Jun 12, 2010

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Jeep Master
  • 17,970 Answers

Several things cause Cherokees to overheat...the biggest problem lies with the overall design of the coolant system itself, namely adding fluids to a reservoir rather than directly to the radiator. I've had this problem on-going for most of this year and have replaced everything so far.

Leaks began from a faulty lid on the reservoir which eventually led to it blowing off while driving. Found a used reservoir at wrecker for 5 bucks without lid, then had to purchase a lid from the dealer for 13. It also shows up black oil, which shows high running temps..which was not indicated by the temp. sensor (unplugged it). Over the summer, had several problems with running at high temps including having the car not start at all. In conclusion...the rad was plugged causing the coolant to not ciruculate and finally blew a hole through the front of it. ...replacing it tomorrow. The high heat temp of the car was also causing the Crankshaft Sensor to fail... solved this by resetting the computer.

With the key on but vehicle not running, disconnect the negative battery cable for about a minute. This should reset the computer until you can get it serviced or moved to a repair shop. Mine ran fine as long as I didn't go far, or run it for more than 30 minute trips...which is good since I'm in a small town. Now that the weather has gotten more problems with it not starting...but the rad will be changed tomorrow. Have also already changed the water pump & thermostat, but the latter will likely have to be replaced since it's been running hot all year.

Hope help.

Posted on May 05, 2010

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

How to remove front brake pads from a Jeep Cherokee 1989 ? Seems to be different from Cherokee 1991.

This should help Tim:

Oct 16, 2010 | 1989 Jeep Cherokee

2 Answers

Fuel pump 1989 jeep cherokee

should be just under the rear drivers side door.

Oct 31, 2009 | 1989 Jeep Cherokee

1 Answer

I have a 89 jeep cherokee pioner, no heat!!

if the blower motor isnt working you would have no air flow till driveing,easy way to check it is to remove it connect the wires back and turn it on,but be carefull and hold on to it tight,as for removal its not to hard just need to the location its on the passenger side firewall.

Oct 13, 2009 | 1989 Jeep Cherokee

1 Answer

My car keeps staling

sounds like your fuel pump volume is insufficient. change fuel pump

Sep 28, 2009 | 1989 Jeep Cherokee

1 Answer

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?

when it's overheating check to see if the lower radiator hose is hot. if not therm is bad. If OK, check temp sensor on thermostat housing. signal from there goes to the computer, then to fan relay to turn on fan.

May 09, 2009 | 1989 Jeep Cherokee

1 Answer

1989 jeep cherokee stulling

catalenic convertor dont buy one try to remove it and test it first could be pick up coil in the distributer fairly cheep you may want to try that first 

Mar 24, 2009 | 1989 Jeep Cherokee

1 Answer

Heater hoses getting hot and raditor hose is not

first check to make sure there is the right amount of coolant in it check the radiator cap what I mean is that it is holding the right pressure if it is 16lbs then it takes 16lbs of pressure for the thermastat to open also put on a glove and while the engine is running and it gets up to temp squeeze the upper radiator hose and if it opens up in your hand that is a sign the water pump is still working check the condition of the drive belt

Jan 18, 2009 | 1989 Jeep Cherokee

2 Answers


gas pressure problem start to change the gas filter get the gas pressure tested thanks pierre

Jul 05, 2008 | 1989 Jeep Cherokee

Not finding what you are looking for?
Cars & Trucks Logo

100 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts


Level 3 Expert

75822 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Kevin Daniels

Level 3 Expert

1455 Answers

Are you a Jeep Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides