Question about 2002 Jeep Grand Cherokee

1 Answer

My 2002 jeep cherokee laraedo is overheating when idling. The radiator fan stopped working. I tested the fan and it is ok. Where do I look for the problem.

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,033 Answers

You need to find out if the fan relay is good, pull the relay out for the fan and check to see if you are in fact getting voltage to the fuse/relay box at that location. But you could have a bad temp sensor, the fan would not know to kick on at a certain engine temperature. before replacing parts, it's best to find out for sure you're not losing voltage somewhere. The parts are not too expensive but no need in changing good parts. It's hard to really pin point the problem with out being there to test. Good Luck

Posted on Dec 31, 2010

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
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.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

1999 grand cherokee laredo overheating when idling for 15 min. or so. Not when driving, everything ok. radiator replaced about 8-9 months ago, water pump pretty new, and extra electric fan worked on about...


Chanches are it is probably the fan. Anything over 15 miles an hour the fan is no longer needed. I would get a cheap hydrometer and make sure your antifreeze is still good.

Oct 18, 2012 | 1999 Jeep Grand Cherokee

2 Answers

It overheats when in traffic ior when it is idling


I have fixed my own 2002 Jeep Cherokee twice for the overheating issue. Overheating can be caused by a number of different problems, but one of the most notorious problems for the Jeep is the 'radiator fan relay switch'. When the temperature thermostat goes over 210, it tells the relay switch to turn on the radiator fan to cool down the engine. If that relay switch isn't working, the fan never turns on and thus your engine overheats. Here's a simple test to check if this is your overheating problem:
1. Start up your Jeep, open the hood, and let it run to the point where the temperature gauge on your dashboard creeps past 210.
2. Once it goes past 210, go over to the engine and see if the radiator fan kicked on. (the radiator fan is right behind the grill, circular with big plastic blades) If yes, then the relay switch is working. If no, then you probably need to replace the relay switch or the radiator fan motor is bad. But more than likely, it's the notorious relay switch.
3. Turn off the Jeep asap to avoid damaging the engine.

You can purchase a 'radiator fan relay switch' from most Jeep dealerships if they have a service dept. It should be around $75.
(I saved over $700 by not taking my Jeep to an auto shop to fix this) To change out the relay switch, you need to take off the passenger side front headlight. There's a black plastic guard behind the headlight and the relay switch is located under/behind that guard. If your Jeep ever experienced this problem before, you may see a cut-out where someone replaced this part before. If there's no cut-out, you can check out this link to see a picture of where to cut.
http://rigs.corequipment.com/cebby_WJsite/cooling.htm#relay

Once you switch out the part, you should be golden.

Mar 24, 2011 | 2003 Jeep Grand Cherokee

2 Answers

2004 jeep grand cherokee overheating


check the thermostat or your radiator might be stopped up

Apr 14, 2010 | 2004 Jeep Grand Cherokee

2 Answers

Overheating while Eating


Bad themostat, dirty radiator (the front of it), corroded interior core of the radiator, weakening water pump, bad radiator fan.....just to name a few. More than likely? Low antifreeze level, or the thermostat.

Mar 06, 2010 | 2002 Jeep Grand Cherokee

3 Answers

Vehicle is overheating


electric fans or belt driven? if electric are they kicking on?

Feb 22, 2010 | 2003 Jeep Grand Cherokee

1 Answer

I have a 2002 Jeep Grand Cherokee Laredo with the


If you put the thermostat in correctly (spring towards the engine) that should be OK. Likely if the water pump wasn't leaking or had a bad bearing, you wasted your $ on that.
If you re-filled it and did not have the heater on high heat, you may have some trapped air in there. But, still overheating says another thing. If you have a blown head gasket, it can pump compression into the cooling system and drive the coolant from the core. It will also overheat. You can have that tested at most any decent shop that will do a hydrocarbon test to find that.I think someone makes a chemical test kit for that but not sure if it's very expensive or not. White smoke from tailpipe will also be an indicator as will be any coolant in the engine oil or coolant on one or more spark plugs. If it turns out that it has a head gasket problem don't stop looking for problems as often a faulty fan or obstructed radiator can cause the initial overheat that caused the gasket to fail.

Jan 16, 2010 | 2002 Jeep Grand Cherokee

2 Answers

My jeep grand cherokee started overheating at idle


try the water pump - first - make sure the radiator is really full - take the cap off cold and fill - if it looks full - start and run 8 minutes or so - then fill it up - look at ur fan belt - is it tight - tight is about how much pressure u use to make a firm hand shake with little movement - any movement over about an inch is loose - when the jeep warms up the belt can slip and not even make a noise - - new materials don't always squeal. - then be sure ur water pump is ok - they go slowing - the fins wear down - one more thing is the radiator - u don't say how many miles or what maintenance schedules you have or not so that's it for now

Dec 26, 2009 | 2006 Jeep Commander

2 Answers

Car overheating when in idle. fluid level and


Your problem may be that your fan clutch has gone out. When the car is moving, it's cool, but when stopped it's idling, the engine starts 2 get hot which causes the temp to go up. The fan clutch spends the fan, which cools the engine while stopped. I had the same problem. Once you get your new one, you would probably want to get a new thermostat as well, but ask the mechanic first.

Jul 18, 2009 | 1999 Jeep Grand Cherokee

1 Answer

1998 Jeep grand cherokee (Laraedo) A/C


You need to get the cooling system flushed and the thermostat replaced. The fan switch he referred to is the cooling system fan switch. When you A/C is on the computer turn on the fan constantly to help keep the engine cool under the extra load.

Aug 06, 2008 | 1998 Jeep Cherokee

6 Answers

2002 jeep cherokee laredo


the only problem that vehicle has is with cooling fans is relay/module or electrical harness to module that burns up located behind and under right front headlamp assy must remove headlamp to access relay/module that is what powers up fan motor module assy.

Jul 24, 2008 | 2002 Jeep Grand Cherokee

Not finding what you are looking for?
2002 Jeep Grand Cherokee Logo

123 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

yadayada
yadayada

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

Loading...