How do you replace a cooling fan on a Jeep Grand Cherokee?
Pull the cover from the fuse box on the end of the panel. Using the fuse diagram on the inside of the cover, locate the fuse for the cooling fan and remove it with needle-nose pliers. If the metal link inside the fuse is broken, replace the fuse.
How does the cooling system work on a Jeep Cherokee?
When coolant temperature is below 190*F (88*C) the switch is open preventing the relay from being grounded and the cooling fan from being energized. When the air-conditioning is used the engine ECU grounds the A/C relay coil allowing current to flow through it.
What to do if cooling fan does not work?
If fan motor does NOT operate, check continuity between terminal 4 of the relay connector (Fig. 43) and body ground connections on the fender panel back from the relay connector (Fig. 42). If continuity exists replace the fan motor.
How does the cooling fan work on a Jeep Grand Cherokee?
The cooling fan in a Jeep Grand Cherokee keeps engine temperatures at the correct level by kicking on during times when the engine reaches higher-than-average temperatures. Without it, the engine can reach dangerous temperatures and damage engine components.
What are the symptoms of a bad cooling fan relay?
1. Engine running hot One of the first symptoms commonly associated with a bad or failing cooling fan relay is an engine that runs hot or overheats. If you notice that your engine is running at higher temperatures than normal, that may be a sign that the relay is not functioning properly.
Why are the cooling fans not working on my car?
1. Engine running hot 2. Cooling fans do not function 3. Cooling fans stay on at all times Average rating from 129,472 customers who received a Vehicle Engine Cooling Inspection. Most modern vehicles use electric cooling fans to help pull air through the radiator so that it can keep the engine cool.
How to replace a motor on a radiator?
How to Replace a Radiator Fan Motor 1 Locate and disconnect the electrical connector for the cooling fan. 2 Next, remove the lower mounting bolts that attach the fan to the radiator. (Note: Some vehicles have alignment dowels which need not be removed.) 3 Remove any weather stripping that will help access the cooling fan.
How do you remove radiator from Jeep Cherokee?
Use pliers or a screwdriver to remove the large radiator hoses from either side of the radiator at the top and the bottom. If you have an automatic transmission, there will be 2 transmission lines coming into the radiator, which need to be removed from the driver side of the radiator.
What to do if your radiator cooling fan fails to turn on?
If the fan motor fails to activate electrically check the cooling fan fuse and relay and replace as needed. Check the main fan blade mounting nut for tightness. Electrical connectors must free from dirt and debris to ensure proper current flow. Allow the engine to warm up to operating temperature until the cooling fan turns on.
Pull the cover from the fuse box on the end of the panel. Using the fuse diagram on the inside of the cover, locate the fuse for the cooling fan and remove it with needle-nose pliers. If the metal link inside the fuse is broken, replace the fuse.
What to do if your Jeep Grand Cherokee radiator is not working?
The first thing that you would want to do is locate the fuse for your Grand Cherokee’s radiator fan and make sure that it hasn’t blown. If it is blown, replacing the fuse will only solve the problem for a very limited period of time. Unless the wiring issue is fixed, the fuse will blow again. The wiring harness itself can go bad.
Where is the temperature sensor on a Jeep Grand Cherokee?
To test the solenoid unplug the temperature sensor located between the A/C compressor and the alternator just in front of the intake manifold. If the solenoid is working properly the fan will go into Hi-speed. If there is no change in RPM of fan the solenoid or the wiring from ECM to solenoid is at fault.
How can I tell if my Chevy Aveo radiator fan is bad?
You can test the voltage going from the fan relay to the fan itself. If it is getting 12+ volts, the fan should be coming on. But if it’s not, which means the fan has gone bad. This video from Ratchets and Wrenches is a phenomenal resource on how to properly diagnose a wiring problem.
The first thing that you would want to do is locate the fuse for your Grand Cherokee’s radiator fan and make sure that it hasn’t blown. If it is blown, replacing the fuse will only solve the problem for a very limited period of time. Unless the wiring issue is fixed, the fuse will blow again. The wiring harness itself can go bad.
When does the radiator fan turn on in a jeep?
The radiator fan only turns on once the temperature reaches a certain temperature I believe its about half. But on highway speeds it should run very cool. Your electric fan WILL turn on with your A/C switched on, I was 100% certain it did BEFORE I went out to test it simply so I could say I tested it.
What to do if your radiator fan is not working?
No the AC will turn the radiator fan on to pull air across the condensor. Your going to need to check for power at the fan, the fan can still be failed and spin just fine by hand, considering you dont have high or low I would lean towards a fan or fan connector concern.
Where are the fuses on a 2004 Jeep Grand Cherokee?
2004 Jeep Grand Cherokee Fuse Diagrams for Junction Box in cabin and Power Distribution Center under hood 10. Radiator fan relay 40A Alldatadiy.com and Eautorepair.net are professional-grade shop manuals—period. They include wiring diagrams and technical service bulletins.
What to do if you blow fuse on Jeep Commander?
Replace any blown fuses with another with the same amperage (same color) and check the component’s operation. Before changing a fuse, check the ignition key has been removed and that all the other electric devices have been turned off/disabled.
Where is the fuse for the radiator fan located?
Jeep Cherokee: where is the fuse for the radiator fan located… Jeep Cherokee: where is the fuse for the radiator fan located… 2004, 4.0L , radiator fan not operating, + blower motor is now out. Hot wired fan, it works. Purchased a fan control relay, removed rh headlight, cut a … read more My 2006 Jeep Grand Cheroke is getting hot.
Where is the fuse box on a 1999 Jeep Grand Cherokee?
Fuse box diagram Jeep Grand Cherokee 1999-2004 For the Jeep Grand Cherokee second generation 1999, 2000, 2001, 2002, 2003, 2004 model year. Fuse box located. The fuse panel is on the lower instrument panel just to the left of the steering column. A label is stamped on the fuse panel cover to identify each fuse for ease of replacement.
What kind of fuses does a Grand Cherokee have?
This power center houses plug-in “Cartridge” fuses which replace in-line fusible links. The power center also contains “Mini” fuses and plug-in full and mini ISO relays.
Why is my Jeep radiator not turning on?
The fan will turn on after the temperature reaches about half. Usually comes on when the car is standing still due to the small amount of air circulating through the radiator. Too many mods to list… No the AC will turn the radiator fan on to pull air across the condensor.
No the AC will turn the radiator fan on to pull air across the condensor. Your going to need to check for power at the fan, the fan can still be failed and spin just fine by hand, considering you dont have high or low I would lean towards a fan or fan connector concern.
The radiator fan only turns on once the temperature reaches a certain temperature I believe its about half. But on highway speeds it should run very cool. Your electric fan WILL turn on with your A/C switched on, I was 100% certain it did BEFORE I went out to test it simply so I could say I tested it.
How does the cooling system on a Jeep Cherokee work?
Your Cherokee’s cooling system works by cycling the engine coolant from the engine through the radiator. The water pump pushes the water through the entire system. The thermostat opens up once the engine reaches operating temperature and allows coolant in. If any part of this system fails, your Cherokee will eventually overheat.
What to do if your Jeep Cherokee overheats?
The first thing that you need to do is check your Cherokee’s overflow container. If it is full, you can rule out low coolant or a coolant leak, and skip the next section. Low coolant is the most common reason that your Cherokee will overheat. Low coolant is a symptom of a cooling system leak of some kind. It doesn’t just randomly disappear.
Is there coolant coming out of my Jeep?
I bought a 2000 Jeep Cherokee Sport with 45k mile (yes, that’s right) three days ago. Had them change the timing belt at the dealer before I took it. Have driven it 200 miles. Pulled in the driveway just now and fluid (I think it is coolant) pouring out from under the front.
How can I tell if my Jeep Grand Cherokee is overheating?
Coolant temp sensors don’t measure air temp. If there was no coolant in your engine the gauge will read cool when acualy the engine will be turning itself in to a molten pile of steel. Sounds to me like your head gasket blew out, or wore you cracked a head. There is a easy way to tell.
I bought a 2000 Jeep Cherokee Sport with 45k mile (yes, that’s right) three days ago. Had them change the timing belt at the dealer before I took it. Have driven it 200 miles. Pulled in the driveway just now and fluid (I think it is coolant) pouring out from under the front.
Fuse box diagram Jeep Grand Cherokee 1999-2004 For the Jeep Grand Cherokee second generation 1999, 2000, 2001, 2002, 2003, 2004 model year. Fuse box located. The fuse panel is on the lower instrument panel just to the left of the steering column. A label is stamped on the fuse panel cover to identify each fuse for ease of replacement.
This power center houses plug-in “Cartridge” fuses which replace in-line fusible links. The power center also contains “Mini” fuses and plug-in full and mini ISO relays.
You can test the voltage going from the fan relay to the fan itself. If it is getting 12+ volts, the fan should be coming on. But if it’s not, which means the fan has gone bad. This video from Ratchets and Wrenches is a phenomenal resource on how to properly diagnose a wiring problem.