Why is the radiator fan not working on my Dodge Caravan?

Without the coolant hitting the sensor, the temp reading will be significantly lower than the actual engine temp. Your Caravan’s radiator fan will not kick on. If you do have low coolant, don’t fill it up until the engine has cooled off.

Why is my radiator fan not turning on?

The computer sends power to the relay to activate it and turn the fan on. Once activated, however, if the relay sticks in the closed position then the fan will run until the battery is totally discharged.

Why does my car overheat when I Turn on the fan?

The cooling fan, which is behind the radiator grille, removes heat from the engine’s coolant. This fan is electrically controlled and relies on the signal from the onboard computer. If the fan receives a false signal, the fan might not turn on, causing the engine to overheat.

Where is the radiator fan relay on a Dodge Grand?

If the Radiator fan control module has failed you will need to replace it with a new one there is no way to repair it. The radiator fan relay is located below the left front headlamp module. The headlamp module must be removed to access the relay. Open hood, disconnect and isolate the battery negative cable.

What to do if your radiator cooling fan Wont Stop Running?

Remove the lid. Look on the inside of the lid and for the mapping of the fuses and relays with their location. Pull the cooling fan relay out of the box. Replace the cooling fan relay with a new one. A stuck closed relay is the only thing that can operate the cooling fan continuously with the key off.

The radiator fan relay is located below the left front headlamp module. The headlamp module must be removed to access the relay. Open hood, disconnect and isolate the battery negative cable. Remove the left side headlamp bulb from the headlamp housing. Refer to Lighting and Horns.

Why is my computer cooling fan not working?

A stuck closed relay is the only thing that can operate the cooling fan continuously with the key off. The computer looses power with the key off and the same applies to the coolant temperature sensor. The relay, however, has direct power to one side, the same as a light switch.

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 does the cooling fan relay work on a car?

The cooling fan relay is the relay that controls the engine’s cooling fans. When the correct parameters are met, a temperature switch or the computer will activate the relay, which will allow power to the fans. The relay will usually be activated once it is detected that the vehicle’s temperature…

Why does my car have a radiator fan?

You probably already know the purpose of the radiator and the cooling system in your car. When you are driving fast, the wind is passing through the radiator to cool the coolant down without issues, but when you are driving slow, there is no wind pushed through the radiator. This is why we use a radiator fan.

How can I tell if my radiator fan is working?

When a radiator fan works it usually makes a whirring sound that is easily noticeable. However, the radiator fan does not always start spinning on ignition. The ECU signals the radiator fan to work at the precise time. So, do not worry if the fan doesn’t immediately start working. Visually check the fan if you don’t hear its noise. 1. Broken Fuse

What should the temperature of a Dodge Grand Caravan radiator be?

Connect a high input impedance (digital) volt-ohmmeter to terminals A and B (Fig. 96). The ohmmeter should read as follows: Normal operating temperature around 200°F ohmmeter should read approximately 700 to 1,000 ohms .

Why is my radiator cooling fan not turning on?

The issue presented itself with a check engine light and the radiator cooling fan not turning on. The trouble code indicated the cooling fan relay was faulty.

How to remove a radiator fan from a Dodge Grand?

Remove the left side headlamp bulb from the headlamp housing. Refer to Lighting and Horns. Remove the left headlamp module. Remove the cover over the relay. Disconnect the relay connector. Carefully drill out the two retaining rivets. Remove relay from vehicle. CAUTION: The relay mounting location is designed to dissipate heat.

What should I do if my radiator fan is not working?

A blown fuse is no big deal, and changing one does not cost a lot of money. If your car’s radiator fan is non-functional, check your car’s user manual and locate the fuse for the radiator fan controller or the fan. The fan itself often uses a big fuse of around 50A, while there might also be a separate small fuse to the fan control module.

Why do you need a radiator fan in a car?

To stop the engine from overheating, we take the help of coolants that flow through a radiator into the engine. The radiator’s job is to keep the coolant cool so that when it returns back into the engine, it is able to absorb more heat. A radiator fan is thus used to keep the temperature of the coolant in check. Thus, it has an important job.

Why does the radiator fan not come on when the AC is on?

In order for the AC Condensor to do its job it must stay as cool as it can. As for the engine coolant temp sensor, if the coolant is not hot enough to make the fan come on, then there is no need for the fan yet and there is no problem.

Why does my Jetta not have a cooling fan?

Simply the engine is not hot enough to turn on the cooling fan, its not hot enough outside, you are driving getting plenty of air flow through the grille to keep things cool without the assistance of the fan. Its possible that you have no problem at all. Was this answer helpful? I got a 2002 Jetta the cooling fans don’t turn on .

What to do if your radiator fan does not turn on?

Also check for continuity between PCM connector terminal 43 and the sensor harness connector. If the resistance is greater than 1 ohm , repair the wire harness as necessary. If the Radiator fan control module has failed you will need to replace it with a new one there is no way to repair it.

Where is the 40A fuse on a Dodge Grand Caravan?

1 check the 40A fuse in the fuse box under the hood on the drivers side. The inside of the lid to the fuse box will tell you which one it is. More difficult but a little more likely. Check the coolant temperature sensor at the top of the engine.

Is the cooling fan relay on a Chrysler working?

The cooling fans on Chrysler cars are not particularly well-made, but that doesn’t mean you can assume that they are broken the second the cooling system stops working. Watch this video to figure out how to diagnose problems with the cooling fan relay on a Chrysler.

What does it mean when your radiator fan is not working?

This is what we call a blown fuse. A blown fuse is no big deal, and changing one does not cost a lot of money. If your car’s radiator fan is non-functional, check your car’s user manual and locate the fuse for the radiator fan controller or the fan.

What’s the problem with my 2008 Dodge Grand Caravan?

No one has added a helpful site for this 2008 Grand Caravan problem yet. Be the first! Read reviews of repair shops in your area. Enter your zip code: Search CarComplaints.com for these popular complaint phrases…

When does the Dodge Grand Caravan blower stop working?

The heater/cooler blower only stops intermittently when there are extreme weather conditions…i.e. When you really need it. The only way to get it working again is to pull over, shut the engine off and restart the car. This is really annoying and dangerous when the windows fog.

What causes a tipm to go bad in a Dodge Caravan?

If you have a Jeep Grand Cherokee, Dodge Durango, or Dodge Caravan that is not receiving fuel and will not start or drains the battery, It is likely a TIPM issue. What can you do about a bad TIPM? Well, What is a TIPM and what does a TIPM do? TIPM is the acronym for Totally Integrated Power Module.

What was the problem with my 2008 Dodge Grand Caravan?

Door locks were going off and on as well the whole time. Horn, lights, doors, and wipers came on intermittently. Sometimes all at once, sometimes individually. Front blower motor stopped working and started working intermittently. I bought this 2008 Dodge Grand Caravan SXT 6 months ago with 110k on it.

How many batteries does a Dodge Grand Caravan have?

I bought this 2008 Dodge Grand Caravan SXT 6 months ago with 110k on it. Since buying it, i have replaced the radio, the fuel pump, head gasket, radiator, and ignition coil. It now has 112k and have gone through 3 batteries due to a parasitic drain.

What to do if your Dodge Grand Caravan radio is not working?

If you are having any of these problems you will need to replace the radio or repair it. Turn off the ignition and set the parking brakes. Open the hood and disconnect the negative battery terminal. Remove the frame from around the radio. Remove four Philips screws. Pull out the radio. Disconnect the main wire harness. Disconnect the antenna wire.

Why does my front blower not work in my Dodge Grand Caravan?

I have been dealing with this issue for over a year. 2008 Dodge Grand Caravan. Front blowers don’t work when back ones do. AC is still cooling. Turn van off, restart and everything works again. Maybe for minutes, maybe for days or weeks. Four different mechanics and dealers have looked at the problem.

Why is the radiator not working on my Dodge Caravan?

There are many reasons why your Dodge Caravan’s radiator fan is not working. Of all the ones listed above, start with the coolant level, then check the fuse. After that, the order isn’t so important. But, you don’t want to miss the easy fixes before you start testing wiring.

Where is the radiator fan relay on a Dodge Grand Caravan?

If the resistance is greater than 1 ohm , repair the wire harness as necessary. If the Radiator fan control module has failed you will need to replace it with a new one there is no way to repair it. The radiator fan relay is located below the left front headlamp module. The headlamp module must be removed to access the relay.

Is there an air conditioner on a Dodge Caravan?

The Dodge Caravan is a minivan manufactured and sold by the Dodge division of the Chrysler Group. The minivan was first manufactured in 1983 and remains in production as of 2011. The vehicle has an air conditioning system (AC) to cool passengers during warm weather and hot drives.

Where is the coolant sensor on a Dodge Grand?

The inside of the lid to the fuse box will tell you which one it is. With the key OFF, disconnect wire harness connector from coolant temperature sensor usually right next to where the large radiator hose exits the top of the engine where the thermostat housing is:

Why is my engine cooling fan not working?

Your engine cooling fan, only runs when needed to help cool the engine. So, a engine cooling fan, relay or control circuit failure is bad news. Because, it can allow the engine to overheat. The engine coolant sensor or a separate engine temperature switch, is used to monitor engine temperature.

What kind of fan controller does a Dodge have?

Some Dodge vehicles have a solid state radiator fan controller that varies the fan speeds by pulsing the ground to the radiator fan motor. But other Chrysler and Dodge vehicles use a more traditional radiator fan relay. This is the Dodge Radiator Fan Wiring Diagram for the traditional version.

How does the radiator fan work on a Dodge?

This is the Dodge Radiator Fan Wiring Diagram for the traditional version. The powertrain control module (PCM) sends a reference voltage to the engine coolant temperature sensor and monitors the return voltage. When it determines the engine requires cooling, it grounds the control coil in the radiator fan relay.

What should room temp be on Dodge Grand?

Room temperature around 70°F ohmmeter should read approximately 7,000 to 13,000 ohms . Test the resistance of the wire harness between the PCM connector terminal 26 and the sensor harness connector. Also check for continuity between PCM connector terminal 43 and the sensor harness connector.

How can I tell if my coolant temperature sensor is bad?

To diagnose the coolant temperature sensor, you need a repair manual for your car model to find what measurement values you should expect from the coolant temperature sensor. Connect an OBD2 Scanner and look for related trouble codes. Check the live data to see the temperature from the sensor.

How is the coolant temperature sensor on a car controlled?

A lot of engine coolant temperature sensors have two wires and the sensor is controlled by Ohm. Get a wiring diagram and find out what ohms you should have at a specific temperature to check the function. You can use a Digital multimeter. to check the Ohm between the pins.

What’s the name of the coolant temperature sensor?

Coolant temperature sensors are also known as engine coolant temperature sensors or ECT sensors. The principle working of this sensor involves the use of an electrical resistance which measures the temperature of the coolant.

What does the coolant temperature sensor do on an engine?

The engine coolant temperature sensor’s job is to measure the coolant temperature for the engine control module. With this information, the engine control module adjusts the air-fuel mixture depending on the temperature. This article will discuss the most common symptoms of a bad coolant temperature sensor, location, replacement cost.

Can a bad coolant sensor cause a car to not start?

Some cars use the engine coolant temperature sensor to control the electric cooling fans. You have two separate temperature sensors for the fans, dashboard gauge, and engine management in most cars. However, if your car has a single sensor, a bad engine coolant temperature sensor may result in your fans won’t start at all.

What to do if radiator does not turn on Dodge Grand?

Ensure the relay is properly attached to prevent relay “ thermal ” shutdown and relay damage, resulting in possible engine overheating. Release hood latch and open hood. From inside engine compartment, remove nuts holding headlamp module to radiator closure panel. Remove screw holding top of module to closure panel.

What should the radiator temperature be in a Dodge Grand?

Normal operating temperature around 200°F ohmmeter should read approximately 700 to 1,000 ohms . Room temperature around 70°F ohmmeter should read approximately 7,000 to 13,000 ohms . Test the resistance of the wire harness between the PCM connector terminal 26 and the sensor harness connector.

How to diagnose a Jeep JK radiator fan issue?

The Relay in the TIPM (K11) labeled “Radiator Fan Low” The dual relays over by the brake master cylinder labeled “Fan Relays” on the internet (Mopar Part 56055666AB) The lack of a P069X style code being thrown led me to believe this was a unique problem with only the “high” speed part of running the fan.

Where is the relay on a radiator fan?

The fan relay is often located in the engine bay’s fuse box, but the best way is to check your repair manual to find where it is located. Testing a 4 pin relay is often very straightforward. Remove the relay and give 12 volts to pin 30 and 85. Ground pin 86 and check if there is voltage coming out from pin 87.

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 is my Dodge Grand Caravan overheating?

The contact owns a 2008 Dodge Grand Caravan. The contact stated that while driving, the vehicle was leaking water from the cooling system and overheating. The vehicle was taken to an authorized dealer, who stated that hoses for the cooling system needed to be replaced. There were no recalls addressing the failure.

Are there any problems with the Dodge Grand Caravan?

Dodge Grand Caravan owners have reported 37 problems related to engine cooling system (under the engine and engine cooling category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Dodge Grand Caravan based on all problems reported for the Grand Caravan.

What causes a Dodge Grand Caravan to overheat?

Find the most common driver-reported problems that are to blame when a Dodge Grand Caravan overheats. Loose retaining nut on engine cooling module fa… A loosening (or loss) of the nut retaining the engine cooling module fan can cause a vibration. if not addressed…

When does the radiator turn on when the AC is on?

When the AC is switched on, the compressor clicks on. HOWEVER, the radiator fan does not turn on with the compressor. The rad fan only comes on when the engine gets hot, and it works well to keep the engine temps down. HOWEVER, it is only one speed (a low speed).

What are the problems with the Dodge Grand Caravan?

Learn more about car Reliability. The Reliability score is based on our latest subscriber survey of 2014 Dodge Grand Caravan owners. The owner comments describe problems respondents experienced with this vehicle. Paint (fading, chalking, cracking, or peeling), loose interior and exterior trim or moldings, rust.

Why is the pollen filter on my Dodge Caravan not working?

The pollen filter, also known as the cabin filter or microfilter, is a central component of the ventilation system in your Dodge Grand Caravan. A dirty filter causes the overall ventilation of the interior to deteriorate resulting in reduced cooling, heating and air flow.

What happens if your radiator fan is not working?

A radiator fan is important as it helps to circulate air within the engine of your vehicle and keep the engine temperature down. If the fan isn’t working, it could lead to overheating and cause damage to the engine which could prove very costly.

Why is it important to have a radiator fan?

A radiator fan is important as it helps to circulate air within the engine of your vehicle and keep the engine temperature down.

What to do if your Radiator is not getting hot?

If you have a section of your heating not working, then your system is going to have to work harder in order to heat your home satisfactorily. You may also find that because your home is not getting as hot as you would like it to, you resort to switching up your thermostat to try and compensate.

Why are my coolant fans not turning on?

If both fans operate then it is time to take a look at the pressure transducer. Don’t let this strange name fool you, it is simply a sensor that relays the amount of pressure in the system to the PCM and the PCM decides when to turn on the fans and or compressor clutch.

What causes a Dodge Caravan engine to overheat?

If the temperature gauge does not quickly return to the normal range, turn the engine off and have your Caravan towed and serviced. The No.1 cause of a hot engine is low coolant level. Check your coolant when the engine is cool, and top it off as needed.

Why does my caravan heater keep getting hot?

This will allow your heater to draw off some of the waste heat in the engine. If the temperature gauge does not quickly return to the normal range, turn the engine off and have your Caravan towed and serviced. The No.1 cause of a hot engine is low coolant level. Check your coolant when the engine is cool, and top it off as needed.

What causes a Dodge Caravan to over heat?

How big is the cooling system on a Dodge Caravan?

The total cooling system capacity is 13.4 quarts for models without the auxiliary heater, and 16.3 quarts for models equipped with the auxiliary heater. TJ Hinton trained as an auto mechanic at Mississippi Gulf Coast Community College and then later graduated from MMI as a certified motorcycle mechanic .

What to do if your Dodge Grand Caravan radiator does not turn on?

Test the resistance of the wire harness between the PCM connector terminal 26 and the sensor harness connector. Also check for continuity between PCM connector terminal 43 and the sensor harness connector. If the resistance is greater than 1 ohm , repair the wire harness as necessary.

What causes a car cooling fan to stop working?

There’s many reasons why a cooling fan could stop working, such as a bad sensor, relay, fuse and more. DIY car repair with Scotty Kilmer, an auto mechanic for the last 42 years. 1. Bluetooth Scan Tool: http://amzn.to/2nfvmaD 2. Cheap Scan Tool: https://amzn.to/2D8Tvae 3. Professional Socket Set: http://amzn.to/2Bzmccg 4.

The issue presented itself with a check engine light and the radiator cooling fan not turning on. The trouble code indicated the cooling fan relay was faulty.

What to do if your car fan won’t turn on?

It either will go to ground and turn on the fans or supply power to the coil and turn them on. If so then try placing a ground connection on the Lt grn/dk blu wire that goes to the ECU and verify that the fans turn on. If they work ok then the ECU isn’t turning the fans on for some reason.

What are the symptoms of a bad cooling fan?

Common signs include the engine overheating, cooling fan only working at certain speeds, and the fan never turning off.

Why is my radiator not turning on on my Dodge Grand Caravan?

I have a 2000 Dodge Grand Caravan that has 195,000 miles. My radiator fan won’t turn on and I’m stumped! The issue presented itself with a check engine light and the radiator cooling fan not turning on.

How to turn on the radiator on a Dodge Grand?

Separate headlamp module from vehicle. Place headlamp module in position on vehicle. Connect wire connectors into back of headlamp module. Place headlamp module in position on radiator closure panel. Install nuts to hold headlamp module to radiator closure panel. Install screw to hold top of module to closure panel.

Why do you need a cooling fan in a car?

Virtually all modern vehicles built today use electric cooling fans to help pull air through the radiator to keep the engine cool. Once the coolant temperature sensor detects that the engine temperature has exceeded acceptable levels, the cooling fans will be activated to keep the engine cool.

Can a radiator fan and condenser fan share a relay?

There are, however, some models that use a dedicated second unit to the condenser. In such a scenario, the condenser fan and radiator fan may or may not share the same relay. If the cooling fan does not engage, you can check whether the relay is to blame by swapping it out for a different relay.

Is there a way to test a radiator fan?

You can test the electrical radiator fans by taking a wire from the car battery, unplug the radiator fan connector, and put 12v+ and ground into the connector. This is the fastest and easiest way to test your radiator fans. Because the radiator fan is often drawing so much power, there is often a relay that is powering the coolant fan.

Why is the radiator not working on my Dodge Stratus?

Just because the radiator fan is not on does not mean that it is not working. They are designed to only run when needed. If your Stratus is running hot, and the fan is not running we’ve laid out the most common causes of this issue below. There are a few simple reasons that the fan would not be cycling on.

What should I do if my radiator fan Won’t Spin?

If they do then you have a bad A/C pressure switch or wiring from it to the PCM. If they don’t spin disconnect the fan relay connector (mounted behind the grill in front of the radiator) and jumper pins 1 and 2 together (orange/red tracer to dark blue/dark green tracer wires). They should spin immediately.

How much coolant does a Dodge Caravan need?

Avoid using propylene-glycol coolant, and never mix coolant types or colors. The total cooling system capacity is 13.4 quarts for models without the auxiliary heater, and 16.3 quarts for models equipped with the auxiliary heater.

Why is my car running hot but not overheating?

If you find that you’ve got a car running hot but not overheating there might be a few reasons: 1 Clogged or damaged radiator 2 Low coolant level 3 Damaged water pump or thermostat 4 Overworked engine More

Why is my Dodge Grand Caravan not running?

So it should run all the time if the coolant temp sensor is disconnected, or either of the relays are pulled from the IPM. The relay on the frame is the most likely culprit here if it is not running at all. Do those tests, then take that relay off if you can’t get it to run at all. It costs about $60-70 at the Chrysler dealer.

How does the fan work on a Honda Accord?

This then triggers a relay mounted down low on the driver’s side near the radiator which kicks the fan on or off. The fan is set to work in a “stay alive” mode if the coolant temperature sensor input is invalid, or if it loses input from either of the two relays in the IPM.

What happens if your coolant level is low?

If your coolant level is low, there is a chance that you will get air in the system, and the coolant temperature sensor will not read the coolant temperature correctly. If the coolant level is low, you need to refill the coolant to optimum levels. Failing to do so could risk your engine becoming overheated and seized.

Why are my coolant fans not running when AC is turned on?

Coolant fans not running when ac is turned on. AC compressor clutch engage then it will disengage. System has freon in it. It was working find but now nothin7. My car has 234565 miles. My car has an automatic transmission.

Why does the engine fan not come on?

The engine fan needs to come on to remove heat from the A/C condensor, but it doesn’t come on. With good A/C condensor cooling on the highway, the A/C functions ok. In city driving with little to no air flow over the A/C condensor, it’s miserable. What to check? Wiring, a sensor, a module, Toyota, ?

Why is the radiator fan not working on my Dodge Caravan?