Question about 2002 Chrysler Town & Country

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Radiator fans turn on intermittantly without engine on

Need help locating coolant temperature sensor

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The rad fan on this modle is ment to run when ever needed, even with the engine off. call or stop into your dealer to confirm and have them point out the coolant temp sensor, they are there for you and are willing to help. ask to talk to a tech.

Posted on Nov 18, 2008

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3 Answers

Why does my fan always run intermittently? During traffic jams my fan will run about 25 times intermittently, and I check my temperature it is still normal?


sounds like problem with the temperature sensor or relay that controls the fan(if electric) check the sensor and relay one may need to be replaced.

Mar 24, 2015 | Cars & Trucks

1 Answer

Radiator fan will not turn off on a toyota yaris


EOBD II Error Code: P0117
Fault Location:
Engine Coolant Temperature (ECT) Sensor - Low Input
Possible Cause:
Malfunction Indicator Lamp (MIL) Triggered on first occurrence.
Coolant thermostat.
Wiring short to earth.
Engine coolant temperature (ECT) sensor.

Nov 25, 2012 | 2004 Toyota Yaris 1.0

1 Answer

Overheating


OVERHEATING CAN BE CAUSE BY MANY THINGS LIKE FAULTY THERMOSTAT AND FAULTY RADIATOR PRESSURE CAP,TOO MUCH WATER IN COOLANT SYSTEM NEED 50 / 50 WATER AND ANTIFREEZE.LOOK FOR WATER PUMP WEEP HOLE LEAK, IF COOLANT LEAKING OUT WEEP HOLE WATER PUMP BAD NEED REPLACING.CHECK FOR LOW COOLANT LEVEL, YOUR RADIATOR OVERFLOW JUG SHOULD HAVE COOLANT AT THE FULL COLD MARK IF NOT KEEP ADDING COOLANT INTO COOLANT OVERFLOW JUG UNTIL COOLANT STOP DROPPING AND FULL COLD MARK, IF OVERFLOW COOLANT JUG WAS EMPTY RADIATOR IS LOW ON COOLANT.WHICH CAUSE AIR IN COOLANT SYSTEM KEEPING THE ENGINE COOLANT TEMPERATURE SENSOR FROM BEING SUBMERGE IN HOT COOLANT WHICH TURN ON THE COOLANT FANS.WHEN ENGINE COOLANT TEMPERATURE GET CERTAIN SET TEMPERATURE LIKE 190 DEGREES THE PCM AND COOLANT SENSOR WILL TURN ON COOLANT FANS, IF VECHICLE OVERHEATING COOLANT FANS NOT WORKING EITHER YOU HAVE FAULTY ENGINE COOLANT TEMPERATURE SENSOR CHECK COOLANT FANS FUSE AND RELAYS. YOU CAN CODE SCAN CAR TO SEE IF YOU HAVE FAULTY PCM, FAULTY ENGINE COOLANT TEMPERATURE SENSOR OR FAULTY COOLANT FAN RELAY.IF COOLANT FAN AND ENGINE COOLANT TEMPERATURE SENSOR OKAY,YOU HAVE CORRECT COOLANT LEVEL IN COOLANT SYSTEM, THERMOSTAT AND RADIATOR PRESSURE CAP BEEN REPLACED, YOU COULD HAVE BLOWN HEAD GASKET CHECK ENGINE OIL LOOKS LIKE MILK SHAKE HEAD GASKET BLOWED ALSO WHEN HEAD GASKET BLOWED YOU CAN DRIVE CAR SHORT DISTANCE START OVERHEATING AND YOU LOOSE ENGINE POWER SUSPECT BLOWED HEAD GASKET.

Aug 04, 2011 | 1999 Oldsmobile Alero

1 Answer

Location of fan relay on mt 99 dodge grand caravan 3.8 l motor ?


Thank you for the inquiry.
RADIATOR FAN CONTROL
Fan control is accomplished two ways. A pressure transducer on the compressor discharge line sends a signal to the Powertrain Control Module (PCM) which will activate the fan. In addition to this control, the fan is turned on by the temperature of the coolant which is sensed by the coolant temperature sensor which sends the message to the PCM. The fan will not run during cranking until the engine starts no matter what the coolant temperature is.

CAUTION: The solid state fan relay is attached to the left frame rail near the lower radiator support. The relay bracket, and fastener are used to dissipate heat from the relay. Ensure the relay is properly attached to prevent the following:

Intermittent engine overheating.
Relay "thermal" shutdown, or relay damage.

Hope helps; keep us updated and remember to rate this answer.
Kind regards,
TF

Jun 04, 2011 | 1999 Dodge Caravan

2 Answers

PO480 code on my DTC Cooling Fan 1 Control


Hi.

DTC P0480 is normally given by radiator fan relay. Replace the fan relay located near to the radiator. There is also a service bulletin about the error being prompted in snow condition. The bulletin advice to re-program the ECU.Here the bulletin.

Jun 03, 2011 | 2006 Chrysler Town & Country

1 Answer

2001 town&country had replaced radiator but now fan stop working van is not over heating and heat is good hanve no other problem just fan s not working olease help me to find out waht could be problem


ANY TIME YOU CHANGE RADIATOR ONCE YOU GET THE NEW RADIATOR IN PLACE.FILL RADIATOR WITH ANTIFREEZE CRANK VECHICLE UNTIL THERMOSTAT OPEN. WHEN YOU TOUCH THE TOP RADIATOR HOSE.IF TOP HOSE HOT THERMOSTAT OPEN.CHECK RADIATOR COOLANT LEVEL IF DROPPED ANY.ADD COOLANT UNTIL LEVEL QUIT DROPPING. WHEN COOLANT LEVEL QUIT DROPPING YOUR COOLANT LEVEL IS CORRECT. NO MORE AIR IN COOLANT SYSTEM OR AROUND COOLANT TEMPERATURE SENSOR COOLANT FAN SHOULD TURN ON ONCE ENGINE GET TO CERTAIN COOLANT TEMPERATURE.SEE IF COOLANT TOO LOW NOT ENOUGH COOLANT REACH COOLANT TEMPERATURE SENSOR. SENSOR CANT TURN ON FANS IF ITS NOT IN HOT COOLANT. WHICH DECREASE ITS RESISTANCE WHICH CLOSE OR GROUND CIRCUIT CAUSING COOLING FANS TURN ON.

Nov 25, 2010 | Chrysler Town and Country Cars & Trucks

1 Answer

How to change the radiator fan?


Electric Engine Fan - Fan Switch

Removal & Installation
2.7L Engine
  1. Disconnect negative battery cable.
  2. Partially drain cooling system.
  3. Disconnect the electrical connector .
  4. Remove engine coolant sensor from coolant outlet tube .
To install:
  1. Apply thread sealant to sensor threads.
  2. Install engine coolant temperature sensor into coolant outlet tube.
  3. Tighten sensor to 20 ft. lbs.(28 Nm) torque.
  4. Connect electrical connector to engine coolant temperature sensor .

3.2L And 3.5L Engines
  1. Disconnect negative battery cable.
  2. Partially drain cooling system.
  3. With the engine cold, disconnect coolant sensor electrical connector.
  4. Remove sensor.
To install:
  1. Install engine coolant temperature sensor.
  2. Tighten sensor to 20 ft. lbs.(28 Nm) torque.
  3. Attach electrical connector to sensor.
  4. Connect negative battery cable.
Removal & Installation
  1. Disconnect negative battery cable.
  2. Partially drain cooling system.
  3. Remove upper radiator hose.
  4. Disconnect cooling fan electrical connector.
  5. Remove cooling fan mounting bolts.
  6. Remove radiator cooling fan assembly from vehicle.

    f9d971c.jpg
    Fig. Removal and installation of the radiator fan-2.7L Engine shown
To install:
  1. Position radiator cooling fan assembly in vehicle.
  2. Install cooling fan mounting bolts. Tighten to 50 inch lbs. (6 Nm)
  3. Connect cooling fan electrical connector.
  4. Install upper radiator hose .
  5. Fill cooling system.
  6. Operate engine until it reaches normal operating temperature.
  7. Check cooling system and automatic transmission for correct fluid levels.

Hope helps (remember comment and rated this).

Jul 13, 2010 | 2001 Dodge Intrepid

1 Answer

2007 Pacifica overheated. Outside Temp only 80. Doesnt appear that front fans are working and coolant level in resevior get higher.


Turn on the AC--it should start the radiator fans immediately. If nothing, check the fuse for the fans. The relay for the fans is a solid state device that is controlled directly by engine computer. The computer reads the coolant temperature sensor which tells the computer when to turn on the fans for usual cooling. Try to turn each fan manually (engine cool) and check for bad bearings, or fan blades--both fans should spin freely without any noise. If the fans come on with AC, then replace the temperature sensor which should be located near the attachment area of the upper radiator hose on the engine. It will have a single wire attached, and look like a small brass plug with threads. Watch the engine temperature for a while after the repair as the overheating may have damaged the thermostat element. Hope this helps!

Jul 01, 2010 | 2007 Chrysler Pacifica FWD New Cars

1 Answer

Fans wont come on at all in my chevrolet silverado 2007 it will run hot if we are still but, if we get moving the engine cools down immediately


sounds like you have a bad temperature sensor/fan switch usaully located on the radiator. turns on fan when coolant reaches operating temperature. when moving the ram air going thru radiator is enough to cool the engine without the fan,

Nov 13, 2009 | 2007 Chevrolet Silverado 1500HD

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