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Electric fan not working power is B at both sides of fan motor this is cooling fan mounted on radiator

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4 Suggested Answers

stormbrewin
  • 426 Answers

SOURCE: Radiator cooling fan doesn't come on.

first unplug the cooling fan at its plug and supply 12v to the fan if it doesnt run then replace if it does run follow the power wire to the thermal water switch usualy located at the bottom of the radiator.Use test light/probe to check that you have power into the switch and when engine is hot you should have power both in and out of the switch.if not replace thermal water switch.If that is working you will need to find out why you have no power to the switch.Check that your fuse and relay is working correctly.Sometimes just pulling out the relay and putting back in will make it work due to poor contact.Also try swapping relays with others in the same box near battery to identify if relay is faulty

Posted on Oct 27, 2008

yotaguy
  • 232 Answers

SOURCE: The electric radiator cooling fan will not turn off

As long as the fan eventually shuts off this isn't a problem,the fan will continue to run for a bit after the car is turned off,once it reaches a set temprature it will turn off.

Posted on May 02, 2009

  • 186 Answers

SOURCE: radiator cooling fan 30 amp. fuse keep blowing

The fan may run with jumper wires but if it''s blowing the 30 Amp Maxifuse it's needs a new or used fan motor.It's pulling too many amps.I have almost never seen a fan relay concern.Only other thing you may check is the wiring down near the fan shoud I have seen the 2 wires get loose from the conduit & melt onto exhaust manifold.Hope tHis Helps

Posted on May 12, 2009

  • 6 Answers

SOURCE: 2003 Audi TT Quatro Coupe.

The main reason for the over heating of the audi tt is to do with the water pump. The propeller within the first type of water pumps is made of plastic. This was to prevent corrosion, however was never designed to last longer than 5 years. What you need to do is purchase the new style water pump. These new style water pumps have been designed with a metallic propellor which should resolve the overheating. Let us know how you get on.

Posted on Aug 17, 2009

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1 Answer

The primary radiator fan does not come on.


Check Maxi fuse #3 60 amp in the under hood electrical center #1 .This is power for the #1 cooling fan . Also check the #1 fan control relay in the same under hood electrical center .
These vehicles use 2 360 mm (14.2 in) cooling fans to aid air flow through the radiator. Electric motors drive the cooling fans. These motors are attached to the radiator. Motor size varies with each engine option.
A coolant temperature switch activates the fan motors. This switch regulates voltage to the cooling fan relay. This switch operates the fan whenever the engine coolant temperature exceeds 110°C (230°F). For location and diagnosis, refer to Electrical Diagnosis. A transducer can also activate the circuit, depending on the A/C compressor head pressure going to the condenser.
The engine cooling fan relays provide the high current required for the cooling fan motors using a low current signal coming from the Powertrain Control Module (PCM). This signal is a function of various inputs.
Refer to Electrical Diagnosis for further information and diagnosis of the cooling fan relay.
Electrical Center #1, Underhood (U/H)
RH side of the engine compartment, forward of the strut tower

Jun 08, 2016 | 1996 Pontiac Grand Prix

1 Answer

How do I fix cooling fans that run when car is off


Replace the fan relays. The Radiator Cooling Fan Motor Relay is located: Under hood, driver side, front side of strut tower, mounted in relay panel
Application:
High speed The Radiator Cooling Fan Motor Relay is located: Under hood, driver side, front side of strut tower, mounted in relay panel
Application:
Low speed,here's a new part.
http://www.autozone.com/cooling-heating-and-climate-control/relay-radiator-cooling-fan-motor/duralast-relay-radiator-cooling-fan-motor/plymouth/voyager-2wd/1996/6-cylinders-3-3-0l-mfi/412240_0_0

Sep 22, 2015 | 1996 Plymouth Voyager

1 Answer

About how long will it take to replace the radiator?


About 2.5 hours

Hope this helps, it it does please leave feedback and vote Thank You and Good Luck

  • Tools Required
  • J 38185 Hose Clamp Pliers
Removal Procedure

110563917

Caution: Before servicing any electrical component, the ignition key must be in the OFF or LOCK position and all electrical loads must be OFF, unless instructed otherwise in these procedures. If a tool or equipment could easily come in contact with a live exposed electrical terminal, also disconnect the negative battery cable. Failure to follow these precautions may cause personal injury and/or damage to the vehicle or its components.


  1. Remove the battery.
  2. Remove the air cleaner assembly.
  3. Drain the cooling system.
  4. Remove the right and the left engine mount struts. Refer to the following procedures:
    • Engine Mount Strut Replacement - Right
    • Engine Mount Strut Replacement - Left
    • Engine Mount Strut Replacement - Right
    • Engine Mount Strut Replacement - Left
  1. Use J 38185 to remove the inlet hose clamp from the radiator.
  2. Remove the inlet hose from the radiator.
  3. Remove the transmission oil cooler lines from the retainer clip at the bottom of the cooling fan shroud.
110563918


  1. Remove the bolt that connects the fan shroud to the condenser hold down bracket.
110563919


  1. Remove the cooling fan shroud bolts.
  2. Remove the coolant reservoir hose from the radiator overflow neck.
110563920


  1. Remove the radiator upper support brackets and bolts that connect to the fan shroud.
  2. Disconnect the engine cooling fan motors electrical connector.
  3. Remove the cooling fan motors electrical harness from the fan shroud clips.
  4. Remove the cooling fan shroud.
  5. Remove the bolt from the condenser tube support bracket to the radiator.
  6. Use J 38185to remove the outlet hose clamp from the radiator.
  7. Remove the outlet hose from the radiator.
  8. Disconnect the transaxle oil cooler pipes from the radiator.
  9. Tilt the top of the radiator rearward.
110564721


  1. Remove the condenser hold down bracket (1) from the radiator.
  2. Remove the air deflectors from the top of the radiator.
  3. Lift the condenser from the mounting tabs on the radiator (2). Position the condenser aside.
  4. Remove the radiator.

Jan 02, 2011 | 2004 Chevrolet Impala

1 Answer

Cooling fan burned up


Get a new fan motor and blade from GM or from an aftermarket supplier.

GM parts are usually better than the aftermarket ones, though for fit and functioin.

May also look into checking the relays and harness. If the terminals of the fan show they are getting current, then the motor will have to be replaced if not turning or obviously burnt.

Good luck on this repair.
---

Inspect/Replace

CAUTION
The fan that draws cool air across the radiator can be driven by either a belt or electricity. Rotating fans can be dangerous. Some are controlled by an automatic switch and can start unexpectedly. When working on electric fans, keep in mind that electric cooling fans should be disconnected when working around them.
When replacing a radiator fan motor, always refer to the vehicle's service manual. The following is a general guide for cooling fan replacement.

  • Disconnect the negative battery terminal at the battery. This is necessary on vehicles using electric fans, but some vehicles may require the relocation of the charging system components.
  • Drain the cooling system.
  • Loosen or remove the hose clamps, then remove the upper and lower hoses from the radiator.
  • Disconnect the transmission cooling lines and plug them off, if equipped.
  • Disconnect the electric fan motor connector, if equipped.
  • Remove the fasteners attaching the fan module to the radiator.
  • On some vehicles equipped with air conditioning systems, it may be necessary to discharge the system. This is the case if the radiator and condenser can not be separated in the vehicle.
  • Remove the upper radiator cross member or mounts.
  • Disconnect and plug the air conditioning lines at the condenser, if needed.
  • Remove the radiator and fan module as one unit if possible.
  • Separate the fan module from the radiator.
  • If required, separate the radiator from the condenser.
  • Remove the old fan module.
  • Install the new fan module onto the radiator.
  • Reattach the fasteners attaching the fan module to the radiator.
  • If equipped, connect the electric fan motor connector.
  • Reinstall the radiator.
  • Refill the cooling system.

Oct 29, 2010 | 1997 Chevrolet Cavalier

1 Answer

2005 Jeep Liberty overheats at idle but while in movement temp returns to normal.


Check to see if the fan on the radiator is working at idle.

Here's information on how to change the fan if needed:

Engine Cooling Fan Removal & Installation 2.4L Engine To Remove:
  1. Remove the coolant bottle and set aside.
  2. Remove the power steering reservoir and set aside.
  3. Disconnect the cooling fan connector.
  4. Remove the cooling fan mounting screws and the cooling fan.
To Install:
  1. Install the cooling fan and the mounting screws. Tighten to 50 in-lb (5.5 Nm).
  2. Connect the cooling fan connector.
  3. Install the power steering reservoir.
  4. Install the coolant bottle.
3.7L Engine To Remove:
NOTE: If the fan blade is bent, warped, cracked or damaged in any way, it must be replaced ONLY with a replacement fan blade. DO NOT attempt to repair a damaged fan blade.
NOTE: For 3.7L Heavy Duty/Max Cool/Trailer Tow cooling package, the viscous fan cannot be removed separate from the shroud. Both fan and shroud must be removed together.
  1. Disconnect battery negative cable.
  2. Using special tool #6958 spanner wrench and #8346 adapters, remove the viscous fan from the water pump.
  3. Gently lay fan into shroud.
  4. Disconnect the electrical connector for the electric fan, then disconnect connector from shroud.
  5. Remove the two fan shroud mounting bolts connecting the fan shroud to the radiator.
  6. Remove the shroud and fan from the vehicle.
To Install:
  1. Install fan shroud assembly into the vehicle. Tighten fan shroud to radiator bolts to 50 in-lb (5.5 Nm).
  2. Install shroud mounting bolts tighten bolts to 89 in-lb (10 Nm).
  3. Connect fan motor wire connector to harness connector, and attach connector to shroud.
  4. Connect negative battery cable.
  5. Start engine and check fan operation.

Aug 31, 2010 | 2005 Jeep Liberty

1 Answer

I am trying to remove my radiator and place it with a new one? I have a 1998 Dodge Grand Caravan.


Chrysler Caravan/Voyager/Town and Country 1996-1999
Radiator - REMOVAL & INSTALLATION

b6c74d3.jpg

Fig. 1: Before removing the hood latch, mark it's location on the crossmember with a paint marker or other tool
  1. Disconnect the negative battery cable.
CAUTION Do not remove the radiator cap or drain with the cooling system hot and under pressure or serious personal injury can occur from hot pressurized coolant.
  1. Place a drain pan under the radiator drain. Open the radiator drain plug and allow the coolant to drain.
  2. Remove the air intake resonator from the air cleaner assembly.
  3. Remove the Coolant Recovery System (CRS) overflow tank filler neck hose.
  4. Disconnect the cooling fan electrical connector located on the left side of the cooling fan module.
  5. Remove the CRS overflow tank mounting screw from the upper radiator crossmember.
  6. Remove the upper radiator-to-crossmember mounting screws.
  7. If equipped, disconnect the engine block heater wiring connector.
  8. Remove the upper radiator crossmember.
698a0e2.jpg

Fig. 4: ... and the upper radiator-to-crossmember bolts, then ...

3723c42.jpg

Fig. 5: ... unbolt the crossmember ...

a7447b0.jpg

Fig. 6: ... and lift it from the front of the vehicle
  1. Remove the entire air cleaner assembly.
  2. Disconnect and plug the automatic transaxle oil cooler lines from the radiator.
  3. Disconnect the upper and lower radiator hoses from the radiator. Remove the lower radiator hose clip from the cooling fan module.
  4. Remove the A/C condenser mounting fasteners and separate the A/C condenser from the radiator. Be sure the condenser is supported in position.
  5. Remove the A/C filter/drier mounting bracket, 2 mounting bolts to the cooling fan module and 2 mounting nuts to the filter/drier. Remove the mounting bracket.
  6. Carefully lift the radiator out of the engine compartment. Be careful not to damage the radiator cooling fins or water tubes during removal.
To install:
  1. Be sure the air seals are properly positioned before installation of the radiator. Lower the radiator into position and seat the radiator with the rubber isolators into the mounting holes provided.
  2. Install the A/C filter/drier and mounting bracket onto the cooling fan module. Install the bracket mounting fasteners.
  1. Install the A/C condenser to the radiator.
  2. Unplug and connect the transaxle oil cooler lines to the radiator.
  3. Connect the upper and lower radiator hoses to the radiator.
  4. Connect the CRS overflow tank filler neck hose to the radiator.
  5. Reconnect the cooling fan motor electrical connector.
  6. Install the entire air cleaner assembly.
  7. Install the upper radiator crossmember.
  8. Install the upper radiator mounting screws and torque to 105 inch lbs. (12 Nm).
  9. Reconnect the engine block heater electrical connector, if equipped.
  10. Install the CRS overflow tank mounting screw to the upper radiator crossmember. Torque the screw to 18 inch lbs. (2 Nm).
96d1171.jpg

Fig. 11: Unbolt the lower radiator mounting brackets

7318707.jpg

Fig. 12: Once all of the components are removed or set aside, the radiator can be removed from the vehicle
  1. Install the air intake resonator.
  2. Refill the cooling system with a 50 / 50 mixture of clean, fresh ethylene glycol antifreeze and water to the proper level.
  3. Reconnect the negative battery cable.
  4. Start the engine and run until it reaches normal operating temperature, then check the coolant level and the automatic transmission fluid level. Add fluids, if necessary.

Hope help with this, remember comment and rated this.

Jul 22, 2010 | 1998 Dodge Caravan

3 Answers

The cooling fans stop working


check your sensor that controls the cooling fans.may need to be replaced.

Jan 01, 2010 | 2003 Chevrolet Impala

1 Answer

How to replace radiator in a 2002 jeep grand cherokee v8


WARINING
Do not remove the cylinder block drain plugs or loosen the radiator drain **** with the system hot and under pressure. Serious burns from coolant can occur.

WARNING When removing the radiator or A/C condenser for any reason, note the location of all radiator- to-body and radiator-to-A/C condenser rubber air seals. These are used at the top, bottom and sides of the radiator and A/C condenser. To prevent overheating, these seals must be installed to their original positions.

Removal & Installation:
  1. Disconnect battery negative cable.
  2. Remove radiator pressure cap.
  3. For access to radiator draincock, remove radiator grill mounting screws and remove grill.
  4. Attach one end of a 24 inch long x 1 / 4 inch ID hose to the radiator petcock Put the other end into a clean container. Open petcock and drain radiator.
  5. Detach power steering fluid reservoir from fan shroud and lay aside.
  6. Disconnect electric cooling fan electrical connector, if equipped
  7. Disconnect CRS hose from radiator filler neck and remove from shroud retaining loops.
  8. Remove the four (4) viscous fan/drive assembly nuts from the water pump pulley and remove fan/drive assy.
  9. Remove the four (4) fan shroud to core support mounting screws.
  10. Remove the electric fan (if equipped) and shroud assembly from the vehicle
  11. Remove radiator upper crossmember.
  12. If equipped with air conditioning, separate radiator from condenser by removing condenser-to-radiator mounting brackets.
  13. Disconnect upper and lower radiator hoses.
  14. If equipped, disconnect and plug automatic transmission fluid cooler lines. Quick Connect Fitting Release Tool 6935 may be needed. If equipped with remote transmission cooler, remove line to cooler from bracket at bottom of radiator
  15. Lift radiator straight up and out of engine compartment taking care not to damage fins.
  16. If radiator is to be replaced, be sure to remove and transfer any components not included with replacement radiator.
7479d7e.gif

To install:
  1. The radiator is supplied with two alignment dowels. They are located on the bottom tank and fit into rubber grommets in the radiator lower crossmember.
  2. Lower radiator into engine compartment. Position alignment dowels into rubber grommets in radiator lower crossmember.
  3. If equipped with air conditioning, attach condenser to radiator with mounting brackets
  4. Install radiator upper crossmember and four mounting bolts.
  5. Install radiator upper crossmember-to-isolator nuts. Tighten nuts to 86 inch lbs. (10 Nm) torque. If isolator-to-radiator nuts had been removed, tighten them to 47 inch lbs. (5 Nm).
  6. Connect radiator upper and lower hoses.
  7. If equipped, connect automatic transmission fluid cooler lines. If equipped with remote cooler, attach cooler line to bracket at bottom of radiator.
  8. Install electric fan (if equipped) and shroud assembly. Insert alignment tabs at bottom of fan shroud into slots in bracket at bottom of radiator. Tighten mounting bolts to 31 inch lbs. (3 Nm).
  9. Connect electric cooling fan electrical connector.
  10. Install power steering reservoir to fan shroud.
  11. Install grill.
  12. Connect battery negative cable.
  13. Fill cooling system with correct coolant.
  14. Install pressure cap.
  15. Check and adjust automatic transmission fluid level (if equipped)
  16. Start engine and visually check for leaks.

For more details I suggest review the Service Repair Manual:
- Section-07-Cooling-System-Ewj7 (page 33 and next)
- Section-07a-Cooling-System-Ewj7a

I really hope helped with this (remember rated and comment this help) Good luck.

Nov 13, 2009 | 2002 Jeep Grand Cherokee

1 Answer

Want to replace the radiator on my 1997 ford thunderbird


Radiator Aluminum Core, Crossflow — 3.8L (Base) and 4.6L Engines
Removal
  1. Drain engine cooling system as described. Disconnect upper radiator hose (8260) and lower radiator hose (8286) and radiator overflow hose (8075) from the radiator (8005). Disconnect the transmission oil cooler inlet and outlet lines from the radiator.
  1. Remove cooling fan motor,fan blade (8600) and fan shroud (8146) assembly as described.
  1. Remove radiator upper bracket retaining bolts and remove bracket. Lift radiator from vehicle.
Installation
  1. Position the radiator into the vehicle. Install upper brackets and tighten bolts securely.
  1. Connect the transmission oil cooler lines to the transmission oil cooler fittings.
  1. Install cooling fan motor, fan blade and fan shroud assembly as described.
Engine Cooling Fan Motor, Fan Blade and Fan Shroud Assembly, Electrical Removal
  1. Disconnect (pull apart) the male-female cooling fan motor wiring connector at the side of the fan shroud (8146). Remove the male terminal connector retaining clip from the fan shroud mounting tab.
  1. Remove two fan shroud upper retaining bolts at the radiator tanks.
  1. Lift cooling fan motor/fan blade (8600)/fan shroud assembly past radiator (8005), disengaging fan shroud from two lower retaining clips.
Installation
  1. Follow removal procedure in reverse order.
  1. Tighten fan shroud retaining bolts to 5.2-7.2 Nm (46-63 lb-in).

  2. 10e2638.gif
    8d231fe.gif HOPE THIS HELPS.

    Oct 30, 2009 | 1997 Ford Thunderbird LX

    1 Answer

    How do i replace the radiaor? on this 2005 Hyundai do i remove the intake cover, then the cooling fan, the the motor mount? what?


    Below are instructions and a diagram for removing the radiator from your Santa Fe. There's nothing involving the motor mounts. Best of luck and please post back with any questions or just to rate the solution. Greg

    1. Drain the cooling system. Remove the radiator cap to speed draining.
    2. Remove the inlet hose from the radiator.
    3. Remove the transmission oil cooler lines from the retainer clip at the bottom of the cooling fan shroud.
    4. Remove the fan shroud clip from the condenser tubes.
    5. Remove the bolt that connects the fan shroud to the condenser hold down bracket.
    6. Remove the air deflectors from the top of the radiator.
    7. Remove the cooling fan shroud bolts.
    8. Remove the coolant reservoir hose from the radiator overflow neck.
    9. Remove the radiator upper support brackets and bolts that connect to the fan shroud.
    10. Disconnect the engine cooling fan motors electrical connectors.
    11. Remove the cooling fan motors electrical harness from the fan shroud clips.
    12. Remove the cooling fan shroud.
    13. Remove the outlet hose from the radiator.
    14. Disconnect the transaxle oil cooler pipes from the radiator.
    15. Tilt the top of the radiator rearward.
    16. Remove the condenser hold down bracket from the radiator.
    17. Lift the condenser from the mounting tabs on the radiator and position the condenser aside.
    18. Remove the radiator.
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    Aug 11, 2009 | 2005 Hyundai Santa Fe

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