Question about 1999 Mazda 626

2 Answers

Cooling/electrical one of my radiator fans remains on after I shut off me engine

Posted by on

2 Answers

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 7 Answers

Its commonly known as a thermo-fan (thermostat). runs off power until engine cools.... pulls extra air flow through radiator when car is idling. Check to ensure radiator is full (water/ coolant), but it is normal for it to run for a min or 2 after engine shut off. Still, CHECK YOUR RADIATOR IS FULL, because dry engines die young.

Posted on Oct 23, 2008

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 82 Answers

How long does it remain on for?
This is quite normal. It should switch of once the radiator temperature drops..

Posted on Oct 23, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

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

Where can I get pictures of the fans in the engine compartment?


Radiator Cooling Fans - Professional Mechanics Online

www.2carpros.com/articles/how-an-electric-cooling-fan-works
Aug 1, 2015 - Step 1 - There are primarily two types of engine radiator cooling fan, electric and manual. A manual fan is connected to the engine drive pulleys ...

article How a fan clutch works

https://www.2carpros.com/articles/how-a-clutch-fan-works
Sep 3, 2015 - Step 1 - A fan clutch function is to engage the fan blade to the shaft when heated which is mounted to the front of the engine attached to the ...

Improving an Engine Cooling Fan Using Design for Six Sigma

www.mathworks.com/.../improving-an-engine-cooling-fan-u...

MathWorksA key component of an engine's cooling system is the cooling fan, which ... a shroud to direct airflow through the radiator (image courtesy of Novak Conversions).

Dec 21, 2015 | 1996 Chevrolet Cavalier

1 Answer

Front ac blower wont shut off after the truck is shut off


This would indicate to me the vehicle has had an issue with the wiring, perhaps an accident in the front end, and someone has hooked up the wires wrong.
The radiator-cooling electric fan can run up to several minutes after you shut off the engine, as it is cooling off the cooling system.
The A/C fan, however, should shut off with the engine.
God bless your efforts.

Sep 07, 2015 | 2003 GMC Yukon XL 1500 SLT

1 Answer

As soon as i turn the key on(without starting the engine), the radiator and a/c fans starts.


This sounds like the heat sensor in the engine cooling system is failing/has failed completely (internal switching contact remains closed). The engine cooling fan should only come on at the prescribed heat temperature but will also remain active after shutting the engine down, if the engine temp is still above the prescribed temp. Regarding the A/C fan, this is most likely a wiring fault, possibly a short circuit with the car's ignition circuit.

Jul 25, 2014 | 2005 Mitsubishi Lancer 1.6

1 Answer

2002 Lexus es300 electrical cooling fan shuts on and off with ac on


Hi Dennis, When the AC is selected an additional cooling fan should cut in to cool the additional requirements of the condenser radiator, mounted in front of the radiator cooling the engine. If the operation of the AC fan is intermittent the most probable cause is a defective control relay or a loose connection. The relays are easy to find, being in a housing usually marked on top of the outside. Regards John

Jul 21, 2012 | 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

My radiator fan runs in full after a long drive


Many cars have an electric fan that will run on after the car has stopped. This is because the thermostatic switch is still hot to allow the fan to shut down. Often the thermostatic switch is set into the engine block but the fan only cools the water in the radiator. Only when the engine block has cooled will the fan shut off and this can take some minutes

May 16, 2010 | Cars & Trucks

1 Answer

How do i remove radiator fan from my 2004 pt cruiser?


Hope this helps!

Removal & Installation
NOTE The fan motor, fan, and the shroud are serviced as an assembly.



CAUTION Do not open the radiator draincock with the system hot and under pressure, because serious burns from coolant can occur.


  1. Disconnect negative cable from battery.
  2. Remove battery and battery tray.
  3. Drain cooling system below upper radiator hose level.
  4. Remove grille.
  5. Remove upper radiator closure panel and center brace.
  6. Disconnect upper radiator hose from radiator.
  7. For turbocharger equipped vehicles: Remove radiator inlet neck.
  8. Hoist vehicle.
  9. Disconnect radiator fan electrical connector (.
  10. Remove the two lower and left side radiator fan screws and.
  11. Lower vehicle and remove the remaining radiator fan attaching screws.

    WARNING Care should be taken not to damage the radiator cooling fins and tubes during fan removal.

  12. Remove radiator fan by lifting up from the engine compartment.

c83d6ac.gif
Radiator fan mounting points

To install:
  1. Install the radiator fan into position on the radiator.
  2. Hand-start all radiator fan fasteners.
  3. Tighten all radiator fan retaining screws to 55 inch lbs. (6 Nm).
  4. Connect the radiator fan electrical connector.
  5. Carefully lower the vehicle.
  6. For turbocharger equipped vehicles: Inspect radiator inlet neck O-ring. Replace if necessary. Install radiator inlet neck. Torque fasteners to 55 inch lbs. (6 Nm).
  7. Connect the upper radiator hose to radiator. Align hose and position clamp so it will not interfere with the engine or the hood.
  8. Install upper radiator closure panel and center brace.
  9. Install grille.
  10. Install battery tray and battery.
  11. Connect cables to battery.
  12. Fill cooling system.

Apr 18, 2010 | 2004 Chrysler PT Cruiser

5 Answers

Why does my radiator cooling fan remain on after I turn off the ignition?


The car has a computer that is linked to the engine. It is hard wired to it meaning the computer is always on. Upon shutting your engine off taking the keys in hand the computer is still on sensing the engines temperture. The coolant sensor will send power to the relay to keep the fans running untill cooled down enough. Then the sensor will cut off power to the relay shutting off the fans

Mar 19, 2010 | 2002 Jaguar X-Type

2 Answers

Radiator fan runs after car is turned off. Only occurs when A/C is run for more than 10-15 min. Shuts off after a few minutes, but is concerning.


That is nothing to worry about the fan remains running after the vehicle shuts off in order for the engine to cool down. Once the motor cools down sensors trigger the fan to shut it off.

Sep 10, 2009 | 2004 Ford Focus

Not finding what you are looking for?
1999 Mazda 626 Logo

Related Topics:

171 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mazda Experts

yadayada
yadayada

Level 3 Expert

60769 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21949 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6811 Answers

Are you a Mazda Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...