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Temperature gauge is not working and both cooling fans are running

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WHAT TYPE OF CAR IS IT?

Posted on Mar 14, 2011

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My 1992 Chevy cavalier used to run at 1/4 temperature gauge, started running super hot so I replaced the water pump... Now it stays at 1/2 temperature gauge steady. Why? Also, how does electric fan work?...


I'm not sure about the electric fan relay or fuse are but you may want to have your radiator flushed. It's possible that some of the tubes in it are plugged up and so your cooling efficiency could be low.

Oct 24, 2012 | Cars & Trucks

1 Answer

What operates the cooling fan on engine


check the temperature sensor maybe is disconect or you need replace. check if temperature gauge is working because maybe is a wire loose ,bad contact or the wire is cut.

Jul 22, 2012 | 1995 Ford Taurus

1 Answer

My 2002 Montana Van will over heat while idling, once I start driving the temperature gauge will come back to normal. I checked under the hood and the coolant in the reservoir is boiling and the electric...


These fans should turn on at about 220 degrees, give or take a couple, and then turn back off at about 210 degrees.Fans should also come on when engine is idling with the a/c on [provided the a/c works of course] If the fan[s] isn't running and the gauge is over about 3/4 of the way or will go all the way to the end then odds are your fan's aren't capable of working for some reason. The classic symptoms of a cooling fan not working are what you are describing: Cools fine at highway speeds, overheats at slow speeds. I would start by checking the cooling fan fuses located in the underhood fuse panel. I believe they are marked Cooling fan 1 and Cooling fan 2 and both should both be 30 amp fuses. If the fuses are good then you might have problems with the fan motors themselves. Hope this helps you get it working again!

Jul 15, 2010 | 2002 Pontiac Montana

1 Answer

I have a ford taurus that the cooling fans will only run when when the ac is on 2002/ engine 3.0 efi/


The cooling fans on this vehicle won't come on unless the a/c is on or until the engine coolant temperature reaches about 220 degrees. Once the coolant has reached this temperature the fans will come and and run until the engine cools down to about 210 degrees and they will then turn off until the temperature climbs up again. The fans usually aren't on at all at highway speeds because enough air is being forced through the radiator to keep everything cool. The true test of cooling fan operation is to allow the car to idle in park with both the a/c and defrost turned off and let it run until the fans come on. When The temp gauge reaches about 3/4 of the way up, give or take a bit, the fans should come on. Keep an eye on the gauge so the engine doesn't overheat just in case there really is a fan control problem but I'd say you'll most likely find that the fans are working properly since they do come on for the a/c. Hope this helps!

Jul 07, 2010 | 2002 Ford Taurus

1 Answer

I have a 95" model ford aspire. Right now am experiencing a problem on mostly the fuel gauge and the cooling fan. the gauge does not indicate the amount of gas, while the cooling fan does not run. What...


cooling fan has a relay. check it first. Then check the ECT, Engine Coolant Temperature Sensor. It is on the engine and sends a signal to the PCM, Engine Computer.
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Section 03-03: Engine Cooling 1996 Aspire Workshop Manual
DESCRIPTION AND OPERATION Cooling Fan, Electric sty~us~en~file=ani_caut.gif~gen~ref.gif WARNING: WHEN WORKING IN THE ENGINE COMPARTMENT, STAY CLEAR OF THE FAN BLADE. BECAUSE IT IS ELECTRIC AND TEMPERATURE SENSITIVE, IT CAN START AT ANY TIME IF THE IGNITION IS ON.
The electric cooling fan is an electro-drive type. Its operation depends upon engine temperature and ignition switch (11572) position. If engine coolant temperature reaches 97°C (207° F) and the ignition switch is in the ON position, the engine coolant temperature sensor (ECT sensor) (12A648) sends a signal to the powertrain control module (PCM) (12A650) which turns the engine cooling fan motor (8K621) and fan blade assembly on. Because it cannot operate unless the ignition switch is ON, the engine cooling fan motor and fan blade assembly does not operate after engine shutdown. The fan control relay (FC relay) is located in the LH front corner of the engine compartment, between the battery (10655) and the headlamp assembly. Circuit protection is provided by a 30A fuse labeled COOLING FAN in the main fuse junction panel to the left of the battery. If the vehicle is equipped with air conditioning, an additional relay is installed in the circuit. The A/C clutch control relay (19D572) bypasses the engine temperature portion of the circuit. The bypass circuit allows the engine cooling fan motor to operate whenever the A/C switch is engaged.
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Fuel pump/sender access is through cover under rear seat.


Fuel Gauge

  1. Remove the instrument cluster. Refer to the procedure in this section.
  1. Using a jumper, connect the battery positive terminal to the fuel gauge "+" terminal and the battery negative terminal to the fuel gauge "-" terminal.
  1. Connect one lead of a Rotunda Instrument Gauge System Tester 014-R1063 or equivalent to the "F-U" terminal of the fuel gauge (9280), and connect the other lead to the "-" terminal of the fuel gauge.
  1. Adjust the instrument gauge system tester to the resistances shown in the illustration.


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  1. If the fuel gauge does not operate as specified, replace the fuel gauge. If the fuel gauge is OK, return to the Pinpoint Test.


Fuel Level Sensor

  1. Remove the fuel level sensor (9275). Refer to Section 10-01 for the removal procedure.
  2. Measure the resistance between terminal A and terminal B of the fuel level sensor.

    Connector Shown From Component Side
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  1. Adjust the fuel tank float to the following positions:
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  1. If the resistances are not as specified, replace the fuel level sensor. If the fuel level sensor is OK, return to the Pinpoint Test.
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Mar 27, 2009 | 1995 Ford Aspire

3 Answers

Temperature gauge is high but radiatior fan is working


how is the radiator and the thermostat?  Do the cooling fans come on?  Are you totally filling the cooling system and bleeding it?

Mar 25, 2009 | 1998 Toyota Corolla

2 Answers

Over heating, and no AC


Cooling Fan Malfunction. Your radiator fans are most likely not working. That's why the temperature is OK when you're driving full speed and the wind is cooling your radiator. You need to check and/or replace your cooling switch module and radiator fans (most likely it's the cooling module). If you were sitting idle or in stop-n-go traffic for an extended period of time, your car WOULD overheat because the fans aren't kicking in cooling your radiator - then you would see all of the cooling system water spill out of the coolant reservoir, before this would happen your temperature gauge would go to the red and the digital dislpay would flash a thermometer (indicating you're about to overheat in 2 mintues). I hope this helps someone out there - Yes, it happened to me in the middle of nowhere.

Jun 25, 2008 | 2002 Audi TT

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