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Locating cooling fan sensor on peugot 407 2004

Fan comes on when engine cold stays on when engine switched off

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6ya6ya
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Posted on Jan 02, 2017

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leetamara
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SOURCE: Cooling fan wont work

The water temp sensor is located near the thermostat housing. This sensor is what tells the ECM to turn the fan on/off. The water temp sending unit is located near the same area. You know you have the correct sensor is because the water temp sensor has a 2 prong plug. The water temp sending unit only has 1 prong.

Posted on Sep 27, 2008

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SOURCE: Need the Location of the temperature sensor on 95 olds cutlass.

The image isn't loading, so I can't tell if this has been 100% answered, but here's the text version:

Should be a fuse panel under the hood, passenger side near the coolant tank and radiator inlet. In that panel should be 2 large square fuses. These are fuse/relay combo deals. Switching these out should fix you right up. Mine had the same problem about a month ago and I had to replace them then.

Posted on Feb 21, 2009

  • 1 Answer

SOURCE: can't locate the cooling fan sensor or relay.

the radiator fan relay is located behind and slightly lower than the r/f headlamp.best way to get to this is by removing right side of front fascia out enough to get behind it. this will give you acsess to the relay.i work at a jeep dealer and have done this many times.

Posted on Apr 18, 2009

  • 740 Answers

SOURCE: 1996 Honda Odyssey engine cooling fan stays on.

I don't thing there is a short there is radiator fan switch that control these fan, it works off of heat. There is also a fan relay that control look in fuse box inside the hood for fan relay and make sure its NOT stuck , if it isn't then its the fan switch.This switch may be bad and cause the fan to turn on. Replace radiator fan switch located on water outlet on engine and this should solve your problem. A

Posted on May 15, 2009

ghost45
  • 1280 Answers

SOURCE: Where is the radiator cooling fan switch sensor?

BOTH!... when you find out WHY the fan is not operating, let us know... OK?

Posted on Sep 10, 2009

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My suzuki swifts fan comes on even when cold the car suddenly revs to 1000 from 800rpm. I can shut her off and it revs normally for 2 mins then the fan kicks in and the revs go up any suggestion plz


A sticking cooling fan relay ! What year is your swift ? The ECT - engine coolant temp. sensor is an input to the PCM - engine computer ,when the engine temperature reaches 213 degrees ,there about ,the PCM will supply a ground to energize the relay turning on the cooling fan . Also when this happens the PCM will raise the idle RPM to compensate for the load on the engine . Do you know what a relay is ? It is probably located in the under hood fuse / relay box . It will give you a diagram in your owners manual >

Sep 29, 2015 | Suzuki Cars & Trucks

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2002 Suburban_ Engine off but air stays on. When engine is on a/c light stays on & ait stays on even if the fan is turned off


Fan will run for a certain period of time after shutting down motor of vehicle. This is normal. Your engine is still hot when you turn the key off. There are sensors that tell the computer when the engine is cool enough for the fans to shut off.

Jan 25, 2013 | Chevrolet Suburban Cars & Trucks

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Fans will not turn on therefore cause vehicle to overheat


cooling fan will not come on until about 230 degrees, if fans still do not work. check the fuses and relay. if ok then run a wire to fan from battery.on fan side connection, run a wire from battery positive to fan connection. run a wire from negative to ground connection.if fan will not come on it is either bad or the coolant temp, sensor is bad. because this sensor send info to pcm from various running conditions. it is very important that this sensor works. it can cause;
  • Extended crank time when the engine is cold
  • Poor fuel economy
  • Spark knock
  • Lack of engine power
  • Erratic and/or high idle
  • Engine cooling fan stays running all the time
  • Engine cooling fan fails to turn on
  • Engine overheating
  • Jun 20, 2010 | 1996 Nissan Sentra

    1 Answer

    Where is the location of the fan heat sensor to turn the fan on when it gets hot on a 2002 Sunfire 2.2 engine ?


    Both the 2.2 and 2.4 liter engines use the computer to turn the fan control relay on and off. The computer gets it's temperature information from a coolant temp sensor that is dedicated just to telling the computer what the coolant temperature is. There isn't a seperate sensor or switch just for the cooling fans on either engine. It's very rare for the coolant temp sensor to fail and when they do there is almost always a corresponding performance problem as the computer no longer knows how cold or warm the engine is and will turn on the "check engine" warning lamp and set a corresponding service code. If the fans aren't working I would look first for a blown fan fuse [usually 30 amps or larger] or you could possibly have a bad fan motor. When working properly these cooling fans don't come on until the engine reaches about 218 degrees and then go off again as the temperature drops to about 210. The fan should come on anytime you have the a/c running while the vehicle is sitting & running as it needs the fan to run to remove heat from the a/c system. Once the vehicle is over about 35 mph the fan rarely comes on as enough air is being forced through the radiator and condensor to cool everything properly.

    Jun 08, 2010 | 2002 Pontiac Sunfire

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    2000 BMW 323 fan keeps running under hood and has now run battery down. What could be the problem.


    Hi,
    First - disconnect fan and charge your battery - or you could do permanent damage to it.

    With the engine cool, locate the Fan thermal switch. It should be on the radiator itself. Pull off the connection (this should turn off the fan)

    Check the two terminals with a meter as they should not conduct when cool.
    Fit a replacement. You may loosa a little coolant - but not too much if you are quick.
    Top up with similar type.

    If the fan switch is ok, it may be a relay which has stuck. This should be located at the end of the fan wiring loom.

    Aug 30, 2009 | BMW 323 Cars & Trucks

    3 Answers

    Cooling fans will not come on


    Hi,

    Fan Relay switch is stuck open. This of course assumes your temperature sensor is working appropriately. Which I assumed since you seem to know that the engine is running hot.

    Replace the fan relay switch. The relay switch is tripped when the temperature sensor tells the computer the engine is too hot.

    Until you get the relay switch replaced, you can either by-pass the relay switch and directly connect the fans to the battery, or turn on your A/C ALL the time and use it at a minimum setting. This will keep the cooling fans running at all times.

    Hope i helped you.

    Thanks for using ' Fixya ' and have a nice day!!

    Jul 26, 2009 | Volkswagen Jetta Cars & Trucks

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    1991 Honda civic 4 dr. The temp gage stays on cold all the time and the engine cooling fan never kicks on. Is there a relay somewhere for them? As soon as it gets hot the check engine light comes...


    check on the engine around the thermostat housing for a fan control sensor. if your engine fan doesn't come on when the a/c is on, then thats your prob.

    Jul 20, 2009 | 1991 Honda Civic

    1 Answer

    1996 Honda Odyssey engine cooling fan stays on.


    I don't thing there is a short there is radiator fan switch that control these fan, it works off of heat. There is also a fan relay that control look in fuse box inside the hood for fan relay and make sure its NOT stuck , if it isn't then its the fan switch.This switch may be bad and cause the fan to turn on. Replace radiator fan switch located on water outlet on engine and this should solve your problem. A

    May 15, 2009 | 1996 Honda Odyssey

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