Question about 1992 Mazda Protege

1 Answer

Cooling fan wont come on at temp

I have 92 protege that has a two cooling fans and neither one is coming on at temp, however, they both come on when i turn on my a/c. i have already replaced both fans and checked the relays and they seem OK. Any suggestions would be great thank you.

Posted by on

  • bad_dog1
    bad_dog1 Mar 04, 2009

    Any way to test the radiator fan switch before i replace it?

  • bad_dog1
    bad_dog1 Mar 07, 2009

    i already have a meter just dont know what the sensor is suppose to read



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 740 Answers

This vehicle has a radiator fan switch, it completes the circuit when the water temp get up to N.O.T normal operating temperature and turn the fans on, try changing radiator fan switch. Good luck and thanks for using FIX YA

Posted on Mar 03, 2009

  • O Mclean Mar 05, 2009

    Yes it has to be done with a voltmeter by checking resistance is sensor. its a bit technical, the sensor is just a few bucj=ks a voltmeter is alot more if you don't have one.



1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

2 Answers

Auxiliary fan not kicking on (it has 2 fans, the driver's side cooling fan and the passenger side fan that runs intermittently that comes on when a/c or when heat is set to defrost setting stopped com

It won't cause any overheating, that fan is only suppose to come on when the a/c is on. Since it's cold, it's not going to come on because the engine has at least 2 sensors that tell the temp and it can see it's not needed. Now, if you turn it on during the summer and it doesn't come on and your a/c doesn't work, you may have blown the relay or your a/c may be low/out.

Nov 28, 2013 | 2003 Mazda Protege

1 Answer

I have a 1997 mazda protege with a coolinf fan prob. The fans work when I turn on the AC but do not work when the engine gets hot at idleing speeds. I replaced radiator and thermastate and also cooling...

No, the fans have separate relays. You have to use the wiring diagram to sort it out. The pcm turns on the cooling fan relay with a ground signal on a purple/black wire when the temp sensor signal rises too high.



Oct 31, 2017 | 1997 Mazda Protege

1 Answer

Where is the cooling fan switch on 92 cutlass supreme?

It doesn't exactly work that way. The temp sensor on the engine sends a signal to the computer, and the computer grounds the fan relay.
You could use a scanner to watch the temp sensor data, or jumper the fan relay to see if the fans will run.
The fans should also come on when the ac is running.

Sep 19, 2012 | 1992 Oldsmobile Cutlass Supreme

2 Answers

My cooling fan doesnt come on when car is hot. not over heating but runs hotter than should. whats wrong

there is a switch located in the engine that turns on the fan. it may be faulty. the fan motor itself may be faulty. if you run power & ground directly to the fan motor connector it should run. if it doesn't replace it.

Jan 15, 2011 | 1997 Mazda Protege

1 Answer

My cooling fan hasnt come on since ive owned the car and my car runs a little hot but temp guage doesnt say it is hot. what are some thing that could be wrong

make sure you have plenty of coolant in the system, there is a fan switch controlled by coolant temp that turns the fan on and off. If you dont have enough coolant it will never turn on. If its full, you may have a bad fan switch.

Jan 15, 2011 | 1997 Mazda Protege

1 Answer

Cooling fan problem on 1992 pontica firebird

The cooling fan switch is built into the ECM. The ECM tells the fan to turn on at about 220 degrees. If you have a bad coolant temp sensor you might have trouble there. Usualy I find the relay or fan motor to be the problem. In some cases the ECM or CTS is the problem. I hope this helps.
Thank You,

Aug 09, 2009 | 1992 Chevrolet Camaro

2 Answers


check the temp sender as this is what activates the fan

Apr 28, 2009 | 1992 Pontiac Bonneville

2 Answers

Overheating and stalling

Check the fuse and relay for the cooling fan before it overheats again so you don't blow the head gasket on the motor. After you replace the fuse/relay let it idle keeping an eye on the temperature gauge, make sure as it reaches a little over half way the cooling fan should come on. If it does'nt then your coolant temp sensor may be at fault. Good luck and be safe.

Apr 23, 2009 | 1992 Honda Accord

2 Answers

Cooling Fans Wont Kick In

Temp sending unit has gone out it tells the fans through the relays to come on. Those units are usually found on th block where the radiator hose couples to the motor.

Feb 10, 2009 | 1992 Pontiac Grand Prix

1 Answer

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.

Sep 26, 2008 | 1998 Chevrolet Cavalier

Not finding what you are looking for?
1992 Mazda Protege Logo

Related Topics:

435 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mazda Experts


Level 3 Expert

77939 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8832 Answers

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

Answer questions

Manuals & User Guides