Question about 1999 Mazda 626

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Fan relays i have three relays next to the battery of my mazda 626 which one controls which fan etc? that way i know which one 2 replace when its goes out....i know if one goes out your fan does not come one and overheat. my repair manual doesnt realy explain.

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All you have to do is run the car untill the fan turns on while waiting touch the top of each relay with your fingers, and the one that clicks will tell that it is the relay for the fan.

Posted on Jun 30, 2009

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Mazda 626 v6 1999 when ac off overheating, if ac on -ok, if ac off 2 fans not works, if ac on 2 fans ok, Ireplace radiator, termastat, relay for fans.

Have you replaced the temperature switch sensors?
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Have you confirmed the water pump is working? If the car is moving at 10-20 MPH you should have enough air going across the radiator to prevent overheating in a moderate climate at this time of year.

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There should be two fuses for the cooling fan relay in the main box near the battery.
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Mar 02, 2013 | 2000 Mazda 626

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Where is cooling fan switch located on 1999 mazda 626 2.0L

Cooling fan switches are located on the bottom of the radiator. These often control a relay that runs the fan. If the fan is not working, it could be the fan that is faulty. Make sure that the fan blade will rotate manually. Try applying +12v directly to the fan to test that it runs.

Sep 07, 2011 | 1999 Mazda 626

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My mazda 626 2002 is overheating we have replaced the resevoir and the caps and its still doing it its fine when driving than when you come to an idle it starts to heat up again and than will go back down...

it sounds like the radiator fans are not coming on. Check the fuses and relays for the fans. there is a temperature switch to control when the fan(s) comes on. If you have AC then the fans should come on when you turn on the AC.

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1 Answer

Have 1994 Mazda 626/DX. The engine overheats when sitting idle. Driver side fan comes on,but,passenger side engine fan doesn't. There is no voltage to the fan,the fan relay coil is Not being...

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The fan on the radiator is not working. The

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I have a 1996 Mazda 626, the check engine light came on and the car has been redlining the the temp gauge. I got the engine codes which are: p0117 and p0421. Does anyone know how to solve this problem?...

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1 Answer

2001 Mazda 626, intermittently overheats - especially but not always when not moving

Sounds like a fan issue...

Maybe a fuse, could be the relay.

Start the car and let it run at idle while not moving... if the car over heats and the fan never kicked on, then you need to figure out why it isn't kicking on.

to check the fan you simply need tro run a direct lead to the battery..if it doesn't come on then the motor is probably burnt up, if it comes on with a direct lead, then you have another issue.. fuse, relay, or thermostat.

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