Question about 1999 Mazda 626

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We have a 1999 Mazda 626LX and when you turn on the air conditioning black foam type stuff blows everywhere. What could be causing this and it there an easy fix for it.

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It is the insulation that seals the vents to the dash, it is just dry rotted and will continue to so, it is somewhat normal as it occurs often in all cars. Hope this helped tim

Posted on Aug 28, 2010

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Posted on Jan 02, 2017

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I have a mazda 626 1992 GE Has been sitting for a bit over a year replaced the Air Mass Sensor as car was not getting power and back firing was told it was the Air Mass Sesnor. The car is now running rough...


gas has a "shelf life" with it sitting that long try an upper cylinder lubercant such as lucas oil or sea foam and follow instructions as directed also put in new gas

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While changing the spark plugs on the mazda6 i noticed some spark plugs were practically drenched in oil, one seemed to have engine coolant, what can be reasons for this? Head Gasket?


sea foam is a type of foam created by the agitation of seawater,particularly when it contains higher concentrations of dissolved organic matter that will just clogg an block the engine. your head gasket is gone you will need to replace the head gasket an probably flush the engine too... Hope this helps

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What is the difference between evaporator core vs. heater core


Very good question. A heater core takes heated water directly from the engine and forces it through a matrix of flat metal plates (like on a motorbike cylinder head), a fan is turned on to force cold air through the hot matrix, blowing hot air into the car cabin.
An evaporator doesn't. It compresses a chemical gas (separate to the engine cooling system) in a circuit of pipes which then evaporate in a different pressured chamber, the rapid depressurisation causes the chemical to super cool so when the same fan is switched on it draws super cooled air from the evaporator/condenser circuit.
The result is ice cool air blown about the cabin.
Simple experiment : Buy a can of Butane Gas, squeeze the nipple to release the gas quickly (stay away from flames !!!) after a few seconds the can will super cool, the water droplets stuck to the can side are a result of extreme temp drops, the can will freeze on the outside ! You now know how air conditioning works ! Give yourself a star. Now make us a perpetual motor.

Learning is fun. Good Luck Friend Red.

Jul 13, 2012 | Mazda Cars & Trucks

2 Answers

Chunks of black insulation blows out the air vents


Here's a pic of the foam in my dash heating and cooling vents
6_12_2015_6_05_12_am.jpg

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1999 Dodge 2500 Diesel 4x4-AC system on with ac blowing, began to become warm. Suddenly the unit was blowing out what looks like some kind of black foam filter fragments. What is this?


YOU MAY HAVE A CALAPSED BIO FILTER WHICH MAY BE BLOCKING THE DUCTING NOT LETTING COOL AIR BY, YOU MAY HAVE TO TAKE DOWN THE A/C BLOWER ASSEMBLY TO FIND THE BLOCKAGE AND REPLACE THE FILTER.

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I have a 1989 Mazda 626 with no air conditioning. i would like to change that being its getting around 90 degrees already so please help me. Ok on the control board for the a/c 1 and 2 wont blow air. 3 and...


hmmm maybe a bad compressor bearly giving what it has left till it dies? if your getting cold air then there is not freon leak i would think. its gonna cost you. you gotta take it in to some pros. ac stuff is never simple unless its low on freon. are you hearing a loud scratchy sound while its on coming from the compressor?

Apr 24, 2010 | 1989 Mazda 626

1 Answer

1999 Mazda 626 is blowing small black particles our of the ac vent. What is this and how do I fix it?


Most likely the air filter located in under the dashboard has rotted apart. This will continue until all the pieces have blown out or you change the filter.

Sep 25, 2009 | 1999 Mazda 626

1 Answer

Engine firing order 1996 Mazda 626LX


If is $ Cylinders 1-3-4-2, locate the cylinder Number one on the distributor than spin the motor and look which way the rotor turns follow it by 1 next 3 next 4 next 2

Jan 21, 2009 | 1999 Mazda 626

1 Answer

1995 Chevy Silverado 4X4 cold air blows through floor vent


none of the above, the vent door is stuck inthe open position most probable cause is vacum leak look closer to your fire wall and you will see a very thin vacum hose going into the vehice which seems to be unpluged!!

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