Question about 1993 Mazda Protege

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AC does not work. What should be the basic troubleshooting steps?

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Put gagues on system check to see if system is full of r134a or if refridgerant has leaked out if no r134a in system ,interduce dye into system to find leak. if pleanty of R134a in system check all fuses and relay, if all is good check compressor

Posted on Aug 02, 2013

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google it.
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God bless you
7_9_2012_1_11_44_pm.jpg

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Y wont my heater get hot and my ac wont get cold?


Ok well every heating system and A/c system work very much the same...there are some troubleshooting Steps I would suggest...
First for the heating issue:
Step 1: Check Coolant level Low coolant can cause warm to cool air threw your heating system, not enough to fully heat...Caution: make sure the engine is cool when checking..You should have a tank that you can see the level..if not the top of the radiator is good.
Step 2: Any leaks in the coolant system, by just looking under the hood depending on the color, (Purple, Red, Orange, and Green) The system needs to obtain a certain Pressure to be effective..
Step 3: If all above checks ok...Assuming the blower motor is working correctly and good flow is present, there may be a vacuum leak or electronic divert-er malfunctioning( mixing cold and hot air thus getting warm air)
Step 4: Bring it to a shop, you may have a plugged heater core, an malfunctioning Thermostat, or an inefficient water pump...Hope this helps.

As for the A/c Not cooling...All cars that are 96 or newer must be charged with R-134a refrigerant...This can only be serviced by a shop that can deal with A/C recharging...could be low refrigerant, bad a/c clutch, bad compressor good luck hope this help

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The ac in my 1998 Lincoln Towncar is bolowing very hot air. The evapoarator and lines under the hood are cold and there is condensation present on them. The temperature controls switch seems to be working...


Your lines are cooling but you still have heat coming out. Check you heater lines going to the firewall. On one of them is a valve most likely with a vacum line attached. You should be able to close that valve manually and see if that resolves the issue. If it does you have two options. 1, Replace the valve or trace down the vacum line and see if you can repair it. 2, You can disconnect both heater lines and connect them together basically removing the heater from the equation. Another problem could be the AC coil not working as it should due to a blockage of some type but this is unlikely since you lines are cooling.

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Thanks for writing to Fixya.com.

Please find the basic reasons and its troubleshooting steps to verify why the car won’t start.

http://www.ehow.com/video_112584_troubleshoot-car-wont.html

Thanks for contacting Fixya and please accept the solution if it has helped you.

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How can I do my own AC recharge


Assuming you do not have a leak preventing a recharge, here are some basic steps on recharging:
http://www.aa1car.com/library/ac_recharging.htm

R134a can be purchased at any auto parts store..

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