Question about 1999 Chevrolet Cavalier

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Fan relay switch 1965 cavalier

Can you please tell me where the fan relay switch is located. I air conditioner only blows on speeds 1 and 2

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  • yadayada
    yadayada May 11, 2010

    this is a 1965? can't be right

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You have a bad blower resister /relay and it is located under the passenger side of the dash under the glove box!

Posted on May 14, 2009

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Posted on Jan 02, 2017

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What could cause my 93 Chevy Cavalier to overheat? I just put in a new water pump and a new thermostat but it still tends to overheat and now has a leak from the thermostat intake hose.


We need rule out a few basic things to properly diagnose the overheating problems.
Step 1:Do you think?there is enough antifreeze in the radiator? Don t just look inside the plastic overflow bottle only, you should remove the radiator cap and then look inside the radiator.We should see the fluid level whether it is at its proper level or not. Most cars and trucks will hold a mixture of coolant and water .You should have the cooling system pressure tested for a leak if you have to add more than a pint of fluid .If we see any obvious fluid loss in the engine compartment or on the ground , we should also have the system tested.
Step 2:If you don not see any coolant leak or low fluid level , then you should determine when the overheating problems occurred.If the engine overheats only at a stop or idle ,Most front wheel drive cars will use an electric cooling fan motor located in front or behind the radiator. The existence of function of the cooling fan is to improve airflow across the radiator at stops and low speeds.The fan is controlled by sensors,it regulates the engine temperature and additional load that might be placed on the engine.The cooling fan is required by the air conditioning compressor to operate at idle when the compressor is on.It is a quick way to check the cooling fan operation to turn on the air conditioner.
Also the cooling fan should come on with the air conditioner compressor. Some automobiles will have two electric fans, one is the air conditioner condenser fan and the other is for the radiator .It will have a belt driven fan blade and fan clutch if your vehicle does not have an electric cooling fan on the radiator . This fan should be pulling a large amount of warm and hot air across the radiator onto the engine to keep it cool.The radiator fan is usually closer to the middle of the radiator. The radiator fan is responsible for cooling of the engine, while the condenser fan is responsible for increasing air conditioning efficiency at idle and low speed.If there is ample airflow across the radiator at idle. The radiator is responsible for the primary heat exchange for the engine, and airflow is crucial at this time.
Step 3:Again, we have ample airflow across the radiator, so we must inspect the proper antifreeze circulation.If there is a restriction in the system , it will produce the same affect.Water calcification can accumulate in the radiator and then drastically reduce the flow of coolant at a very high speed. Removing the radiator from the vehicle are the only two real cures for a clogged radiator.It be a waste of time and money trying to correct a restricted radiator when you use a can of radiator flush additive. Of course there are more technical issues that could produce an overheating problems, but the check list described above will identify the most common.Anything you can do to help the mechanic to deal with the problem will probably result in less diagnostic charges, and it might help insure a proper diagnosis of the problem at once of your 1993 Chevrolet Cavalier.
Step 4:You must inspect an electric motor cooling fan ,it will start with ignition key switch off, it has failed and needs to be replaced if the 1993 Chevrolet Cavalier fan motor does not spin freely . The electrical system operates the fan needs to be tested,If the fan motor "freewheels" that . Start the engine and then turn the air conditioner to the coolest setting, if your automobile does not have an air conditioner skip this step.The car air conditioner will operate the 1993 Chevrolet Cavalier cooling fan should activate within five minutes , the fan motor fuse must be checked first and the fuse condition is good the remainder of the electrical system must be checked.
Step 5:A wiring schematic is needed to further troubleshoot this problem ,which is located in a repair service manual. You may use the wiring schematic to trace the circuit through the fuse and relay components, if everything of 1993 Chevrolet Cavalier tests fine, the fan motor has failed and needs to be replaced. The most common repair is the cooling fan motor failure.
This isn't only theory. You can take these steps into practice.You can deal with the 1993 Chevrolet Cavalier overheating problems yourself.

Jul 18, 2016 | Cars & Trucks

2 Answers

Blower motor blows high whenever ignition switch is on


Sounds like your fan switch could be shorted out

Apr 14, 2015 | 2000 Chrysler LHS

1 Answer

2002 mazda mpv air conditioner fan control module problem?


Check and replace fan switch control module located in glove box...$30. part. Do it yourself.

Oct 20, 2017 | 2002 Mazda MPV

1 Answer

Electric cooling fans only come on when air conditioner is on.


Hi, the relay for AC compressor/Horn are on the left as you look at the car from the front. in the middle are Blower/Hi/Low and On the right,Engine Fan High Engine Fan Low. You may have more or less relaysand they may not be in order.

They are located in the Power Distribution Centre under the hood up near the wipers on the left. The fuses and breakers are on top and the relays are on the bottom.

Find the horn relay because its reasy to honk the horn while you pull the relay that completes the circuit. The one that is dissconnected and the horn wont blow is a good relay. Check the power rating in Amps and switch with the fan relays. You can find the fan by unplugging the coolant temp sensor. This will make the fan run all the time on High Speed (a good temporary fix for traffic jam overheating) and unplugging relays untill the fan stops running

Good Luck.

Apr 13, 2010 | 1993 Toyota Corolla

1 Answer

Air conditioner fan wont work, i can hear compressor come on , but fan wont blow any air , i have checked all fuses, they seem to be fine


You have to check to see AT the fan if it is getting 12 volts with a multimeter.

If it only works on high, then it's your blower motor resistor that is bad.

If it does not work at all in any speed setting then it may be the blower motor itself OR the switch or relay.

Check them all one at a time for 12volts then it will tell you which one is at fault.

Mar 30, 2010 | 2002 Lincoln Town Car

1 Answer

The air conditioner is not blowing any air at all on any setting. A/c, heat, defrost etc..


check fuse and relays, if its good, have blower motor check, if the motor is good, check the fan speed switch itself

Sep 25, 2009 | 2006 Kia Spectra

1 Answer

98 v6 mustang is over heating its not the thermostate or fan


Several things ... best guess, in order:
1. (very likely) Radiator fan is not blowing (turn on car and a/conditioner.
When compressor kicks in, the radiator fan must blow). If it ims not blowing,
the radiator fan motor may be burned out ($40).
2. Check / replace "cooling fan" fuse ($1) and / or "cooling fan" relay switch
($7).
3. Radiator clog (possible)
Hope this helps!

Sep 22, 2009 | 1998 Ford Mustang

2 Answers

Fan isnt working on 97 cavalier


Hi,if its a electric fan disconect the electric plug from the switch and bridge it then the fan should work if it dose then replace the switch.
hope this helps you.
George.

Jul 15, 2009 | 1997 Chevrolet Cavalier

1 Answer

2001 Hyundai Sonata 4cyl. Air conditioner worked irratically. Serpentine belt broke and was replaced. A/C started working again, then began only blowing cool air at higher speeds. Now does not blow cool...


Check the AC magnetic clutch relay, it may be sticking open. Bypass it (located under the hood) and see if the system cools down, if not you have other problems.

May 12, 2017 | Hyundai Sonata Cars & Trucks

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