Question about 2000 Dodge Neon

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Air conditioner cools for about 5 minutes after turn on and then stops cooling. Once system is turned off for a while it will start to cool again but stop cooling in about 3 to 4 minutes. The hotter it is the shorter the cooling time

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Hey you need only to service your ac system. have mechanic replace the exspantion valve ,dryer or accumalator.

Posted on Jul 26, 2008

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Low gas...the unit is freezing up.

Posted on Jul 24, 2008

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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

1 Answer

Check code engine po171


I'd be more concerned at looking into the fact that it takes a while to cool off in order to start up again. P0171/174 codes mean a lean condition. I'd suspect that you may have a problem with Vapor lock on the one bank, which is causing air to form in the fuel rail on that side. Since air compresses, the fuel pressure doesn't necessarily come up enough to restart the engine until the fuel has cooled down enough to stop boiling. Did this start happening once the weather in your area started getting warmer?

Apr 22, 2014 | 2005 Chevrolet Uplander

1 Answer

My ac is acting funky. my ac will blow cold air as im moving. once i stop and idle for longer than 3 or 4 minutes, something will kick on and then it will start to blow hot air. as this happens, my car...


Start by checking to make sure that the a/c condensor and radiator is not full off debris. If the condensor and radiator were full of debris it will limit the air flow from the engine cooling fan which in tern will cause a high discharge pressure on the discharge on the a/c causing poor or no cooling at idle and could also cause vehicle to overheat. Check and make sure that the cooling fan as well as the condensor fan are coming on together when the a/c is turned on if equipped with 2 fans.

Sep 12, 2013 | 2004 Chevrolet Cavalier

1 Answer

A/C system cooling deteriorates over time


Had a similar thing happen to me, recharged the system and have not had it happen since, note that you should make sure you get a recharger with a long hose, the recharge port is low behind the radiator. It occurred on mine at the beginning of summer.

Jul 19, 2013 | 2008 Buick Enclave

1 Answer

Air conditioner damper


Could be a blend door problem under the dash.

Jun 17, 2013 | 1998 Jeep Grand Cherokee

1 Answer

Airconditioning stops working after 1 to 1 1/2 hours and air cools down. what causes this?


Very possible.
Have you checked the cabin air filter ?
Is water dripping from the bottom of the truck when the ac is on ?

Jul 03, 2012 | Chevrolet Cars & Trucks

1 Answer

Why does the car start to over haet when i have the air conditioning on, once i turn off the ac the temperature goes back to normal


YOUR AIR CONDITIONER PUT LOAD ON ENGINE CHECK TO MAKE SURE RADIATOR COOLING FAN RUNNING BECAUSE IT HELPS TO KEEP THE ENGINE COOL AND AC CONDENSOR COOL FAN NEED TO BE RUNNING IF NOT CHECK COOLING FAN FUSE OR RELAY.

Aug 29, 2011 | 1998 Honda Civic

1 Answer

How do you bleed air from the cooling system on a 1995 pontiac grand am gt 2.3


A good way to do this, is while the engine is cool. I say again, COOL.

Take the radiator cap off, and start the engine, slowly pour coolant into the radiator until it stops going down. look for air bubbles, once the air bubbles stopped, it should be good to go.

May 02, 2011 | 1995 Pontiac Grand Am

1 Answer

I have a 2002 Dodge Ram Quad Cab 4x4. The a/c runs great as long as the truck is moving, but as soon as you come to a stop it starts blowing warm air. Please help.


Generally if the a/c works fine at highway speeds but kicks out or slowly begins to blow warmer and warmer air as the vehicle is driven at slow speeds or is stopped the a/c condensor cooling fan is usually at fault. At highway speeds there is enough air being forced through the radiator, condenser, and oil coolers to keep everything working and cool but when the vehicle is moving slowly or is parked the electric and mechanical cooling fans have to be working to pull enough air through to keep things working. If the cooling fan isn't working or can't pull enough air through the a/c condensor the system will kick out once the internal pressure reaches a certain point. Once the vehicle is moving again the system can get rid of the heat that it has gathered from the passenger cabin, the pressure drops back to normal and the system cools again. I would start by looking for a blown cooling fan fuse in the fuse panel under the hood. Usually they are 25 amps or larger and run only the cooling fan.

Jun 14, 2010 | 2004 Dodge Ram 1500

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