Why won't the AC work after the engine warms sp?

Question 1

1helpful

1answer

1998 chevy s10 the ac will sometimes be cold at startup but then usually gets warm as engine gets warm

Is the AC compressor running when the air temperature starts to warms up?? I need to know if the large line from the AC compressor is getting cold, should be almost frosty?

Jun 17, 2016 • AC Cars & Trucks

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1answer

My ac wont turn off and only blows at one speed

faulty resistor won't make it blow warm air.
sounds like the climate control is bad.

Sep 04, 2012 • 2003 Honda Accord

0helpful

1answer

Cooling fans won,t come on

1 fan is for cooling the motor and the other fan comes on when the ac is turned on or its very warm outside it 2 stage

Nov 08, 2017 • Cars & Trucks

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2answers

Air conditiner cools on right side but not on left side

It can be issue with blend door actuator or vacuum leak or loose vacuum hose connection.
I suggest you few help links.Click the link below and follow the troubleshooting.
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A/C Blows Warm? http://whoisbyme.blogspot.in/2012/06/2005-chrysler-pt-cruiser-ac-blows-warm.html

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A/C blows Cold From Defrost Vent Only? http://whoisbyme.blogspot.in/2012/06/2009-mercury-grand-marquis-ac-blows.html
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A/c Blows Warm on driverside? http://whatisbyme.blogspot.in/2012/06/2007-kia-spectra-ac-blows-warm.html

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A/C compressor clutch won't engage http://schematicsdiagram.blogspot.in/2012/04/2000-cadillac-deville-ac-compressor.html

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Ford : A/C blows Warm? http://whoisbyme.blogspot.in/2012/06/2007-ford-freestyle-ac-blows-warm.html

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Thanks.

Jun 26, 2012 • 2005 Ford Five Hundred

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1answer

What's the problem with my AC conditionor? I have a 2003 Acura MDX. The 1st time I start my car (in a day) the ac is working fine. After driving the car and parking it for 5 min (while the engine is...

Just a thought: If your car has 2 electric fans under the hood one of them runs anytime your AC is on. Make sure one of them is running if you have 2. When your engine warms up both will come on. Check when the engine is cold to see if 1 fan comes on when you turn the AC on. Another thing which has happened to me. I had a bad AC relay after running a while it would get very hot when AC seems to quit working try feeling the AC relay if it is a lot hotter than the other relay that could be a problem. One more thought To add Freon the car has to be running and the AC on.

Jun 03, 2017 • 2003 Acura MDX

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1answer

How did you know when the cooling fans are not working

You may have one conventional belt-driven fan with a thermal clutch and the other electric or, both could be electric on your car.
The cooling fan that operates during non-AC operation (just a running engine) if electric, will be controlled by a thermal switch in the lower radiator tank and may not turn on at all unless the engine is warmed up. The belt-driven fan should be turning at some speed all the time if the engine is running and at much higher speed with a hot engine.
The fan that cools mostly when the AC is operating won't run under normal operation but may turn on in hot weather (or when the engine is under heavier loads) even without the AC operating.
Checking them would require having a warmed-up engine and the AC turned on. Both fans regardless of type should be turning then.

Jun 03, 2011 • 2000 Mercury Cougar

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1answer

The air conditioning unit won't work. The lights behind the panel light up, and when I turn the air all the way to cold, you can hear a click like it wants to go on, but can't. Do you know how to...

Check the fuse block. Sounds like the compressor fuse is blown. Maybe a 32Amp. It's a biggie. Maybe looks like a black relay in the engine compartment on the left side along with an array of large fuses. You can check the fuse box inside the car as well, but those are controlling smaller items like lights. The big boys are in the engine compartment. Also check for loose wires around the AC compressor and make sure the belt is not broken or missing.

May 25, 2011 • 2004 Saab 9-3

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1answer

My mode selector does not respond like floor face mix defrost but it blows from defrost when in warm selection and face some when on cool its a manual control not dual climate control like some models...

You have lost engine vacuum to the AC controls switch.

Jul 21, 2017 • Oldsmobile Intrigue Cars & Trucks

3helpful

2answers

Camry ac not cooling

you will need the AC serviced with new gas\dryer and leak test, assuming you can hear the AC compressor turning on and off.
Not sure where you are, but in australia you must be licenced to work on AC, with big fines for releasing AC gas to the atmosphere.

The warm air comes from the engine heat not the AC so the warm being normal just means the fan works

May 06, 2010 • 2003 Toyota Camry

0helpful

1answer

AC stops running when engine warms up

most likely low on freon

May 22, 2009 • 2003 Honda Civic

Question 2

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Geo Master 20,706 Answers
Posted on Sep 05, 2015

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Nice double post for 1 problem A.C
why double post?
here read the answers on 1st post 1st.

http://www.fixya.com/cars/t25850105-need_ac_run_after_car_warms_up_15_20

full answered, too.

wana gue$$ or test. ? your call.

test 1, is blower blown, if not fix that 1st.
test 2,,, is the compression clutch engaged or not>????
that means the compressor shaft (behind clutch) spins at full speed. belt not slipping, sure.

What do need to do my won run after my car warms up...

fixya.com

What do need to do my won run after...

1 more comment
_-__-___-_ Sep 10, 2015

the first step is learn to use a voltmeter
what is voltage at the clutch as it drops.

12vdc to zero (the amp logic is doing its job)
or stays 12v (clutch failure)
or drops to like 6v (bad wiring or relay)
???????????
this is how you do electrics.
_-__-___-_ Sep 10, 2015

The amp (logic) drops the clutch for up to 8 valid reasons. if it did,!
then i find that out next. (at the amp)
ask. it's not hard, with a $10 volt meter anyone can,....with simple help.
Anonymous Sep 10, 2015

DEAD A/C has lots of causes.
Heater stuck on. (dampers wrong for many reasons)
blower went dead.
Compressor clutch drops for 8 reasons.
AMP logic did so for many reasons.
The amp saw icing in core.
the amp sees engine overheat.
the amp lost 12vdc power.
the relays are bad.
the fuses bad, loose or rusty.
the hi/low switch saw freon low and sent
0volts to the AMP ,then amp then (logic )
cuts the compressor NOW.

and more,,,
do you want to GUE$$ or TEST.
if you dont want to test get car serviced
if you do want to test, buy a voltmeter.
and we can proceed.
my guess, is you only want guessing.
right?
ok my wild useless guess
the A/C fan belt is loose and slips../

×

Answer 2

richie46

Geo Master 12,962 Answers
Posted on Sep 04, 2015

richie46

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Sounds like you have a thermal issue with either the relay or clutch where they open when it gets hot inside the engine compartment.

Make sure the heater is turned off temp wise (no hot water entering the heater core) and judge the temp coming out. If normal temperature then the heater or flap has nothing to do with the issue.

Answer 3

Stephen

Geo Master 21,873 Answers
Posted on Sep 04, 2015

Stephen

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You'll need someone to check the electrical circuits to make sure the compressor is working and then check the blend door to make sure the heater is not on.
If the compressor stops running it could be the compressor clutch or a relay.

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Why won't the AC work after the engine warms sp?

3 Answers

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richie46

Stephen

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Related Questions:

1998 chevy s10 the ac will sometimes be cold at startup but then usually gets warm as engine gets warm

My ac wont turn off and only blows at one speed

Cooling fans won,t come on

Air conditiner cools on right side but not on left side

What's the problem with my AC conditionor? I have a 2003 Acura MDX. The 1st time I start my car (in a day) the ac is working fine. After driving the car and parking it for 5 min (while the engine is...

How did you know when the cooling fans are not working

The air conditioning unit won't work. The lights behind the panel light up, and when I turn the air all the way to cold, you can hear a click like it wants to go on, but can't. Do you know how to...

My mode selector does not respond like floor face mix defrost but it blows from defrost when in warm selection and face some when on cool its a manual control not dual climate control like some models...

Camry ac not cooling

AC stops running when engine warms up

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1995 Prizm

1998 chevy s10 the ac will sometimes be cold at startup but then usually gets warm as engine gets warm

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Why won't the AC work after the engine warms sp?

3 Answers

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richie46

Stephen

Add Your Answer

Attachments: Added items

Related Questions:

1998 chevy s10 the ac will sometimes be cold at startup but then usually gets warm as engine gets warm

My ac wont turn off and only blows at one speed

Cooling fans won,t come on

Air conditiner cools on right side but not on left side

What's the problem with my AC conditionor? I have a 2003 Acura MDX. The 1st time I start my car (in a day) the ac is working fine. After driving the car and parking it for 5 min (while the engine is...

How did you know when the cooling fans are not working

The air conditioning unit won't work. The lights behind the panel light up, and when I turn the air all the way to cold, you can hear a click like it wants to go on, but can't. Do you know how to...

My mode selector does not respond like floor face mix defrost but it blows from defrost when in warm selection and face some when on cool its a manual control not dual climate control like some models...

Camry ac not cooling

AC stops running when engine warms up

Not finding what you are looking for?

1995 Prizm

1998 chevy s10 the ac will sometimes be cold at startup but then usually gets warm as engine gets warm

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