Question about Hyundai Motor 2003 Sonata

1 Answer

The AC clutch won't engage on my 2003 Hyundai Sonata SGX. It engages when i run a direct wire from the batter. I checked the voltage to the compressor through the wiring and it's about half a volt. Seems there is too much resistance in the circuit. Could it be some of the relays causing this condition?

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 64 Answers

As with any electrical diagnosis you always want to check fuses and relays, but it sounds like 1 of 2 things......... you ethier really low on freon, causing it to cut off the clutch to save the compressor from damage due to lack of oil, (the lack of freon would indicate a leak in the system) Or your clutch switch is bad. resistance of .5 is normal, check the voltage from the harness, should be around 11.45 volts with engine running, if it s not then check your fuses, or relay also look for shorts in the harness along the path to the relay. if your checking the switch itself resistance should be around .5 like said earlier, but check a refrence manual to be absolute. but im sure its low freon or bad clutch switch.

Posted on Mar 25, 2011

Testimonial: "Your advice is spot on. I'd compliment you as beig "the man" but you name is says it best...you're "the Guru!""

  • bunny_chay Mar 26, 2011

    Gud am sir I'll just invite you to our shop for further inspection of your car don't worry it's free of charge. You can contact us at 5715437. Hope to here fm you.

×

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

2003 Ford Windstar AC is not working. It only blows out hot air. The blend door act. works properly(We have already tested it). There are properly freon in the Vehicle. We are at a lost. Please help


Can you tell if compressor clutch is engaged? If clutch isn't engaged only the belt pulley will be moving and the compressor clutch is not engaged. If not engaged, no ac.

Can you check for applicable hvac codes? To check codes, your-self, at the least, you need an obd2 code reader, that will check manufacturer specific codes as well as po.

I haven't looked at your wiring, you could probably check voltage and ground for compressor, hvac on.6158ef87-8677-4b29-952a-e287698970b5.jpg
In the diagram, you see applicable fuses--clutch relay-- the top wire at ac clutch is voltage--black wire is ground.

Jun 22, 2016 | 2003 Ford Windstar

1 Answer

Now that I've located the pressure switch for the air conditioner compressor on a 1999 Honda Odyssey I would like to know what wires would I jump to each other so that I can put freon in it


Kelly,Trouble shooting forum links below, the 3rd video show which contacts to cross to get AC clutch to engage.
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
Honda Odyssey not working
Compressor Clutch won engage Honda Tech
Troubleshooting AC unit Honda Odyssey 2003

May 02, 2016 | Honda Cars & Trucks

1 Answer

Compressor isnt turning at all dont know if i need new one or if i need new clutch how can i tell


The pulley on the compressor is always running when your engine is running, but the only time
it compresses the freon is when the clutch engages, if the compressor's pulley was not turning,
it would have already snapped a fan belt or your serpentine belt. voltage runs from your fuse box
thru your air condition switch on your dashboard to a low pressure switch that is located at the
accumulator a long cylinder,close to the firewall under the hood or close to the condensor, front
of the car. the switch detects freon pressure in the accumulator, if there is freon pressure, the switch
will stay closed and allow voltage to go to the compressor clutch to engage it and compress the freon,
if there is no freon pressure the switch will open, and there will be no voltage to air compressor, its a
saftey switch to keep your compressor from getting damaged.its possible that the switch could be bad
it may not have voltage at the switch, or it may be open because there is insufficient freon pressure.
check and make sure there is freon in the system.check for voltage at the low pressure switch if you have freon in your system and voltage at the pressure switch, set your ac on high, pull the molex off
the switch, and jump it out with a jumper wire, if the clutch engages and your car starts to cool, just
replace the switch. if the clutch engages but does not cool, then your ac system has some blockage
in the lines. if the clutch does not engage at all then it would be the compressor clutch. good luck!

Aug 03, 2011 | Buick Century Cars & Trucks

5 Answers

My ac compressor on my dodge 2500 want engauge?


This could be a few things. The freon could be low, one of the switches (high or low pressure) could be bad, or you could have a bad compressor clutch. You can test the clutch by checking for battery voltage and ground at the two pin connector with the A/C on if you have both power and ground, then the clutch is bad. You really should start by hooking up pressure gauges to the A/C ports to check the pressures, and these vary depending on ambient temperature and whether the A/C compressor is engaged or not. I am willing to bet that the freon is low though and may be just as simple as recharging the system.
Hope this helps. Good luck!

Apr 09, 2011 | 2006 Dodge Ram 2500

1 Answer

I replaced an AC clutch. I tested it with lead wires, it engages. When I plug it in with the AC on it will not engage. I have 13 volts to the plug with AC on. what would keep the clutch from engaging if I...


Hi

Here to understand why it’s not engaging first check the electric system, fuses, circuit breaker, and connection to the clutch assembly. Chances are your refrigerant level is low and the low pressure cut out switch is preventing the clutch from engaging in order to protect the compressor. You can jump across the terminals at the overload fuse to check operation of the clutch but only for a short period of time in case your system is low on oil. Evacuate and recharge the system to resolve the issue.

Let us know if you want to know something else accept the suggestion.
Thanks for contacting fixya.com

May 26, 2010 | Ford Mustang Cars & Trucks

1 Answer

Compressor clutch wont engage. sometimes on sometimes off. now just off


Trace the clutch wires from the compressor clutch to the nearest plug that you can disconnect. With the engine running, and the AC set to max, check to see if the clutch is engaged. If not, unplug the clutch wires and check the voltage going to the clutch. If the voltage is around 12 volts or more, then your clutch is shot and you will have to replace the clutch and compressor (sold as one unit). If the voltage is low or zero, then your AC is not calling for the compressor to run...a pressure or temperature sensor in your AC is out. Hope this helps.

May 19, 2010 | 1991 Pontiac Trans Sport

1 Answer

AC blowinghot air


Locate wires coming from compressor clutch and trace to nearest plug that you can unplug. Turn on A/C to max cooling. If clutch not engaged (center of compressor drive pulley not spinning with pulley), unplug compressor clutch wires and use multimeter to check voltage going to compressor clutch. If voltage is around 12 volts or more, then clutch should be engaged when plugged in. Plug clutch wires back in (with motor still running and ac set to max). If clutch still not engaged, then clutch definitely bad because 12V signal should engage it.

May 08, 2010 | 2002 Lincoln LS

2 Answers

AC Compressor not engaging on 2000 Chevy Impala. Fuses and AC relay okay. No power at compressor. Need wiring diagram. Also need to know if compressor requires 12v for operation. If not what should voltage...


When your R-134a runs too low it will NOT engage the compressor. You need to refill your a/c system before the clutch will engage, I also suggest finding the leak.

Apr 20, 2010 | 2000 Chevrolet Impala

1 Answer

A/C won't turn the comp on,2003 toyota 4runner, Freon is full


try running the a/c button on and see if the ac clutch is engaged if its not engaging then you must be having an electrical supply problem that powers up the ac clutch/ check the ac clutch condition it must have been fried...

Apr 05, 2010 | 2003 Toyota 4Runner

Not finding what you are looking for?
Hyundai Motor 2003 Sonata Logo

1,006 people viewed this question

Ask a Question

Usually answered in minutes!

Top Hyundai Experts

yadayada
yadayada

Level 3 Expert

75797 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22114 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8152 Answers

Are you a Hyundai Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...