Question about 1999 Nissan Altima

3 Answers

My A/C clutch stopped working. The clutch is OK because when I hotwire it, it engages. The electrical commard circuit is at fault. The button on the dash lights up, the two fuses look OK. I've changed the relay, but no improvement. A second relay, however, is marked "clutch", could this relay be for the A/C clutch? I'd like to know.

Posted by on

Ad

3 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 394 Answers

Hi,
Yes, the cycling is normal. It is running fine.

Posted on May 12, 2010

Testimonial: "Great help, much appreciated!"

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Nissan Master
  • 5,763 Answers

Yes, but your ac system contains switches, one low preasure switch to shut compressor down when freon is low, this is to avoid compressor damage,if low on freon the compressor will not turn on. the first thing to do is make sure the feron is full, you will need a teck to do this, i dont think you should atempt this, its high preasure you may cant hurt or damage your system if not done right.

Posted on May 11, 2010

Testimonial: "Your assessment was right on! Thanks for your help. I was able to put more freon into the system, now the clutch functions and the system is making cold air. I'm seeing that while at idle, both the clutch and the radiator fans cycle on and off, maybe at an interval of 45 seconds or so, while being driven I have a hunch that it is also cycling in this manner. Is this on and off cycling normal?"

Ad
  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 3,092 Answers

I would check freon pressure, if low it will stop a/c clutch from coming on.

Posted on May 11, 2010

  • Alexander Mimun
    Alexander Mimun May 12, 2010

    If cycling that much your a/c system is still low on freon. With a/c gauges low side should read about 30psi and high side about 175psi. at 1500 rpm.

×

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.
New users get 2 Free calls (no credit card required) and instant help on almost anything you can think of (from cars to computers, appliances, handyman, and even pets).
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

A/c clutch doesnt engage fan works no cold air had battery problems think i might blown a fuse


Check for a blown fuse ,if ok check for battery voltage at the A/C clutch if ok the clutch is faulty, if no voltage check both sides of the A/C switch if voltage ok the cable to the clutch is open circuit ,if no voltage to the switch, cable to the power supply open circuit, if voltage to only one side of switch, switch is at fault.

Aug 03, 2015 | Cars & Trucks

1 Answer

Engine quits when ac turned on compressor unplugged


Knowing make model and year would help. Most newer vehicles, 2000 and newer, will adjust the idle control up to compensate for the compressor engaging. Possible there is an issue in the idle air control valve or electrical circuit.

Mar 14, 2017 | 2003 Ford Focus

1 Answer

No electrical power to AC Compressor. The switch light comes on in car when AC power button is turned on.


  1. Check if air blows with the fan setting turned to high.
  2. Check that the radiator cooling fan engages when the A/C button is pressed.
  3. Locate the compressor.
  4. Turn on the A/C.
  5. Check if the compressor's clutch has been engaged.
  6. If the clutch engages, the fault is elsewhere.
  7. If the clutch does not engage, check for power to the clutch.
These steps might help find the problem.

Sep 16, 2013 | 1997 Ford Escort

1 Answer

Ac will blow warm air, the clutch does not engage. Could this be a compressor prob? Looked in the manual ...no trouble shooting ideas


Since you know that the clutch must engage in order for the compressor to operate, then there are most likely one of causes. The first is low or no freon in the system. The a/c system has a pressure sensor mounted in the low( return) side hose that prevents the clutch to engage if the freon is too low. The second would be the a/c fuse or relay faulty, preventing the clutch solenoid( a 12 volt electrically operated solenoid) from engaging. And the third would be that the clutch itself is bad because the solenoid wiring has broken. I suggest that first you locate the a/c clutch relay in the relay panel, remove the relay, carefully remove the plastic cover from the relay and reinstall the relay. The clutch should engage the compressor when you manually close the relay contact with your finger for one or two seconds. If the clutch does engage, your electrical circuit in ok and you are probably low on freon. A half of a can of r-134 in more that enough to operate the pressure switch. If it doesn't engage, check the a/c fuse or the clutch solenoid itself. Get back to me and let me know how things went. Dano

Jun 30, 2011 | 2001 Dodge Ram 1500 Truck 2WD

1 Answer

I have a 2008 escape and the air conditioner stopped working. The clutch will not engage and I put a volt meter on the plug and I get nothing. I checked the fuses, relay and diode all appear ok. Is there a...


The clutch will not engage if it is low on freon. It has a high pressure switch and a low pressure switch which keeps the power from the compressor so no damage will happen. Have the freon checked.

Mar 13, 2010 | 2008 Ford Escape

2 Answers

Need free A/C Heating electrical schematic for 1.8L '01 VW Beetle


try these websites car A/C repair www.directgardening fix &troubleshoot heating & A/C www.automedia.com if all fails stop by your local library and get your hands on a Haynes auto repair manual for your car.

Jun 07, 2009 | 2001 Volkswagen Beetle

2 Answers

Interment A/C clutch operation


Thats what it soulds like to me. The low pressure switch is what controls the clutch. Check to ensure you are topped off with refrigerant. If it is, get the low pressure switch replaced.

Jun 02, 2009 | 2001 Volkswagen Beetle

1 Answer

A/c stopped working,the clutch still engages, fan blows warm, found no fluid leaks


the air blend door inside the heating / cooling unit that sits under the dash is probably not moving. there is an electric motor and control unit that moves the air blend door (assuming you have the electric dial or push button digital controls. some of these vehicles have a valve that shuts off the antifreeze from cycling through the heater and if it remains open then you would get "not hot" but just warm air.

Apr 26, 2009 | 1999 Infiniti.5 QX4

Not finding what you are looking for?
1999 Nissan Altima Logo

684 people viewed this question

Ask a Question

Usually answered in minutes!

Top Nissan Experts

yadayada
yadayada

Level 3 Expert

76630 Answers

Phil Lovisek
Phil Lovisek

Level 3 Expert

726 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

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

Answer questions

Manuals & User Guides

Loading...