Lincoln

Lincoln Repair Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

2007 Lincoln Navigator air conditioner pressure switch

Customer Question
2007 Lincoln Navigator air...

2007 Lincoln Navigator air conditioner pressure switch location or ways to trouble shoot why A/C doesn’t blow cold air.

Mechanic's Assistant: Have you checked the coolant level? Have you checked for a leak in the radiator?

Yes

Mechanic's Assistant: Are you fixing your Navigator yourself? What have you tried so far?

Yes. Put coolant in and have pulled the fuse

Mechanic's Assistant: Anything else you want the mechanic to know before I connect you?

Brought pressure back to normal range on system

Submitted: 4 months ago.Category: Lincoln
Show More
Show Less
Ask Your Own Lincoln Question
Answered in 16 minutes by:
3/23/2018
Lincoln Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 4 months ago
Chad Farhat
Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems
Category: Lincoln
Satisfied Customers: 5,652
Experience: Owner at Carolina Auto Service & Sales , 20 years Experience in Foreign & Domestic vehicles
Verified

Hi, I'm Chad. Welcome to JustAnswer. I'm reviewing your question and I will be posting your reply ASAP.

Ask Your Own Lincoln Question
Customer reply replied 4 months ago
Need to know the location of the pressure switch or other ways to fix A/C system on 2007 Lincoln Navigator
Lincoln Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 4 months ago

click on link to view pdf file for location of sensors

and read below

2007 Lincoln Truck Navigator 2WD

V8-5.4L

Air Conditioning (A/C) High Pressure Switch

  • Vehicle
  • Sensors and Switches
  • Sensors and Switches - HVAC
  • Refrigerant Pressure Sensor / Switch
  • Description and Operation
  • Components
  • Air Conditioning (A/C) High Pressure Switch

Air Conditioning (A/C) High Pressure Switch

AIR CONDITIONING (A/C) HIGH PRESSURE SWITCH

The A/C high pressure switch is used for additional A/C system pressure control. The A/C high pressure switch is either dual function for multiple speed, relay controlled electric fan applications, or single function for all others.

For refrigerant containment control, the normally closed high pressure contacts open at a predetermined A/C pressure. This results in the A/C turning off, preventing the A/C pressure from rising to a level that would open the A/C high pressure relief valve.

For fan control, the normally open medium pressure contacts close at a predetermined A/C pressure. This grounds the ACPSW circuit input to the PCM. The PCM then turns on the high speed fan to help reduce the pressure.

Ask Your Own Lincoln Question
Lincoln Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 4 months ago

2007 Lincoln Truck Navigator 2WD

V8-5.4L

Air Conditioning (A/C) Cycling Switch

  • Vehicle
  • Sensors and Switches
  • Sensors and Switches - HVAC
  • Refrigerant Pressure Sensor / Switch
  • Description and Operation
  • Components
  • Air Conditioning (A/C) Cycling Switch

Air Conditioning (A/C) Cycling Switch

AIR CONDITIONING (A/C) CYCLING SWITCH

The A/C cycling switch may be wired to either the ACCS or ACPSW PCM input. When the A/C cycling switch opens, the PCM turns off the A/C clutch. For information on the specific function of the A/C cycling switch, refer to Heating and Air Conditioning, Climate Control System. Also, refer to the applicable Vehicle/Diagrams for vehicle specific wiring.

If the ACCS signal is not received by the PCM, the PCM circuit will not allow the A/C to operate.

Some applications do not have a dedicated (separate) input to the PCM indicating that A/C is requested. This information is received by the PCM through the communication link.

Ask Your Own Lincoln Question
Lincoln Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 4 months ago

2007 Lincoln Truck Navigator 2WD

V8-5.4L

Air Conditioning

  • Vehicle
  • Heating and Air Conditioning
  • Description and Operation
  • Components
  • Air Conditioning

Air Conditioning

AIR CONDITIONING

The air conditioning system components are the following:
- A/C compressor
- A/C condenser core
- A/C evaporator core
- Receiver/drier cartridge
- Connecting refrigerant lines
- Thermostatic expansion valve
- Evaporator discharge air temperature sensor
- A/C high-pressure cutoff switch
- Low charge protection switch
- A/C compressor pressure relief valve

The refrigerant system incorporates an A/C compressor controlled by the powertrain control module (PCM) through an A/C clutch relay.

The A/C compressor clutch will only be engaged by the PCM if all of the following conditions are met:
- The climate control assembly is set to a mode which provides an A/C request to the PCM.
- The evaporator discharge air temperature sensor is reading a temperature above 3°C(37°F).

- The A/C pressure transducer is not reading an excessively high or excessively low pressure in the refrigerant system.
- The A/C compressor relay is switched to the CLOSED position by the PCM.
- The engine coolant temperature is not excessively high.
- The PCM has not detected a wide open throttle (WOT) condition.

Refer to Heating and Air Conditioning for operating specifications.

An A/C compressor pressure relief valve is installed in the A/C compressor to protect the refrigerant system against excessively high refrigerant pressure.

Refrigerant flow into the evaporator core is metered by a thermostatic expansion valve.

Ask Your Own Lincoln Question
Customer reply replied 4 months ago
Relist: Answer quality.
Not helping. Not answering question.
Lincoln Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 4 months ago

Testing needed ,Click on link to view pdf file to help you troubleshoot ac

also the complete wiring circuit ,all fuses needs check on that circuit

Please Take a Second and Click the Stars at the Top of Your Screen To Rate Me , So I May receive My my Credit , A 5 Stars Rating is Much Appreciated

You are very welcome :)

Please Read Below How to Get Back in touch with Me

Follow Up Questions are Included in The Price of Your Question ,So Feel Free To Ask Me.

Please Keep in Mind that when you Rate Me , it Does Not End our Conversation.

You Can Always Come Back to this Conversation and Ask Me any Follow up Question you May have on this Issue

(You can Copy this Link Page & Paste it in your Browser when Ready and it will Open up our Conversation Again)

or there should be a Tab on your Screen to Add me As Your Favorite Expert

I'm Online Daily from 7 Am Till Late Eastern Time Zone

Thank You?Chad Farhat?ASE Certified Technician

Ask Your Own Lincoln Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a lincoln mechanicLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Chad Farhat Your Own Question
Chad Farhat
Chad Farhat
Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems
Category: Lincoln
Satisfied Customers: 5,652
5,652 Satisfied Customers
Experience: Owner at Carolina Auto Service & Sales , 20 years Experience in Foreign & Domestic vehicles

Chad Farhat is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

AlvinC answered a question about my Ford truck that only someone with an in-depth knowledge of his subject would have known what was going on.

Rich DUSA

Because of your expertise, you armed me with enough ammunition to win the battle with the dealer. They are installing a fuel filter and fuel pump at no charge to me.

MollyUSA

I needed help with my car on Saturday morning....got a response in 5 minutes, and it was the perfect solution. Thanks again to your service.

Jason V.Kirkland, WA

I do know, after going though this with JustAnswer, that I can somewhat trust my mechanic but I will always contact you prior to going there.

BRNew Jersey

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

< Previous | Next >

Meet the Experts:

Chris (aka- Moose)

Chris (aka- Moose)

Technician

2,392 satisfied customers

16 years experience with Lincoln

Shawn

Shawn

Technician

360 satisfied customers

16 years in the Automotive Industry

Ron Z.

Ron Z.

- Lincoln Tech -

215 satisfied customers

18+yrs experience. State Inspector and Lincoln Diagnostics

John Mc

John Mc

Lincoln Technician

207 satisfied customers

19 years Ford Lincoln Mercury experience

Tim Mohr

Tim Mohr

ASE MASTER TECH

197 satisfied customers

30 YEARS EXPERIENCE, FORIEGN AND DOMESTIC, GAS AND DIESEL

George H.

George H.

ASE Certified Technician

195 satisfied customers

15+Years of service as a Master Technician

Don - Mo Lurch

Don - Mo Lurch

Mechanic

147 satisfied customers

Line, Electronics, Driveline for over 30 years

< Previous | Next >

Related Lincoln Questions
My heat is not working, Yes I check it and it's good, Avatar
My heat is not working JA: Have you checked the coolant level? Has there been any leaking from the hoses? Customer: Yes I check it and it's good JA: What is the model/year of your Lincoln? Customer: A… read more
Ron
Ron
Automotive Tech
Vocational, Technical or Trade Scho
36,874 satisfied customers
Blows hot air when turned on. It's fine. 2007 MKZ lincoln.
Blows hot air when turned on JA: Have you checked the coolant level? Have you checked the hoses for leaks? Customer: Yes it's fine JA: What is the model/year of your Lincoln? Customer: Yes JA: What ye… read more
A. Penland
A. Penland
Ford Senior Master Technician
Vocational, Technical or Trade School
6,957 satisfied customers
In, 2004 lincoln aviator blows hot air from front vents rear
2004 lincoln aviator blows hot air from front vents rear overhead vents work fine blowing cool air … read more
davehop
davehop
Diagnostic Technician
Ford Master Technician. Hyundai Master Technician
1,414 satisfied customers
2010 Lincoln Navigator with dual climate control blowing hot
2010 Lincoln Navigator with dual climate control blowing hot air on passenger side when a/c is on … read more
Ron Z.
Ron Z.
- Lincoln Tech -
Vocational, Technical or Trade Scho
215 satisfied customers
Lincoln Town Car: I have a 1994 Lincoln Town car that is blowing
I have a 1994 Lincoln Town car that is blowing hot air with the climate control set to Max A/C and 60 degrees. The A/C clutch never engages and they system is not low on coolant.… read more
Mike S.
Mike S.
Vocational, Technical or Trade Scho
7,852 satisfied customers
Lincoln MKX: hello, I have a 2007 lincoln mkx. My heater works
hello, I have a 2007 lincoln mkx. My heater works sometimes and sometimes it blows cold air. Something about a switch or flap not working properly. Someone said I would need to take out the dashboard … read more
Ron
Ron
Automotive Tech
Vocational, Technical or Trade Scho
36,874 satisfied customers
Lincoln mkz: I have a 2007 Lincoln MKZ, the a/c is blowing
I have a 2007 Lincoln MKZ, the a/c is blowing cold for around 30 seconds, then not cold for around 30 seconds. Freon has been checked and filled to capacity of 21oz. A/C pressures seem normal, 40 on l… read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
2,392 satisfied customers
Lincoln Navigator L Luxury: Steve this my dilema I have a 1999
Steve this my dilema I have a 1999 Lincoln Navigator with about 170.00 last week wife was driving and the Lincoln just cut off, she was able to started back up right away after coast to shoulder, then… read more
Steve
Steve
Ford tech Specializing in electronics
Vocational, Technical or Trade School
6,741 satisfied customers
Lincoln LS: a/c blows cold. Once it reaches set temp it switches
a/c blows cold. Once it reaches set temp it switches to heat and stays hot. Can feel both hot and cold air in center ducts blowing. 01 lincoln LS… read more
Richard
Richard
Vocational, Technical or Trade Scho
15,712 satisfied customers
Lincoln Navigator: I have a 2001 Lincoln Navigator. My a/c
I have a 2001 Lincoln Navigator. My a/c works but I have no heat. I checked the blend door and it works fine. When I switch it to heat and adjust the temperature control the digital temperature indica… read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
2,392 satisfied customers
My 2004 Lincoln LS has started having ac problems. The ac
My 2004 Lincoln LS has started having ac problems. The ac blows warm air unless you are traveling at speeds say 35+ mph it will cool but sitting still or stop and go traffic it does not cool. It seems… read more
HDGENE
HDGENE
6,369 satisfied customers
2007 Lincoln MKZ: with 92,000 miles..compressor..passenger..cold air
2007 Lincoln MKZ with 92,000 miles: Air Conditioner noise that service center states is compressor and condensor. Is this a common issue with these vehicles. When cycling on "auto setting" grinding no… read more
Kenny Z.
Kenny Z.
Ford Senior Master Technician
High School or GED
5,896 satisfied customers
2001 lincoln navigator: now where are my a/c relay and fuses..clutch
2001 lincoln navigator i whant to now where are my a/c relay and fuses. my ac clutch doesnt work… read more
Ron
Ron
Automotive Tech
Vocational, Technical or Trade Scho
36,874 satisfied customers
Lincoln Navigator: blowing cold air..the Freon is low..high pressure
The A/C on my friends Lincoln Navigator is not blowing cold air. I think the Freon is low. But when I went to check the pressure I could only find the high pressure line. Is this the only line on this… read more
Ron
Ron
Automotive Tech
Vocational, Technical or Trade Scho
36,874 satisfied customers
1999 Lincoln Navigator: Heater works..front control..blowing cold
Got an A/C issue with my 1999 Lincoln Navigator. Heater works fine, A/C in the rear works fine but the A/C in the front control panel is not blowing cold. System is properly charged with R134A. No vac… read more
NicksSticks
NicksSticks
Vocational, Technical or Trade Scho
1,419 satisfied customers
2007 lincoln navigator: the few moments its on it does blow cold air
I have a 2007 lincoln navigator. When I turn on the A/C it starts to make a screaching noise and I then turn it off. For the few moments its on it does blow cold air. When I get out of the car I smell… read more
CTFordTech
CTFordTech
Auto Technician
Vocational, Technical or Trade Scho
4,894 satisfied customers
2002 Lincoln LS: blow..cold air) when I have the air conditioner on
Why does my 2002 Lincoln LS blow out heat (and I mean heat - not just not cold air) when I have the air conditioner on?… read more
Ron
Ron
Automotive Tech
Vocational, Technical or Trade Scho
36,874 satisfied customers
My 2003 Lincoln Navigator's climate control system seems to
My 2003 Lincoln Navigator's climate control system seems to be malfunctioning. On a cool day (40-60 degrees) I sometimes have to set the temperature control setting to 74-75 degrees to get warm air to… read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
5,170 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x