Mitsubishi

Mitsubishi Repair Problems? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Mitsubishi

I have a Mitsubishi endeavor 2006 and ac is not working

Customer Question
i have a Mitsubishi endeavor 2006 and ac is not working
Submitted: 2 years ago.Category: Mitsubishi
Ask Your Own Mitsubishi Question
Customer reply replied 2 years ago
a/c compressor is kicking in, air is blowing, it is just hot. I have put a vacuum on the system for about an hour and a half, and just now loaded some Freon. I used two gauges just to confirm the other was correct. after loading first can of Freon, gauge never moved from 0. tried the other gauge and same thing, 0psi. Compressor clutch is on all this time. I emptied that can, 16oz I believe, started the other can, and nothing, gauges stayed at 0 and air is still hot inside(after 2 cans have been loaded)
Answered in 30 minutes by:
6/3/2015
Mitsubishi Mechanic: Doug, ASE Certified Technician replied 2 years ago
Doug
Doug, ASE Certified Technician
Category: Mitsubishi
Satisfied Customers: 8,635
Experience: Mitsubishi employed and Factory trained ASE certified technician
Verified
Hi,
Do you have actual ac gauges you can use to check low and high side pressures?
Ask Your Own Mitsubishi Question
Customer reply replied 2 years ago
yes sir
Mitsubishi Mechanic: Doug, ASE Certified Technician replied 2 years ago
Great. I'm sorry for the delay.
When hooked up with the engine off, what readings do you get on both sides?
What happens to the readings exactly when the clutch engages?
Ask Your Own Mitsubishi Question
Customer reply replied 2 years ago
I will check right now
Mitsubishi Mechanic: Doug, ASE Certified Technician replied 2 years ago
Thanks
Ask Your Own Mitsubishi Question
Customer reply replied 2 years ago
ok, with car OFF, low side is 95psi and high is 115psi.....with car on, low drops to 4psi and high goes to 145psi
Customer reply replied 2 years ago
low side on OFF position right now is 25 psi
Mitsubishi Mechanic: Doug, ASE Certified Technician replied 2 years ago
Thanks.... those are pretty interesting readings. Static we would expect to see 70-100 psi depending on ambient etc... seeing over 100 is usually an indication of over charge.
However when you turn the AC on the numbers appear just the opposite... like there is not enough in there.
This system only holds around 500 grams... when you charged the system I know you mentioned two cans; you didn't put two full cans in for sure did you? (That would be about 200% charged)
When you charged the system, was it vacuumed first to get the moisture out?
Ask Your Own Mitsubishi Question
Customer reply replied 2 years ago
Yes system was vacuumed, and to my understanding, the manual said system takes in 20oz of freon so that's the measurements I went by, I tried to get as close as I could to 20 oz....each bottle contained 12oz not 16 sorry
Mitsubishi Mechanic: Doug, ASE Certified Technician replied 2 years ago
That will be a lot better, let me check the spec with Mitsubishi right quick.
Ask Your Own Mitsubishi Question
Customer reply replied 2 years ago
OK thanks
Mitsubishi Mechanic: Doug, ASE Certified Technician replied 2 years ago
Yeah you're in pretty good shape there... exact spec is 560-600, right where you were aiming (19.7-21.1 ounces).
When the AC is running, place your hand along the pipes... from the compressor to the fire wall, compressor to condenser, condenser to firewall etc...and if possible and you have a infrared temperature gun shoot at the condenser and drier. Do you notice any cool spots in the system?
Ask Your Own Mitsubishi Question
Customer reply replied 2 years ago
OK, I touched all pipes and all were somewhat cool except for the lone going to condensor(passenger side) that one was really hot
Customer reply replied 2 years ago
And I don't have an infraded camera sorry
Mitsubishi Mechanic: Doug, ASE Certified Technician replied 2 years ago
No problem at all.
So you are seeing temperature drop but not substantial differential anywhere (no position where its suddenly very cold). The hot line is normal.
I'm suspecting that either those cans may have had an issue (sometimes self service cans have more gunk than refrigerant in them) or possibly there is still excessive moisture in the system.
When you vacuumed the system, were you able to pull a solid 30inHg? When you unhooked the vacuum pump, did it retain full vacuum or did it drop off a percentage right away?
Ask Your Own Mitsubishi Question
Customer reply replied 2 years ago
Well i bought a big can of freon before doing this whole procedure and it did exactly the same thing , and I bought these other 2 small can for the same reason, I tought the first one was garbage, so I vacuumed for about 1.5 hrs , and yes I had roughly 30in and yes after shutting pump off I left it with valves closed for about 1.5 hrs and it maintained that vacuum
Mitsubishi Mechanic: Doug, ASE Certified Technician replied 2 years ago
Thanks.
Without any other abnormalities that is a pretty tough one to consider. The only thing really left would be a weak compressor or a slightly sticking open expansion valve. The compressors are pretty common to fail, the expansion valves are not.
Is there anything else noteworthy leading up to this situation? Any particular event before the problem occurred, or any unusual symptoms like strange noises (seemingly unrelated) leading up to the day the AC stopped?
Also, when you vacuumed the system was it already empty or did you have refrigerant in it? I assume you didn't have any way to scale the removed refrigerant if there was some?
Ask Your Own Mitsubishi Question
Customer reply replied 2 years ago
The air just gradually got hotter ,nothing from one day to another. The compressor did seem to have relieved some pressure the first time I was putting some freon, somewhat like a pressure relief valve does. It did it for maybe 3 minutes and then stopped. But that seemed to have helped, because air felt a tiny bit cooler after that happened and I loaded some new freon. When i vacuumed there was a small amount of freon and no I was unable to retain anywere
Mitsubishi Mechanic: Doug, ASE Certified Technician replied 2 years ago
Thanks.
I'm not a big fan of coincidences or two things happening at once etc. And considering that the refrigerant amount that exited was small, I would have to think the primary failure was the loss of refrigerant. I would find it unlikely to expect that happened -and- there was another issue etc.
And keeping that in mind... it puts us back to the refrigerant. Were these straight R134A cans, no additives listed on the can (like "10 ounces R134, 2 ounces leak stopper and dye" etc)?
Ask Your Own Mitsubishi Question
Customer reply replied 2 years ago
No, it was straight 134,no additives at all
Mitsubishi Mechanic: Doug, ASE Certified Technician replied 2 years ago
That is just really weird.
So assuming everything is normal on the car... your pressures are pretty low when operating. We would expect to see at the last 180+ high side pressures when running and you are well below that.
Since we have little to do from here apart from getting it on a proper recovery machine (so the exact amount can be monitored/removed etc), can we try shooting a little more out of that second can in there? My thinking being perhaps the first can was not full etc.
Ask Your Own Mitsubishi Question
Customer reply replied 2 years ago
OK, I will do that and get back with you
Mitsubishi Mechanic: Doug, ASE Certified Technician replied 2 years ago
Thanks.
Ask Your Own Mitsubishi Question
Customer reply replied 2 years ago
OK, just finished up and nothing. Gauge didn't move when compressor was on and air didn't get colder
Mitsubishi Mechanic: Doug, ASE Certified Technician replied 2 years ago
Very strange.
At this point I think what we need to do to really eliminate the variables is to get the system evacuated by machine so that a scaled charge can be performed. Without knowing 100% how close the charge is we really are stabbing blindly at it without having any other clues where we have looked into.
These systems do have issues with as little as 10-15% variance off of the prescribed charge amount... and I don't think we are lucky enough to have hit it on the mark, it is pretty hard to do.
While again we could speculate about things like a weak compressor or similar, I think you want to make sure 100% that the charge is dead on the money and what the pressures look like then. If you still have the same pressures, then I would only really expect a compressor at that point (low high side pressure, normal charge, no signs of blockage otherwise). Obviously if the pressures come up differently it would have other implications etc; if the system works then well then you would know the charge amount was just off etc.
Ask Your Own Mitsubishi Question
Customer reply replied 2 years ago
What's the reason I am not getting any read when clutch is on, on the low side?
Mitsubishi Mechanic: Doug, ASE Certified Technician replied 2 years ago
I thought you were seeing 4 psi range?
A low pressure like that would be either undercharge situation or a weak compressor. Both will give you low readings on both sides (considering you would expect 20-50 and 190-290, both your readings are low).
If you are actually seeing zero and not 4 psi, then you would expect a blockage. This doesn't sound like what you are experiencing though, as you are seeing some pressure... a blockage will either be solid and you will see 0 psi or even a vacuum -and- you will see high pressure on the high side, or a partial blockage that will give typical pressures (though slightly dependent on where the blockage is located in relation to the service ports) but you will have a very noticeable temperature differential (line getting significantly colder in a location other than the expansion valve).
Ask Your Own Mitsubishi Question
Ask Doug Your Own Question
Doug
Doug
Doug, ASE Certified Technician
Category: Mitsubishi
Satisfied Customers: 8,635
8,635 Satisfied Customers
Experience: Mitsubishi employed and Factory trained ASE certified technician

Doug 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:

I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry.

Stephanie PElm City, NC

used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future.

David L.Richmond, TX

9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much.

PhilMarysville, CA

Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible.

CharlesWalnut Creek, CA

As a single woman, I really appreciate an excellent and affordable opinion.
Thank you Geordie, I will not hesitate to contact justanswer in the future!

SueCharleston, WV

Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff.

JimCastleberry, FL

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

< Previous | Next >

Meet the Experts:

Doug

Doug

ASE Certified Technician

8,635 satisfied customers

Mitsubishi employed and Factory trained ASE certified technician

George H.

George H.

ASE Certified Technician

312 satisfied customers

ASE Master tech 15+ years

Tim Mohr

Tim Mohr

ase master

205 satisfied customers

30 yrs foriegn and domestic, gas and diesel

Jake

Jake

Automotive Technician

195 satisfied customers

Experienced collision repair technician, Pulaski Tech graduate and DSM hobbyist.

Chris (aka- Moose)

Chris (aka- Moose)

Technician

160 satisfied customers

16 years of experience

Mike Kelly

Mike Kelly

Mitsubishi Mechanic

104 satisfied customers

17 years experience as an auto mechanic, foreign and domestic. 5 years running my own repair business.

AMD

AMD

Master Technician

48 satisfied customers

L1 Advanced Level Diagnostics Specialist

< Previous | Next >

Related Mitsubishi Questions
2001 3.0 spyder oil leak, I replaced valve cover gasgets,
2001 3.0 spyder oil leak , I replaced valve cover gasgets , oil on outside of power steering hose , oil burning off rear exhaust manifold after long up hill pull and idling I cannot find source of lea… read more
Mechanic01
Mechanic01
1,645 satisfied customers
I have a 91 montero. The turn signals just quit working. I
I have a 91 montero. The turn signals just quit working. I suspect the flasher, so bought a new one, but can't find anything that looks like it under the dash.… read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
4,393 satisfied customers
Should I buy a brand new mitsubishi outlander SEL 2018. Is
Should I buy a brand new mitsubishi outlander SEL 2018. Is it an improved version of the car. I have heard there has been issues with reliability, but this one comes with a bumper to bumper warranty f… read more
Kavey
Kavey
86 satisfied customers
My check engine light is flashing for a time and then goes
My check engine light is flashing for a time and then goes solid then back to flashing. truck sounds ok except for a ticking sound when accelerating … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
2000 Montero sport limited. auto tranny with manual 4 x4.
2000 Montero sport limited. auto tranny with manual 4 x4. Can I tow on ground or do I need a dolley … read more
Mechanic01
Mechanic01
1,645 satisfied customers
I have a 1995 Mitsubishi 3000gt which has been in storage
I have a 1995 Mitsubishi 3000gt which has been in storage for two years. Old stereo system was changed prior to storage so I cannot enter security code in order to start car after replacing battery. H… read more
Chad Farhat
Chad Farhat
Owner
Associate Degree
4,393 satisfied customers
I am working on my daughter in laws 2004 Mitsubishi Endevor
Hi, I am working on my daughter in laws 2004 Mitsubishi Endevor AWD. I was working on trying to replace the driver side rear hub and the threads on the axle came off when we finally got the axle nut o… read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
M y car went in the garage to-day and they phoned to sat
m y car went in the garage to-day and they phoned to sat there was a problem, the light was on all the time … read more
vwtech0405
vwtech0405
VW Technician
Associate Degree
8,868 satisfied customers
On a 2007 Mitsubishi Grandis, I have a check engine coming
On a 2007 Mitsubishi Grandis, I have a check engine coming on for Nr. 4 cylinder. Have replaced the plug and the coil. Has 145 psi compression, and … read more
Cesar Jimenez
Cesar Jimenez
Owner/CEO
Vocational, Technical or Trade School
84 satisfied customers
Small vapor leak po456. I change the canister cap for fuel
I change the canister cap for fuel purger valve the neck for gas … read more
Peter Bagley
Peter Bagley
master technition
Vocational, Technical or Trade School
1,006 satisfied customers
03 eclipse gt... Car lost all throttle power while driving
03 eclipse gt... Car lost all throttle power while driving but the power came back after I stepped on the gas pedal a few times. The codes p0340 and p0335 popped up along with a misfire in cylinder 2 … read more
vwtech0405
vwtech0405
VW Technician
Associate Degree
8,868 satisfied customers
Doing the starter in my 01 MS 4WD a 3.0L. I got as far as
Hey Doug, doing the starter in my 01 MS 4WD a 3.0L. I got as far as completely disconnecting the starter, but it's stuck half way - won't go either way. The main gotcha on mine appears to be the*****a… read more
Chris (aka- Moose)
Chris (aka- Moose)
Technician
Vocational, Technical or Trade School
160 satisfied customers
Looking for the blower motor relay, and or what amp it is?
Looking for the blower motor relay, and or what amp it is? … read more
George H.
George H.
ASE Certified Technician
Associate Degree
312 satisfied customers
Service Engine Soon light came on, then went off on its own.
Service Engine Soon light came on, then went off on its own. But I need an inspection this month. Concerned it won't pass because the light was on for one day, a couple days ago. … read more
baddad1
baddad1
technician
High School or GED
5 satisfied customers
2007 Mitsubishi endeavor. After driving for a couple miles,
2007 Mitsubishi endeavor. After driving for a couple miles, after engine warms up. when transmission shifts to lower gear and rpms are around 1.5 - 2 with slight load on engine such as small hill the … read more
Matt
Matt
Engineer
Bachelor\u0027s Degree
5 satisfied customers
I have a 2004 Endeavour and I need to know where the
I have a 2004 Endeavour and I need to know where the resister is located so I can replace it … read more
Mechanic01
Mechanic01
1,645 satisfied customers
New clutch in and flywheel makes noise in neutrel with car
new clutch in and flywheel makes noise in neutrel with car running and pedle chatters a little … read more
Mechanic01
Mechanic01
1,645 satisfied customers
I am getting a warning that the transmission fluid is
I am getting a warning that the transmission fluid is overheating and to slow down. Not sure what this means … read more
Michael Solis
Michael Solis
363 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