Toyota

Have Toyota Questions? Ask a Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Camry: The air conditioner on my 99 camry works intermittenly.

Customer Question
The air conditioner on my...
The air conditioner on my 99 camry works intermittenly. sometimes the AC light will blink. If I raise the rpms of the engine and turn the air conditioner on and off, I can get it to work. I replaced the magnetic clutch relay. no change Any ideas what the problem is?
Submitted: 2 years ago.Category: Toyota
Show More
Show Less
Ask Your Own Toyota Question
Answered in 14 hours by:
7/9/2015
Toyota Mechanic: Toyota Service, Toyota Expert replied 2 years ago
Toyota Service
Toyota Service, Toyota Expert
Category: Toyota
Satisfied Customers: 5,211
Experience: 30+ Yrs of auto experience, Award Winning Svc. Manager; Just Answer Customer's Choice Award Winner
Verified
Hello. Different expert here. When we have this problem in the shop, the Magnet clutch relay as described by my colleague above is usually the problem. However, in some instances, when replacement of the relay (you state you replaced it and nothing improved) does not cure the issue, the problem resides in a device called the Lock Sensor located on the compressor. The Lock Sensor does just what its name inplies. It detects if the compressor internal unit is locked up or not. Better put, the Lock sensor is basically a revolution sensor. It counts the RPM of the compressor and transmits that signel to the AC amplifier under the dash. As long as that rpm signal is within the specification, the AC amplifier allows a ground circuit to the AC Magnet Clutch relay. If the RPM signal is not at spec, the ground is removed, the compressor stops, and the AC amp causes the AC light to blink. The RPM /Lock sensor is there to kill power to the compressor if it locks up, which is a safety feature to stop the belt from smoking as the engine turns it on the locked up compressor. The remedy here is one of two paths. On this vehicle, there are 2 different AC compressors used. One you can easily replace trhe RPM sensor, the other is built in. To determine which unit you have, you need to take you 17 digit Vehicle Identification Number to your local Toyota dealer parts department. There, the parts person will call up your specific car on the computer. That will tell them which unit you have. Then purchase and have installed what they recommend. If you have any questions, please feel free to reply. If you are satisfied with my input on this request, a positive rating would be greatly appreciated. Thanks for choosing Just Answer.
Ask Your Own Toyota Question
Was this answer helpful?
Ask Toyota Service Your Own Question
Toyota Service
Toyota Service
Toyota Service, Toyota Expert
Category: Toyota
Satisfied Customers: 5,211
5,211 Satisfied Customers
Experience: 30+ Yrs of auto experience, Award Winning Svc. Manager; Just Answer Customer's Choice Award Winner

Toyota Service 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:

THANK YOU, THANK YOU, THANK YOU!! I've got my baby back. Tomorrow I will get a tank of high octane, remove the top, go for a long long ride and enjoy my car. THANK YOU!

JugheadUSA

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

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

Chris (aka-Moose)

Chris (aka-Moose)

Auto Technician

1,001 satisfied customers

16 years of experience

Marty

Marty

ASE Certified Technician

180 satisfied customers

ASE & Bosch Master Tech. 30 years experience.

Amedee

Amedee

Toyota Technician

1,229 satisfied customers

ASE certified tech advanced level specialist. Wisconsin certified emissions state inspector

Anthony

Anthony

ASE Certified Technician

401 satisfied customers

ASE Master Automobile Technician with over 20 years exp. in this field.

Richard

Richard

ASE Certified Technician

9 satisfied customers

Toyota tech. ASE Certified Technician

Skyvisions

Skyvisions

ASE Certified Technician

12,737 satisfied customers

Toyota Master Diagnostic

Genchi Genbutsu

Genchi Genbutsu

Toyota Master Technician

3,761 satisfied customers

Toyota Certified Master Diagnostic Technician, ASE Master Technician with L1 Advanced Engine

< Previous | Next >

Related Toyota Questions
toyota camry: engine and put the air conditioner..vibrating..park
Hi I have toyota camry 2002. I started the engine and put the air conditioner at max and suddenly the engine begun vibrating really bad. on every gear slightly less on N and park. Could yo tell me wha… read more
Toyota Service
Toyota Service
Toyota Expert
5,211 satisfied customers
I have a 1994 Toyota Camry LEX6 cylinder engine check engine
I have a 1994 Toyota Camry LEX6 cylinder engine check engine light came on the freeway and I lost power. Will start-and Idle but go dead when put in gear and if you try to accelerate fuel pressured Me… read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
Have a 1996 Toyota Camry V6 automatic. The check engine
have a 1996 Toyota Camry V6 automatic. The check engine light came on. Had it tested came up with code P0753. Had both shift solenoids replaced . Drove the car about 10 miles and the light came back o… read more
Todd M
Todd M
Owner
ASE Certification
1,770 satisfied customers
Noise from engine. Manual 146000. 149000. Camry solara. No
Noise from engine JA: How many miles are on the car? Is it an automatic or a manual transmission? Customer: Manual 146000 JA: What is the model/year of your Toyota? Customer: 149000 JA: What year is y… read more
baddad1
baddad1
technician
High School or GED
5 satisfied customers
2007 avalon xls, 77000 miles. air conditioner works fine
2007 avalon xls, 77000 miles. air conditioner works fine the … read more
Anthony P.
Anthony P.
high school
387 satisfied customers
We own a 2001 Toyota Camry. The check engine light is on and
We own a 2001 Toyota Camry. The check engine light is on and has a reading of PO420 which I know is the catalytic converter. We are needing to make an 800 mile round trip starting tomorrow. Will this … read more
baddad1
baddad1
technician
High School or GED
5 satisfied customers
I have an 07 camry 2.4 and the engine was replaced with a
I have an 07 camry 2.4 and the engine was replaced with a 2013. … read more
Peter Bagley
Peter Bagley
master technition
Vocational, Technical or Trade School
1,198 satisfied customers
2007 toyota camry xle engine light came on saying check vsc
2007 toyota camry xle engine light came on saying check vsc system … read more
baddad1
baddad1
technician
High School or GED
5 satisfied customers
2004 Sienna - rear air conditioner won't cool. Front works
2004 Sienna - rear air conditioner won't cool. Front works fine. … read more
Chris (aka-Moose)
Chris (aka-Moose)
Auto Technician
Vocational, Technical or Trade School
1,001 satisfied customers
1999 camry v6 3.0 engine surges at random and any speed.
1999 camry v6 3.0 engine surges at random and any speed. code is p0171 system too lean bank 1 sensor 1. replaced o2 sensor bank2 sensor 1, egr valve, cleaned maf sensor, cleaned idle air control valve… read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
1999 camry v6 3.0. engine surges, stumbles and almost
1999 camry v6 3.0. engine surges, stumbles and almost stalls. cleaned maf sensor, cleaned idle air control, replaced egr valve, replaced o2 sensor bank 2 sensor 1. code is p0171 system too lean bank 1… read more
ted ritter
ted ritter
Team Leader/toyota master tech/retired
High School or GED
2,692 satisfied customers
I have a 97 camry that was running then the engine raced up
I have a 97 camry that was running then the engine raced up but car slowed down . now the engine starts but dies as soon I I put it in any gear, its an auromatic … read more
Toyota Service
Toyota Service
Toyota Expert
5,211 satisfied customers
The car is 2001 Camry 5SFE and A140E. When the engine is
The car is 2001 Camry 5SFE and A140E. When the engine is cold and the car has just been turned on, if I go into reverse gear, the shift is smooth. But after 5 minutes, when I put it in reverse either … read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
12,737 satisfied customers
The check engine sign is on. P2716. 2011 toyota camry SE.
took it to autozone, they gave me the code however, i dont know if to take it to a mechanic or an electrician? … read more
Skyvisions
Skyvisions
ASE Certified Technician
High School or GED
12,737 satisfied customers
Wondering if the engine block from a 07 hybrid camry can be
hi wondering if the engine block from a 07 hybrid camry can be used on a 08 camry gas? thanks… read more
Pete
Pete
Mechanic
Construction, Plant Fitter
136 satisfied customers
My air conditioner doesn't always work. Sometimes it comes
My air conditioner doesn't always work. Sometimes it comes on just fine...other times nothing happens when I turn it on. … read more
ted ritter
ted ritter
Team Leader/toyota master tech/retired
High School or GED
2,692 satisfied customers
The air conditioner doesn't work. Not yet. How do you do
The air conditioner doesn't work JA: Have you checked the Freon level? Customer: Not yet. How do you do that? JA: What is the model/year of your Toyota? Customer: 2006 prius JA: Are you fixing your Pr… read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
Air conditioner - compressor not coming on. Has freon in it.
Air conditioner - compressor not coming on . Has freon in it. … read more
Gunvir Singh
Gunvir Singh
1,949 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