GM

GM repair problems? Ask a GM repair expert now.

Ask an Expert,
Get an Answer ASAP!

limit: /c problem, fuse under hood blows when ac is turned..switches…

Customer Question
A/c problem, fuse under hood...
A/c problem, fuse under hood blows when ac is turned on. replaced compressor an presure switch on rear of compressor. if i pull either wire off of the limit switches the fuse is ok. any clues? 1998 chevy 3500 van 7.4 lit
Submitted: 8 years ago.Category: GM
Show More
Show Less
Ask Your Own GM Question
Answered in 5 minutes by:
6/22/2010
GM Mechanic: BigBlock434, GMC Technician replied 8 years ago
BigBlock434
BigBlock434, GMC Technician
Category: GM
Satisfied Customers: 291
Experience: ASE Master certified and 100% General Motors trained in all fields
Verified
What fuse is blowing?
Ask Your Own GM Question
Customer reply replied 8 years ago

the 15 amp a/c fuse

 

GM Mechanic: BigBlock434, GMC Technician replied 8 years ago
I see a 10 Amp fuse in the under hood fuse block for the A/C/ system. Is this the fuse you are talking about?
Ask Your Own GM Question
Customer reply replied 8 years ago
its located in a small fuse box under the hood, it may be 10a but it had a 15 in it, there is also a a/c relay in this box, do you think it could caulse the problem?
GM Mechanic: BigBlock434, GMC Technician replied 8 years ago
It should be a 10 Amp fuse. Let me look at the diagram and I will see.
Ask Your Own GM Question
Customer reply replied 8 years ago
k thanks
GM Mechanic: BigBlock434, GMC Technician replied 8 years ago
What I am seeing here is you have a aux. cooling fan on this circuit as well. You will need to separate these components to see which one is causing your short. I will send you the diagram.
Ask Your Own GM Question
GM Mechanic: BigBlock434, GMC Technician replied 8 years ago
Ask Your Own GM Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a gm mechanicLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask BigBlock434 Your Own Question
BigBlock434
BigBlock434
BigBlock434, GMC Technician
Category: GM
Satisfied Customers: 291
291 Satisfied Customers
Experience: ASE Master certified and 100% General Motors trained in all fields

BigBlock434 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 was having a terrible problem with the wheel bearings on my 98 Chevy Cavalier and I suspect that using this website saved me plenty of time and money.

Todd LRochester NY

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:

GM Tech (Cam)

GM Tech (Cam)

GMC Mechanic

5,844 satisfied customers

GM Grand Master Technician 2007. 14 years experience.

Gary

Gary

GMC Technician

1,561 satisfied customers

15 years gm master tech/15 years ASE master tech

car tech

car tech

ASE Certified Technician

449 satisfied customers

25 year master tech and shop owner

Chris (aka- Moose)

Chris (aka- Moose)

GMC Technician

234 satisfied customers

16 years of experience

Paul M ASE Master

Paul M ASE Master

ASE Master Tech

187 satisfied customers

ASE Master Tech 20+ Years

Anthony

Anthony

GMC Technician

489 satisfied customers

GM Certified

Amedee

Amedee

GMC Technician

470 satisfied customers

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

< Previous | Next >

Related GM Questions
Looking for some information on a EG - 1 fuse that continues
Looking for some information on a EG - 1 fuse that continues to blow in my 99 Chevy 3500 van … read more
kalamykid
kalamykid
Pactor automotive
Vocational, Technical or Trade Scho
97 satisfied customers
I don't have any power coming to my fuel pum relay. 250k
I don't have any power coming to my fuel pum relay … read more
TIM MOHR
TIM MOHR
SHOP OWNER
Master's Degree
8,037 satisfied customers
I have a 2003 savana van 1500 passenger awd. no low beam
Customer: ***** *****, I have a 2003 savana van 1500 passenger awd. no low beam headlights. High beams and drl and parking lights work. I have replaced the dimmer switch, head light switch. all fuses … read more
Gary
Gary
GMC Technician
Vocational, Technical or Trade Scho
1,561 satisfied customers
I am having problems with AC compressor clutch not starting,
I am having problems with AC compressor clutch not starting, it seems to be a grounding problem I work on Ac for a living it is full of Freon. light on dash is lit I can start pump by jumping relay un… read more
BOBBYSS
BOBBYSS
TECHNICIAN/ADVISOR
Associate Degree
8,343 satisfied customers
Hummer H3: Gary thanks for your help Unfortunately I have
Gary thanks for your help Unfortunately I have another problem my air conditioner not working every time I try to turn on the fuse blows… read more
Gary
Gary
GMC Technician
Vocational, Technical or Trade Scho
1,561 satisfied customers
GM: 2001 gmc 3500 ac does not run can run a wire from fuse
2001 gmc 3500 ac does not run can run a wire from fuse control box under hood connect to where ground wire goes on to ac relay it will run but that is with low pressure switch disconnected and you can… read more
kwiggins29059
kwiggins29059
Associate Degree
219 satisfied customers
I am needing the proper a/c wiring diagram for an early 2004 Chevy Silverado HD2500 Diesel
I am needing the proper a/c wiring diagram for an early 2004 Chevy Silverado HD2500 Diesel. The a/c is intermittentantly working… read more
Michael Moore
Michael Moore
Team leader, bumper to bumper tech.
Associate Degree
1,323 satisfied customers
GM Jimmy: I have a 1998 GMC Jimmy the a/c compressor will not
I have a 1998 GMC Jimmy the a/c compressor will not come on.The compressor was replaced last year it worked until I used the heater.The controls for temp. will get hot and back to cool. The controls f… read more
Dave Nova
Dave Nova
Auto Dealership Owner
Associate Degree
34 satisfied customers
2000 GMC: only hot air blow out..compressor..power coming
My 2000 GMC Jimmy has only hot air blow out. I checked compressor has no power coming. All fuse are good. What is problem?… read more
Dan
Dan
High School or GED
1,401 satisfied customers
2003 GMC Savana Instrument cluster illumination lights and
2003 GMC Savana Instrument cluster illumination lights and climate control cluster lights out. Cluster diagnostic lights good and come on ignition start up. Radio lights good and do dim with lights di… read more
GMWrencher
GMWrencher
Associate Degree
206 satisfied customers
1995 Sierra: ac..switch to change air flow from defrost to floor
GMC Pickup 1995 Sierra 454 engine. AC does not turn on. Also on the same panel is the switch to change air flow from defrost to floor. This does not work either. Looked at circuit board, visually look… read more
JContin
JContin
Master's Degree
125 satisfied customers
2004 GMC Yukon Denali: AC does not blow out cold air..diagram
I have a 2004 GMC Yukon Denali with same problem as previous question "2006 GMC Sierra Denali, AC does not blow out cold air". Reply was by MP Moore. I have dropped the glove box as suggested but cann… read more
GM Tech (Cam)
GM Tech (Cam)
GMC Mechanic
Vocational, Technical or Trade Scho
5,844 satisfied customers
2000 Chevy: relay..hi & low pressure switches jumped..cooling and on/
2000 Chevy Z71 a/c runs cold for 2 blks or 2 miles & comp quits. Good pressures; relay and clutch replaced, hi & low pressure switches jumped. Comp restarts after cooling and on/off switch cycling.… read more
Matt J
Matt J
Owner of Jones Automotive
Vocational, Technical or Trade Scho
1,000 satisfied customers
1991 GMC: Van..refilled..its the compressor because the fan mode works
I have a 1991 GMC Van which had run out of AC gas. I refilled to the blue zone but still can not feel the AC. Don't think its the compressor because the fan mode works, but when I switch to AC, there … read more
Steve7654
Steve7654
Service Manager/ Technician
4 satisfied customers
1991GMC: Van..the AC, they believe it to be the compressor..electrical
Hello Sir or Ma'am: I purchased a 1991 GMC Starcraft Conversion Van from an older couple, that have been the only owners. The only issue is the AC, they believe it to be the compressor and some electr… read more
Cory
Cory
Auto technician
Vocational, Technical or Trade Scho
84 satisfied customers
96 chevy truck: The a/c worked fine but after winter doesnt work
I have a 96 chevy truck. The a/c worked fine but after winter doesn't work. No info. in my shop manual about a/c. Fuse and relay are fine. If air is directed out of dash vents, as soon as you hit the … read more
Matt J
Matt J
Owner of Jones Automotive
Vocational, Technical or Trade Scho
1,000 satisfied customers
99 Suburban: compressor will not engage (all fuses check good)..blower
99 Suburban with c69 A/C. Front blowing warm and rear blowing cold. Went to work on it the other day... now the compressor will not engage (all fuses check good) and the rear blower will not shut off.… read more
Dave Nova
Dave Nova
Auto Dealership Owner
Associate Degree
34 satisfied customers
Gmc: a/c compressor never stops runing even when turned off..pull
gmc w4500 a/c compressor never stops runing even when turned off. if i pull the fuse the compressor will cycle.… read more
GM expert tech
GM expert tech
Auto Technician
High School or GED
92 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