Chevy

Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

2006 chevy c5500 changed the brake booster and the warning…

Customer Question
2006 chevy c5500 changed the...
2006 chevy c5500 changed the brake booster and the warning light is on on the dash. when i first started it the light was on so i disconnected the pressure switch and it went out but once i stepped on the brakes the light cam on and wont go out. the brakes work fine
Submitted: 1 month ago.Category: Chevy
Show More
Show Less
Ask Your Own Chevy Question
Answered in 4 minutes by:
3/23/2018
Chevy Mechanic: Jerry Newton, Chevy Technician replied 1 month ago
Jerry Newton
Jerry Newton, Chevy Technician
Category: Chevy
Satisfied Customers: 5,628
Experience: ASE Master Technician, L1, Master GM Technician. Over 20 years of bumper to bumper GM experience.
Verified

You're talking about the red brake light on the dash?

Ask Your Own Chevy Question
Customer reply replied 1 month ago
there is 2 of them one on the main dash panel and one in the center panel and they are both on
Chevy Mechanic: Jerry Newton, Chevy Technician replied 1 month ago

If they are both on, then there is a trouble code stored in the antilock brake system computer. Do you have a scan tool that will retrieve ABS codes?

Ask Your Own Chevy Question
Customer reply replied 1 month ago
no i dont
Customer reply replied 1 month ago
i disconnected the battery but that didnt help
Chevy Mechanic: Jerry Newton, Chevy Technician replied 1 month ago

OK. Disconnecting the battery won't clear the codes if the failure is still present. The ABS system doesn't like something, generally it's electrical in nature. Is the pressure switch reconnected?

Ask Your Own Chevy Question
Customer reply replied 1 month ago
i reinstalled the old booster that i changed because it was leaking but the brake light stayed on so i put the new booster back in
Chevy Mechanic: Jerry Newton, Chevy Technician replied 1 month ago

Is the master cylinder filled? There is a fluid level sensor in the master cylinder. Disconnect it, see if the lights change, jumper the two wires on the connector, see if the lights change. Cycle the key between each test, because once the ABS detects a fault, it latches that fault for the entire key cycle, so the light will stay on even if you correct the condition during the same key cycle.

Ask Your Own Chevy Question
Customer reply replied 1 month ago
no change in the light during any of the tests
i did notice that even though the engine is running with the pressure switch connected when you step on the brakes the brake motor runs and when you disconnect the pressure switch the motor doesnt run but the brakes work good no matter what
Chevy Mechanic: Jerry Newton, Chevy Technician replied 1 month ago

I have schematics on this, I'd like to give them to you. Without a scan tool, we don't know exactly what the ABS computer is complaining about, but with the schematics, you can test for power and ground at all of the switches and things relative to the brake warning system side of the brakes, and you might be able to pin it down that way.

If you can't pin it down that way, you'll need to find someone with a Tech 2 or other scan tool that can retrieve the ABS codes so you can at least get a direction on this.

Please take a moment to rate my answers using the stars at the top of the page, that's how I get compensated. Let me know if you need anything else, I am happy to follow up.

Ask Your Own Chevy Question
Customer reply replied 1 month ago
i am going to keep this question open for a little while longer while i check with the schematics
Chevy Mechanic: Jerry Newton, Chevy Technician replied 1 month ago

Sure, not a problem. Let me know if I can get you anything else.

Ask Your Own Chevy Question
Was this answer helpful?
Ask Jerry Newton Your Own Question
Jerry Newton
Jerry Newton
Jerry Newton, Chevy Technician
Category: Chevy
Satisfied Customers: 5,628
5,628 Satisfied Customers
Experience: ASE Master Technician, L1, Master GM Technician. Over 20 years of bumper to bumper GM experience.

Jerry Newton 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)

Chevy Technician

15,289 satisfied customers

GM Grand Master Technician 2007. 14 years experience.

Gary

Gary

Chevy Technician

9,357 satisfied customers

15 years GM master tech

Tim&#039;s Auto Repair

Tim's Auto Repair

mechanic

8,866 satisfied customers

Have owned a repair shop for 25 yrs.

Dave Nova

Dave Nova

Chevrolet Technician

7,092 satisfied customers

ASE Master Certification. GM World Class Certification

John

John

Master A.S.E Automotive technician

4,071 satisfied customers

A.S.E MasterTechnician A1-A8 w/L1,38 years experience General Motors Master Technician

Don - Mo Lurch

Don - Mo Lurch

Auto Mech / Electronics

2,918 satisfied customers

Chevrolet Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics.

Ron Z.

Ron Z.

- Chevy Tech -

2,734 satisfied customers

18+yrs experience. State Inspector and Chevy Diagnostics

< Previous | Next >

Related Chevy Questions
05 Chevy suburban z71 no bas no brake light truck brakes are
05 Chevy suburban z71 no bas no brake light truck brakes are engaged service stability light reads on dash … read more
Pete
Pete
Independent Auto Technician
Vocational, Technical or Trade Scho
138 satisfied customers
I have intermediate brake drag and have replaced the
I have intermediate brake drag and have replaced the calipers, hoses, a line from abs to hose, and the master and still no luck fixing the drag any ideas?… read more
Chris (aka - Moose)
Chris (aka - Moose)
Vocational, Technical or Trade Scho
108 satisfied customers
Brake pedal is locked and the car won't start. The battery
Just bought it yesterday. It drove fine this morning. Now it won't start … read more
Chris (aka - Moose)
Chris (aka - Moose)
Vocational, Technical or Trade Scho
108 satisfied customers
98 z71silverado making growling noise when braking brakes
98 z71silverado making growling noise when braking brakes still work,butnot as well as normal. have chged vac boster twice!! … read more
GM Tech (Cam)
GM Tech (Cam)
Chevy Technician
Vocational, Technical or Trade Scho
15,289 satisfied customers
The 3rd brake light is not working trying to check if it
the 3rd brake light is not working trying to check if it might be a blown fuse' … read more
fordguy4u
fordguy4u
Automotive Tech
Vocational, Technical or Trade Scho
70 satisfied customers
My brake light on the dash is on and my cruise control is
My brake light on the dash is on and my cruise control is not workng. … read more
Don - Mo Lurch
Don - Mo Lurch
Auto Mech / Electronics
Vocational, Technical or Trade Scho
2,918 satisfied customers
Brake lines. Brake line has a hole in it. need to replace
Need information on how to remove the intermittent brake line. … read more
Gary
Gary
Chevy Technician
Vocational, Technical or Trade Scho
9,357 satisfied customers
Front brakes lock up. No brakes have been replaced. 05 chevy
Yes i am...have replaced calipers, brake booster, master cylinder, brake lines … read more
David Craig
David Craig
OWNER/MECHANIC
Associates
5,064 satisfied customers
2006 chevy c5500 changed the brake booster and the warning
2006 chevy c5500 changed the brake booster and the warning light is on on the dash. when i first started it the light was on so i disconnected the pressure switch and it went out but once i stepped on… read more
Jerry Newton
Jerry Newton
Chevy Technician
5,628 satisfied customers
I replaced a rear brake line on a 2001 astro 2wd. The brake
I replaced a rear brake line on a 2001 astro 2wd. The brake reservoir was empty. After replacing the line and filling up the reservoir I started to bleed the brakes. No fluid or air can out at the ble… read more
Eric
Eric
Auto Technician
589 satisfied customers
No brakes and brake light stay on. I checked all the fluid
but when i bleed them i noctice one of the lines didnt have any fluid in, … read more
Jerry Newton
Jerry Newton
Chevy Technician
5,628 satisfied customers
My brake light is on and is on and i checked the if i still
my brake light is on and is on and i checked the if i still had brake fluid and i still do. What else should i do?? … read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
The rear brakes on a 2011 Gmc Sierra was replace and now the
The rear brakes on a 2011 Gmc Sierra was replace and now the brake light in the console won't turn off. What would be the reason … read more
Todd Audette
Todd Audette
Automotive Technician
Vocational, Technical or Trade School
357 satisfied customers
I replaced my rear brakes myself ,don't know why the brakes
I replaced my rear brakes myself ,don't know why the brakes don't apply at the same time ?.I was not cleal on how to adjust tham? … read more
GM Tech (Cam)
GM Tech (Cam)
Chevy Technician
Vocational, Technical or Trade Scho
15,289 satisfied customers
The right side brake light not working all other OK. Brake
the right side brake light not working all other OK … read more
AMEDEE
AMEDEE
AUTOMOTIVE TECHNICIAN
Vocational, Technical or Trade Scho
9,105 satisfied customers
1995 chevy Camaro 5.7 hard brake pedal brake light on, right
1995 chevy Camaro 5.7 hard brake pedal brake light on, right front wheel locks up upon brake application. Have checked for bad calipers sticking, bad rubber brake lines ok, booster getting good vacuum… read more
Lou P. master tech
Lou P. master tech
Mercedes Benz master tech
Bachelor's Degree
649 satisfied customers
2006 Chevy Malibu brake light stay on all the time. Brake
2006 Chevy Malibu brake light stay on all the time … read more
Jaybird61
Jaybird61
Master Automotive Mechanic
2,280 satisfied customers
2011 tahoe brake lights not working. i put a brake light
2011 tahoe brake lights not working. i put a brake light switch on and still not working. any suggestions? … read more
Mechanic01
Mechanic01
2,385 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