Chevy

Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

Chev impala: 07 chev impala wont build any brake pedal pressure…

Customer Question
07 chev impala wont build...
07 chev impala wont build any brake pedal pressure after installing new calipers??
Submitted: 3 years ago.Category: Chevy
Show More
Show Less
Ask Your Own Chevy Question
Answered in 3 minutes by:
5/20/2015
Chevy Mechanic: Eric, Automotive Repair Shop Manager replied 3 years ago
Eric
Eric, Automotive Repair Shop Manager
Category: Chevy
Satisfied Customers: 35,193
Experience: 20+ yrs. experience as repair shop manager and technician.
Verified
HI,
Ok, the most common issue is installing the new calipers on the wrong sides - they fit either side but are actually side specific for correct bleeder screw replacement.
Look at the calipers you installed. Are the bleeder screws below or above the brake hose to caliper connection?
If they are below, then you have them on the wrong side. When the bleeders are below the connection, there is always an air bubble at top caliper that will never bleed out. Swap sides with the calipers and bleed them and you are good to go.
IF the bleeders are correct, let me know and we will go from there
Please remember to rate service using the rating page so that I may receive credit. Thanks
Ask Your Own Chevy Question
Customer reply replied 3 years ago
no that's not the problem.
Chevy Mechanic: Eric, Automotive Repair Shop Manager replied 3 years ago
HI,
Ok, does it have ABS?
Did the master cylinder go dry at any point during the repair?
Ask Your Own Chevy Question
Chevy Mechanic: Eric, Automotive Repair Shop Manager replied 3 years ago
HI,
Ok, I will go with the assumption it does have ABS and the master cylinder did indeed go dry. When this happens, it has to be bled with a scan tool to activate the ABS motors so it bleeds out the air trapped in it.
There is a workaround that is successful about 75% of the time.
You will need to use jacks and or jackstands to get all 4 wheels off the ground securely. crank engine and put in gear and accelerate to about 20mph and repeatedly slam on the brakes. Repeat about 10 times. This normally activates the ABS motors. Now with the engine idling, rebleed the brakes at all the wheels. Test pedal. If good, then good to go.
If not, then we need to recheck the work to make sure no hoses are twisted, that pads and calipers and rotors are not cocked at an angle. Repair as needed.
If ok, then will will need to do a brake line clamp test. Use vise grips and lightly clamp each rubber brake hose at the 4 wheels about 1/2 up the rubber brake hoses.
Test the pedal. It should be high and firm. If it still drops to the floor, then air in the ABS system and at this point will REQUIRE scan tool computer bleeding.
If firm, then starting at rear, remove one vise grip at a time and retest pedal. At whichever one you remove the vise grip and pedal drops to the floor, that is your problem area - either defective caliper, pads positioned incorrectly, caliper cocked, or rotor cocked at angle.
Please remember to rate service using the rating page so that I may receive credit. Thanks
Ask Your Own Chevy Question
Customer reply replied 3 years ago
we received this car at our shop after the customer replaced his own front pads. yes the master went dry. will your method mentioned work? sure hope so here we go thanks
Customer reply replied 3 years ago
lets finish up tomorrow thanks
Chevy Mechanic: Eric, Automotive Repair Shop Manager replied 3 years ago
HI,
It works about 75% of the time. If it doesnt and the rest checks out, then it will need to be bled with scan tool, Tech2 comparable. Most Snap Ons, OTC scan tools can do this if you have one.
I will be here all day tomorrow
Please remember to rate service using the rating page so that I may receive credit. Thanks
Ask Your Own Chevy Question
Customer reply replied 3 years ago
we are going to try the scan tool method again. it did nothing the first time we tried thanks
Customer reply replied 3 years ago
we have a solas pro
Chevy Mechanic: Eric, Automotive Repair Shop Manager replied 3 years ago
HI,
the solous pro should do it. If not, then time for the brake line clamp test
Ask Your Own Chevy Question
Chevy Mechanic: Eric, Automotive Repair Shop Manager replied 3 years ago
I noticed we have not yet resolved your concern you asked about. I would sure appreciate it if you would reply so I can offer my skills and knowledge and repair guide access to help as best I can.
~Do you still need more help?
~Confused by my info request or answer?
~Need more time?
~Confused on how the site works?
~Need more detail or a different explanation?
If the answer is YES to any of these just press reply and lets work on this concern some more.
If you have new questions now or in the future please do not hesitate to ask them. If you would like me to assist you. Just bookmark this page so you can access my profile easy and post a new question from the question box on my profile page. Please remember to rate service using the rating page so that I may receive credit. Thanks
Ask Your Own Chevy Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a chevy mechanicLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Eric Your Own Question
Eric
Eric
Eric, Automotive Repair Shop Manager
Category: Chevy
Satisfied Customers: 35,193
35,193 Satisfied Customers
Experience: 20+ yrs. experience as repair shop manager and technician.

Eric 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

15,756 satisfied customers

GM Grand Master Technician 2007. 14 years experience.

Gary

Gary

Chevy Technician

9,642 satisfied customers

15 years GM master tech

Tim&#039;s Auto Repair

Tim's Auto Repair

mechanic

8,884 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

2,953 satisfied customers

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

Ron Z.

Ron Z.

- Chevy Tech -

2,836 satisfied customers

18+yrs experience. State Inspector and Chevy Diagnostics

< Previous | Next >

Related Chevy Questions
2012 Impala - master cylinder replaced - new rotors and pads
2012 Impala - master cylinder replaced - new rotors and pads all around - rear calipers replaced - power bled multiple times. Start the car - no brake pedal pressure at all. … read more
Mechanic01
Mechanic01
3,695 satisfied customers
I have a 2012 Chevrolet Impala with the V6 motor. I have to
I have a 2012 Chevrolet Impala with the V6 motor. I have to replace the left rear caliber because of a seized pin. When I put the new one on the piston is going to be in all the way I'm sure. What's t… read more
Gary
Gary
Chevy Technician
Vocational, Technical or Trade Scho
9,642 satisfied customers
I REPLACED FRONT BRAKES ROTORS & PADS. I REMOVED THE
I REPLACED FRONT BRAKES ROTORS & PADS. I REMOVED THE CALIPERS BUT DID NOT REPLACE THEM. EVERYTHING WENT BACK TOGETHER JUST FINE BUT NOW I CAN'T GET ANY PRESSURE TO BUILD UP TO OPERATE THE BRAKES. I HA… read more
Jaybird61
Jaybird61
Master Automotive Mechanic
2,287 satisfied customers
GM Silverado: 2005 silverado, front brakes unlock when I loosen
2005 silverado, front brakes unlock when I loosen the master cyl from the booster, whats wrong? New roters ,calpier and pads. hit the brake pedal and caliper lock up.… read more
GM Bob
GM Bob
Automobile Technician
High School or GED
1,061 satisfied customers
chevy suburban: 98 suburban automatic 2wd w/abs vacume brake
98 suburban automatic 2wd w/abs vacume brake booster. when engine is running brake pedal to the floor. new, booster,4 master cylinders,calipers, rotors, pads shoes, spring kit and adjusters,wheel cyli… read more
Gary
Gary
Chevy Technician
Vocational, Technical or Trade Scho
9,642 satisfied customers
Chevrolet Silverado 1500: I have replaced the calipers on both
I have replaced the calipers on both front wheels. I bleed the lines but I still have no petal resistence and the pistons do not close on the pads. The vehicle is running and is a 2007 chev silverado … read more
Steve7654
Steve7654
Service Manager/ Technician
4 satisfied customers
2003 chevy impala: brake job at chev dealer..15,000 km
2003 Chev Impala 3.4. I had brake pulsations and hadd a brake job at Chev dealer. It was not completely gon so after 15,000 km. I installed high quality rotors and ceramic pads on front.. This did not… read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
2000 chevy malibu ls: pedal drops..master..rear wheel..front brake
2000 chev malibu ls .brake pedal drops to the floor. The car came in with the problem .I change the master cyclinder (bench bleed it) bleeder screws on rear wheel cyclinder was bad (new wheel cyclinde… read more
Eric
Eric
Automotive Repair Shop Manager
N/A
35,193 satisfied customers
2000 Impala: I replaced the brake pads and rotors..pedal
I replaced the brake pads and rotors on my 2000 Impala. After finishing I tried to pump up the brakes. I got no pressure in the pedal. I did not open bleed valves I forced piston into caliper with c c… read more
eauto
eauto
self employed
High School or GED
74 satisfied customers
2001 chevy: hoses..by mechanics brake pedal still builds..locking
2001 chevy silverado new hoses and calipers were installed, bled off by mechanics brake pedal still builds up pressure locking up front calipers… read more
GM Tech (Cam)
GM Tech (Cam)
Chevy Technician
Vocational, Technical or Trade Scho
15,756 satisfied customers
2000 chevy s10: peddle..the caliper break cylinders..brake pads
Problem: Spongy break peddle after replacing pads Subject: Brake pad replacement (front and rear) Vehicle: 2000 Chev S10 4x4 No problems encountered changing out all pads. I used a C-clamp to compress… read more
Tim West
Tim West
Service Manager
Computer/ Automotive certifications
16 satisfied customers
2003 chevy trailblazer: the brakes will start to stick..pedal
I have a 2003 chev trailblazer . ever since the brakes were done you will be driving and the brakes will start to stick for no rason without pressing the pedal. After a while it goes away and some tim… read more
BOBBYSS
BOBBYSS
TECHNICIAN/ADVISOR
Associate Degree
8,343 satisfied customers
Front brakes..reverse & step on brake pedal to adjust the rear brakes
When braking, it seems the car is only using the front brakes. I go in reverse & step on brake pedal to adjust the rear brakes. After that, I can feel the rear brakes functioning & the car stops as it… read more
Tim&#039;s Auto Repair
Tim's Auto Repair
mechanic
High School or GED
8,884 satisfied customers
2003 chevy impala: rotors..caliper pins, one had a rubber tip
I just changed the rear brake pads/rotors on a 2003 chev impala. My friend did 1 side, i did the other. My friend noticed a difference with the caliper pins, one had a rubber tip, the other didn't, he… read more
BOBBYSS
BOBBYSS
TECHNICIAN/ADVISOR
Associate Degree
8,343 satisfied customers
How do I change the rear brake pads on a chev. 4x4 1500
how do I change the rear brake pads on a chev. 4x4 1500 silverato pick up I the have the caliper of but not sure how to get pads off… read more
Randall
Randall
Auto Technician / Consultant
Vocational, Technical or Trade Scho
69 satisfied customers
2006 chevy impala LT: brakes..clunking noise coming..right wheel
I have 2006 chev impala LT had the brakes done a week ago I have clunking noise coming from rear right wheel only once in well. what could it be?… read more
zzdaryl
zzdaryl
Lead Auto Tech
Some college and advanced training
4 satisfied customers
96 chevy Cavalier: I went to auto zone and brought the brake pads
I need the brakes done on my 96 chevy Cavalier. I went to auto zone and brought the brake pads but I can't afford to get anyone to put them on can you tell me hoe to so I can do it myself?… read more
Bob
Bob
Vocational, Technical or Trade Scho
2,784 satisfied customers
1999 Tahoe: 000 miles..Question is in regards to the brakes..Pedal
I have a 1999 Tahoe (2DR) with 90,000 miles on it. Question is in regards XXXXX XXXXX brakes. Pedal is very soft and has been since it was new. If you feather the pedal such as when you are coming up … read more
Rob826
Rob826
Business owner
Vocational, Technical or Trade Scho
56 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