After driving about 30 miles the car acts like you are pressing the brakes and gas at the same time?

PAMELAGROWE2022

MEMBER
2003 CHEVROLET TRAILBLAZER
6 CYL
AUTOMATIC
90,000 MILES

You can hear a moaning noise. Sometimes the brake pedal goes to the floor, and I have to pump the brakes. I have had the brakes, rotors, calipers and brake line replaced. I had been told by a transmission shop I needed a new transmission. I had another transmission company say nothing was wrong with the transmission. The mechanic has been replacing different parts and nothing has fixed the problem. One mechanic said the wheels are getting hotter than normal. Please advise. Thanks

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
47,513 POSTS

It sounds like the brake booster or brake master cylinder needs to be replaced, can you tell me when the vehicle is having the issue are the front wheels (both) hot? If so, this will be the problem. Please go over this guide to help:

https://www.2carpros.com/articles/a-comprehensive-guide-to-fixing-automotive-brakes-locking-up

This video will help as well:

https://youtu.be/WDxvEQrMkBg

Check out the images (below). Let us know what happens and please upload pictures or videos of the problem so we can see what's going on.

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