Soft brake pedal when car is on
#1
Soft brake pedal when car is on
I have a 2007 HHR LS sitck shift. I jusy spent the day replacing brake,rotors,calipers and the rear drums. After hooking everything up and bleeding the lines. The pedal will still go right to the floor. We bleed the master cylinder and it help but its still not right. The pressure builds up great with the engine off but the system looses pressure as soon as i turn the car on. Any ideas?
#4
I'm no mechanic, but I hung around my uncle's shop for 25 years (he was a brake specialist) and my first thought went to the master cylinder. If the pedal was going to the floor before the brake job, sounds like you may have just replaced a lot of parts unnecessarily.
Even with the engine off you'll still be able to hold down on that brake pedal and it will sink slowly to the floor (if the m/c is bad).
Welcome to the site - lots of great information here and lots of great guys who are happy to help!
Even with the engine off you'll still be able to hold down on that brake pedal and it will sink slowly to the floor (if the m/c is bad).
Welcome to the site - lots of great information here and lots of great guys who are happy to help!
#5
#7
Welcome to the site, sounds like them aster cylinder has been over pumped, and it sucked back air into the system, double check all the hoses , lines and fittings, the rear wheel cylinders and the front calipers!
Also the seal at the booster side of the master cylinder, if it's wet your gonna have to replace it
Also the seal at the booster side of the master cylinder, if it's wet your gonna have to replace it
#8
Builds how? If you have to pump the pedal there is still air in the lines. Also if rear drums are they adjusted properly? This can also affect pedal feel.