Brake Bleeding Question
01-19-2009, 07:44 PM
#1
Cruising
Thread Starter
Member Since: Mar 2001
Location: Springfield, Mo. USA
Posts: 11
Likes: 0
Received 0 Likes
on
0 Posts
Brake Bleeding Question
I have bled the brakes on many Corvettes C4 - C5's with no problems, but I bled my 2005 C6 Z51 and now have a pedal problem.
Vaccuum bled all four corners in the correct order, fluid cleared up with no bubbles. With the car on the stands, I had great pedal, right at the top, just a before I started. When I start the car, the pedal moves down to just below the gas pedal with solid, but not maximum pressure.
Brakes are good to drive and will stop the car well, but the pedal was still down below the gas pedal. This makes it hard to heel toe down shift for autocross.
Re-Bled the brakes, no bubbles at any corners, great pedal until you start the car. I called my shop, they had no clue.
Any help is appreicated.
Vaccuum bled all four corners in the correct order, fluid cleared up with no bubbles. With the car on the stands, I had great pedal, right at the top, just a before I started. When I start the car, the pedal moves down to just below the gas pedal with solid, but not maximum pressure.
Brakes are good to drive and will stop the car well, but the pedal was still down below the gas pedal. This makes it hard to heel toe down shift for autocross.
Re-Bled the brakes, no bubbles at any corners, great pedal until you start the car. I called my shop, they had no clue.
Any help is appreicated.
01-19-2009, 08:21 PM
#2
Former Vendor
Member Since: Aug 2005
Location: Loganville GA
Posts: 5,774
Likes: 0
Received 0 Likes
on
0 Posts
did you replace calipers, or just bleed them? If they were replaced, you may have the rears on the wrong side. Bleed screws above the fluid line is correct.
Not trying to belittle you or anything, but 9 times out of 10 when calipers are replaced and they have those symptoms, that is the problem.
Not trying to belittle you or anything, but 9 times out of 10 when calipers are replaced and they have those symptoms, that is the problem.
01-20-2009, 12:18 AM
#4
Safety Car
did you replace calipers, or just bleed them? If they were replaced, you may have the rears on the wrong side. Bleed screws above the fluid line is correct.
Not trying to belittle you or anything, but 9 times out of 10 when calipers are replaced and they have those symptoms, that is the problem.
Not trying to belittle you or anything, but 9 times out of 10 when calipers are replaced and they have those symptoms, that is the problem.
Last edited by HANNY; 01-20-2009 at 12:21 AM.
01-20-2009, 01:01 PM
#5
Safety Car
I'm kinda leaning this way too, you may have air in the master cylinder and from what I hear it is a PITA, also it is easy to do in our efforts to completely "flush" each brake line, I would bleed the MC just to be SAFE!
01-20-2009, 08:27 PM
#6
Cruising
Thread Starter
Member Since: Mar 2001
Location: Springfield, Mo. USA
Posts: 11
Likes: 0
Received 0 Likes
on
0 Posts
I want to thanks everyone for the suggestions. I had not replaced the calipers, but have seen them get switched before. I was orginally bleeding the brakes to get ready for the upcoming autocross season.
I also come to the opinion of having to bleed the m/c.
Again, thanks for the help.
I also come to the opinion of having to bleed the m/c.
Again, thanks for the help.
01-21-2009, 05:48 AM
#7
Safety Car
Member Since: Jan 2008
Location: Middle of No where AK
Posts: 4,711
Likes: 0
Received 2 Likes
on
2 Posts
bleeding the m/c is a pain. You have to put it in a vice and use a dowel to move the cylinder back and forth it makes a mess make sure you dont get that crap on your paint when you take it out.
01-21-2009, 12:48 PM
#8
Safety Car
that's old school, our cars have the anti lock system and thats the PITA but everthing can be done on the car, what you said would be for new install and not even sure about the vette, RULE #1 IF YOUR GOING TO WORK ON YOUR CAR YOUR SECOND PURCHASE SHOULD BE A GOOD SET OF MANUALS!!!!!
01-21-2009, 12:50 PM
#9
Melting Slicks
Member Since: Jun 2004
Location: trenton nj
Posts: 2,336
Likes: 0
Received 2 Likes
on
2 Posts
St. Jude Donor '09
that's old school, our cars have the anti lock system and thats the PITA but everthing can be done on the car, what you said would be for new install and not even sure about the vette, RULE #1 IF YOUR GOING TO WORK ON YOUR CAR YOUR SECOND PURCHASE SHOULD BE A GOOD SET OF MANUALS!!!!!
