Notices
1988 - 1998 (GMT400) Section for all discussion related to the 1987-1998 Chevrolet and GMC trucks.

1997 k1500

Thread Tools
 
Search this Thread
 
Old April 14th, 2018, 9:32 PM
  #1  
CF Beginner
Thread Starter
 
Dmntd's Avatar
 
Join Date: Apr 2018
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Default 1997 k1500

My front brakes keep constant pressure. I replaced the brake booster master cylinder calipers brake pads and flush the system twice. Nothing has eased the pressure of the front brakes. Can someone please suggest something else it may be?
Old April 15th, 2018, 4:00 AM
  #2  
CF Monarch
 
oilcanhenry's Avatar
 
Join Date: Oct 2017
Location: USA
Posts: 4,613
Received 262 Likes on 254 Posts
Default

Originally Posted by Dmntd
My front brakes keep constant pressure. I replaced the brake booster master cylinder calipers brake pads and flush the system twice. Nothing has eased the pressure of the front brakes. Can someone please suggest something else it may be?
Could be your calipers/pistons are sticking. On an older pickup like yours its very possible. Did you put any disk brake grease on the caliper retaining bolts?
Old April 15th, 2018, 9:36 AM
  #3  
CF Beginner
Thread Starter
 
Dmntd's Avatar
 
Join Date: Apr 2018
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Default

Yes I did I replaced the brake booster the master cylinder the calipers have put new brake pads in I got the grease product is there any way you could be the ABS system? I even went as far as following all the copper lines or steel lines whatever it is all the way up there's no leaks I bled all four brakes last night. I followed the copper lines and everything to to see if there were any leaks copper steel whatever it is. I've dumped about 350 to $400 into my brakes front brakes will not let up pressure.

Last edited by Dmntd; April 15th, 2018 at 9:40 AM.
Old April 15th, 2018, 10:11 AM
  #4  
Super Moderator
 
tech2's Avatar
 
Join Date: Mar 2011
Posts: 9,169
Received 507 Likes on 467 Posts
Default

what about the flex lines? they can act like a check valve when they deteriorate.
Old April 19th, 2018, 10:30 AM
  #5  
CF Beginner
Thread Starter
 
Dmntd's Avatar
 
Join Date: Apr 2018
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by tech2
what about the flex lines? they can act like a check valve when they deteriorate.
The flex valves are fine I took a soft scrub brush and looked for holes and whatnot their in good condition...
Old April 19th, 2018, 10:31 AM
  #6  
CF Beginner
Thread Starter
 
Dmntd's Avatar
 
Join Date: Apr 2018
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Dmntd
The flex valves are fine I took a soft scrub brush and looked for holes and whatnot their in good condition...
I wish I knew a brake pro....
Old April 19th, 2018, 11:38 AM
  #7  
CF Active Member
 
burnhedge's Avatar
 
Join Date: Jul 2015
Posts: 228
Likes: 0
Received 7 Likes on 7 Posts
Default

It's the flex lines as tech 2 said. They break down on the inside. You will not notice any thing wrong on the outside. It's very common on these trucks.




All times are GMT -5. The time now is 6:16 AM.