Newbie Tech Section Often asked technical questions can be asked here
Sponsored by:
Sponsored by: CARiD

Air in brake lines on '89 4Runner, why?

Thread Tools
 
Search this Thread
 
Old Apr 18, 2011 | 03:33 PM
  #1  
Mr.Folks's Avatar
Thread Starter
Registered User
 
Joined: Apr 2011
Posts: 10
Likes: 0
Air in brake lines on '89 4Runner, why?

No matter how much I bleed the brakes or the master cylinder on my '89 4Runner it still pumps air at the left rear bleeder and at the line closest to the fluid reservoir. The line furthest from the reservoir on the mc pushes fluid like a champ. I can't figure this out, any ideas?
Reply
Old Apr 18, 2011 | 04:21 PM
  #2  
dropzone's Avatar
Fossilized
iTrader: (6)
 
Joined: Oct 2005
Posts: 19,771
Likes: 456
From: PNW
Recently replaced the master cylinder and not correctly bench bleed it?
How are you bleeding your brakes? Including the LSPV(thing with the long rod on rear axle)?
Reply
Old Apr 18, 2011 | 04:48 PM
  #3  
Mr.Folks's Avatar
Thread Starter
Registered User
 
Joined: Apr 2011
Posts: 10
Likes: 0
I didn't replace the MC because the one line furthest from the reservoir pumps fluid like a champ even though the line closest to the reservoir on the MC pumps fluid and air. Other than that I have bled all lines including the LSPV in the correct order. Is it as simpe as an MC replacement?
Reply
Old Apr 18, 2011 | 11:24 PM
  #4  
wyoming9's Avatar
Registered User
iTrader: (1)
 
Joined: Apr 2009
Posts: 13,381
Likes: 100
From: I live in New Tripoli Pa out in the woods
Smile

Just curious have you replaced any of the lines??

I have seen either a bad flare or a cross threaded fitting be able to suck air but the fluid loss is so small it is hard to notice.

What line near the Master Cylinder are you talking about???

you bleed the the calipers or wheel cylinders if you have rear drums and the LSPV all though all those I tried to bleed the bleeder would not budge and I ended up replacing the valve. With new ones

Last edited by wyoming9; Apr 18, 2011 at 11:25 PM. Reason: typo
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
RedRunner_87
95.5-2004 Tacomas & 96-2002 4Runners (Build-Up Section)
84
Jun 1, 2021 01:51 PM
MMA_Alex
86-95 Trucks & 4Runners (Build-Up Section)
25
Apr 18, 2017 05:07 AM
coryc85
Misc Stuff (Vehicle Related)
6
Sep 9, 2015 06:24 AM
Jnkml
95.5-2004 Tacomas & 96-2002 4Runners
3
Jul 6, 2015 01:20 PM
CJ94yota
86-95 Trucks & 4Runners (Build-Up Section)
2
Jul 3, 2015 10:14 PM




All times are GMT -8. The time now is 03:10 PM.