Brakes won't bleed

CasterTroy

CasterTroy

Faster'N You
Joined
Mar 21, 2005
Location
Wallburg
I can't get my left front caliper to bleed off. Right is fine, rears are fine.

Front left won't get fluid from the brake line to the bleed valve

it's a 79cj-7 with discs....and I just put on reman'ed calipers from O'reilys if that matters

Why would fluid not be transfering from the inlet thru the caliper?
 
I've never seen that before. Maybe try removing the bleeder screw and sticking some heavy wire down the hole to root out a possible blockage? Don't know.
 
I'll give it a shot....I tried to purge it with brake cleaner but didn't seem to get anywhere with that
 
A buddies cherokee had a similar problem. While bleeding the brake it wasnt getting any fluid through because of a blockage somewhere. We ended up using an air bleeder to suck the fluid through and in cleared the blockage.
 
My 350 did the same thing. Just Take out bleeder and rod it out with some thin wire or a needle and spray out with brake cleaner. Mine was just full of mud.
 
pull the line off the caliper, make sure you are at least getting fluid that far.

Possible to have an air lock on a line and all the pumping in the world won't do anything for it until you can over come the pressure ( is sounds crazy I know ) but if you don't have all the air out of the system, you are still compressing air and it'll push back

I've found crud in reman parts so it is possible to have a blocked passage in the caliper.
 
Reman is only as good as who cleaned it, and who built it. I would either 1. take it back and get another, or 2. do as directed above. Also if you can use air to pressurize the line in and blow thru may clear it.
But with all the hassle I think I would take it back.
 
I would pull brake line first, if fluid is getting that far, I would return caliper.

I bought a new brake line (The rubber semi-hard line) from Advance about a month ago, and while it looked fine it was collapsed inside and would not flow, so just something else top think of I suppose.
 
If your getting fluid to the caliper I'd just take it back and get another one. One trick I have used in the past for hard to bleed brakes is to fill a new or very clean oil can with brake fluid hook a small hose fro mthe can to the bleeder and pump fluid back to the master cyl.
 
does it have a proportioning valve, if so it is most likely stuck beat on it while you hit the brakes to get it to slide open and let pressure go to the caliper. brakes can be frustrating...................
 
Cperry said:
does it have a proportioning valve, if so it is most likely stuck beat on it while you hit the brakes to get it to slide open and let pressure go to the caliper. brakes can be frustrating...................
Click to expand...



and over rated. :lol:



Those old valves will do just what Chase said. I'd start with the line pop, if nothing is there, continue upstream.
 
my rears did that and it ended up that i had a pinhole in the line and i wasn't even getting fluid to the calipers to bleed them it would pull a vaccuum with the pump but no fluid i started pulling the lines apart and pumping on them until i got fluid and finiallly found the hole
 
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