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I have replaced my front calipers and pads. I need to bleed the brakes. Hayes manual is hard for me to understand. It refers to a "bleed pin" on some models. I can not find one on my 1989 F150. It is up on stands now, and I really need to get it down. Please help if you can.
I have done my research and know HOW to bleed them, it just appears that fluid is NOT getting to the calipers. The mentioned "Bleed Pin" will prevent that from occuring, if I could only find it.
If you are just bleeding the front brakes then I would not worry about the pin. It is for the combo valve so if you loose pressure in the rear brakes it will shut it off fluid flow. i.e bleeding rear brakes.
You may need to pump the braked a little mor . you are filling the calipers w\ fluid. If you look under the truck you may find where all the brake lines come together. that is the combo valve. under the valve is a rubber plug that is where the pin goes. It my be covered with mud
Rick, or anyone who can help. I went and checked under my truck for the combo valve. I found the point where the lines come together as you mentioned. However, underneath it, I found what appears to be a metal, recessed cap, or possibly an allen type bolt or screw. I don't think this is where the bleeder pin is, unless it is UNDER that bolt or screw.
I am sooooo lost. The good thing is that I got another ride to the airport in the morning. The bad thing is that when I return Thursday, I will be in the same situation.
I have pumped, and pumped and pumped. I have opened and closed and opened and closed the bleeder valve a hundred times. Nothing is working. There is little, if any fluid running into my capture bottle when I open the valve. There is NO difference in the resistance of the brake pedal. And now, the truck is at my house, and I am unable to drive it to a shop to get this figured out.
So PLEASE.... any ideas or help from anyone will be sincerley appreciated.
I hope I have a bunch of new things to try when I return on Thursday.
It is under there, A small hole It is the middle of the nut.I am learning about it too. Some other threads I came across spoke of it. You put a pin in there to reset the valve and pump really slowly, That is what I read anyway. I am having the same trouble you are. I bought the truck to be a work trucj and found both spring are broken and the combo valve is stuck. The owner before me let the rear brakes leak for years and the valve is stuck closed
Actually, my post to weldingfreak was supposed to go here, please refer to my post there as it applies here, somethig like that, FSC
It's been a long day,
Ok... Great News. I HAVE BRAKES!!! I ended up replacing the master cylinder. bench bleeding it, and then bleeding all four corners. I learned alot. My only problem is that after I replaced the MC, my "Rear Anti-Lock Brake" indicator on my dash will NEVER go out. What do I need to do to get rid of this light? All brakes work fine. In fact, better than they have in years. So, thanks for all the help, and hit me one more time with an answer to this question.
> my "Rear Anti-Lock Brake" indicator on my dash will NEVER go out
When you bleed the brakes, you should clean the screen on the RABS valve (have to remove the brake line going to it - can be tricky), and bleed the RABS after you do the two rear brakes. Try this, once done bleeding, if it does not go out, with the key off, remove the fuse, turn the vehicle on, and then off, reinsert fuse.
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