Went to flush the old brake fluid and could open only 2 of the 4 bleeder screws. Rounded off one of them in the process. Have tried liquid penetrant on the threads and still frozen. Any suggestions including the drastic would be appreciated. Thanks.

Rick
'97 5.4 Expy EB 4x2

 

wd40 didnt faze my brake bleeder screws but PB Blaster freed three of them. Wound up buying a nut remover tool from sears and took the last one off by force. pep boys,etc sell new bleeder screws but i bought one from ford just to make sure it was the right thread,etc.

 

expy, frozen screws were on a 97f150 (i.e. disregard the 03 signin name). i would like to know what causes the screws to freeze up. Mine have never been in any salt or offroad.

 

Thanks for the input. I'll try PB Blaster. I will also remove the bleeder screws and use antiseize on the threads so I don't have to go through this next time (2 years). I suspect the salty PA winters caused the frozen screws (the truck spent the early part of it's life down south).

Cheers.