Why do i do if i cant get my Rear brake bleeders open on my 93' S-10 Blazer?

Question

I have just replaced the brake lines on this s-10 blazer were needed but i cant get the bleeders to open. in the drums in the back what do i do?

Answer 1

You really have no choice but to keep working on it til you do get them open.

Answer 2

I had this problem on a '84 Camaro. Clean them up as best you can with a small wire brush. Then spray some WD 40 penetrating lubricant on them and let them stand like that for a half hour. A couple extra squirts now and then in that time period is ok too. Don't use an open wrench to try to break them loose use a box wrench (they are brass so they will strip rather easily) and it should fit snug. Try to open the bleeder but don't use too much force. A short wrench helps with this. It may also help to tap the wrench with a rubber mallet. If it still won't budge get a small piece of wood and put it over the bleeder and tap it a couple times moderately. Sometimes this will "shock" the threads. If all else fails and you can't take it to a garage (some won't mess with these) as a last resort try wrenching it open really hard and if it breaks you can get it out with an "Easy Out". Hardware and auto stores carry them and they are not expensive. Hopefully the WD 40 will do the trick. Good luck

Answer 3

I wouldn't try heat...you would need to heat the body and not the bleeder to do any good and that would be enough heat to damage the rubber seals in there. If you can't get them loose with vise grips or a wrench or if they brake off then you have two choices.

1. Replace the wheel cylinders.
2. Bleed them by loosening the brake line while someone steps on the brake pedal. This won't remove all of the air but since they are on the rear it might be good enough. Or just good enough to get you to the store to buy wheel cylinders.

Answer 4

Liquid wrench and the other solvents that have been mentioned are a place to start. You may have to replace the bleeders when you're done but try to get a pair of vice-grip pliers on them after you've drenched them with solvents. Another ploy is to use a Turner Torch (purchase one at Lowe's or Home Depot) like the plumbers use for sweating copper. Heat up the nipples and try the vice grips again. Open up the cap to the master cylinder if you use a torch. The fluid will get hot and expand.

Answer 5

As for me I hate to set fire to any transportation, even by accident. So I would just replace the wheel cylinders.
Next time get the right wrench before you mess up the bleeders.
Oh yes, spring a few dollars and get the bleeders that allow you to do a one man bleed job (they have a check valve in them so there is no need to stay under the thing while bleeding).

Answer 6

Have you tried soaking them down really good with some Liquid Wrench, and letting them sit for a long time? I had a similar problem with an older truck I once had, but on the front discs, and I ended up replacing both calipers becasue I never could get the bleeders to loosen up. Good luck : )

Answer 7

PB. blast is real good to use it will travel the threads but clean with wire brush to help clean up the bleeder valve plus use a line wrench ..

Answer 8

You can either drill them out or better yet heat the bleeders red hot with a torch, cool and then twist them out. Either way get replacements from you auto parts store. Forget the penetrating oil.
Done this stuff for 40 yrs.

Answer 9

pull the wheel cylinders either replace them or put in vise...disassemble it.. heat bleeder up with a torch.. remove it with wrench or vise grips... reassemble with rebuild kit or old parts
make sure you replace the bleeder with a new one using never seize on the threads

Answer 10

most people that run into this problem just replace wheel cylinders cause you need torch to heat up old bleeders not a job for the backyard mechanic