Another powermaster issue

[NY_GN]

Had a hard pedal out of nowhere, lucky for me it was in the parking lot.

No blown fuse and no brake light came on. I put in a new accumulator in and it was intermittent for a few miles, then Everything has been fine for two days.

My question is; does it take the new accumulator ball time to get to work? Or am I in for a surprise in the near future?

I know about the vacuum and hydroboost set-ups, but I want to troubleshoot this for now.

Any suggestions?

 

[TommyV8]

My new accumulator ball worked fine as soon as I put it in.

 

[balanegra]

Check the heavy black ground wire that is attached to to the firewall. It may be loose.


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[NY_GN]

Just checked wire, it's good.

 

[TurboDave]

What do your fluid levels look like while in proper operation?

proper levels shown:

 

[NY_GN]

It looks like "A" or the first one.

 

[balanegra]

If you push down on the emergency brake does the "brake indicator" come on?


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[NY_GN]

Im gonna check the acummulator ball again to make sure it is tight enough. The old one had the bolt on the outside, the new one has the bolt/pattern where the ball meets the master cylinder. It may not be flush.

 

[NY_GN]

Yes the light comes on when Ipush the e brake.

 

[NY_GN]

I'm assuming since I have no brake indicator or trouble code on the scanmaster, then its mechanical issue.

Yea or nea.

 

[balanegra]

Posted from the TurboBuick.Com mobile app

 

[balanegra]

Posted from the TurboBuick.Com mobile app

 

[balanegra]

Posted from the TurboBuick.Com mobile app

 

[TurboDave]

It looks like "A" or the first one.

There are two separate sides to the reservoir, that's why I show two different pix.

 

[TurboDave]

Had a hard pedal out of nowhere, lucky for me it was in the parking lot.

No blown fuse and no brake light came on. I put in a new accumulator in and it was intermittent for a few miles, then Everything has been fine for two days.

My question is; does it take the new accumulator ball time to get to work? Or am I in for a surprise in the near future?

I know about the vacuum and hydroboost set-ups, but I want to troubleshoot this for now.

Any suggestions?

It's working OK now, right?

 

[NY_GN]

Right, its working now, just wondering if anyone had this happen and it was the start of something bad.

 

[bison]

I've had it happen and the solution was to replace the switch

 

[gsgnnut]

I've had it happen 3 times - once it was the accumulator, 2 times it was an intermittent electrical failure of some kind . none gave any warning light or any sign of problem before the sudden failure. On All occasions it gave a hard pedal while driving with no warning light and It was a miracle no one got hurt any of the times. I went to a vacuum system after the third failure. Of all the failures, the first was on the original PM , the 2nd and 3rd occurred on different rebuilt powermasters that had replaced earlier failures. One was a warrantee replacement. Maybe I just had some bad luck with some crummy rebuilt units, but I'm just not a fan of the PM.

 

[NY_GN]

I guess it's Hydroboost time, is there a vendor that sells all components for the Hydroboost conversion?

 

[BEATAV8]

sounds like the switch is causing problems.