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As I said, I have not seen or heard about it here but would assume it would be a partially worn out accumulator.
It's a long shot being an electrical issue like the pressure monitor since cooling the accumulator alone seems to fix it unless cooling the brake fluid also helps cooling down the hydraulic brake pump so that it pumps faster keeping the pressure up.
If it is the hydraulic pump, it could probably be tested using the Saab specific ABS tester tool and adapter instead of the accumulator for those years or maybe measure the amperage draw of the pump using a lab scope.
But this would also have top be tested when it is hot enough.
I have only seen a couple of hydraulic pumps go bad and no brake master cylinders. I have replaced quite a few more valve blocks though due to the sudden pull to left syndrome during hard braking.
Anders
SWEDECAR
Posts in this Thread:
- ABS failure after long traffic nightmare..., ZAAB , Sat, 7 May 2011 15:52:45
- Re: ABS failure after long traffic nightmare..., thresholdmusic, Sun, 8 May 2011 09:17:11
- There's an easy cure for that., Notnoel , Sat, 7 May 2011 17:26:28
- Had it overheat once..., Cary, Sun, 8 May 2011 19:15:09
- I have never heard that, SWEDECAR , Sun, 8 May 2011 09:07:47
- Re: Over heated., Saabnutt, Tue, 10 May 2011 19:43:08
- Re: I have never heard that, ZAAB , Sun, 8 May 2011 15:38:12
- And that's exactly my experience,....., vsfoxe , Sun, 8 May 2011 10:10:56
- Anders - replacing the accumulator had no effect, Notnoel , Sun, 8 May 2011 09:36:40
- Interesting., SWEDECAR , Mon, 9 May 2011 08:18:16 <-- Viewing This Message
- Notnoel I'm a bartender in DC, Philip Schall, Sat, 7 May 2011 21:14:55
- i would expect you'd use cotton socks, not nylon or..., baggsly , Sat, 7 May 2011 18:42:55
- thanks for the tip!!, Saab Junkie, Sat, 7 May 2011 18:29:04
- Re: There's an easy cure for that., ZAAB , Sat, 7 May 2011 18:00:11
- I experience it once or twice each summer with....., vsfoxe , Sat, 7 May 2011 17:43:32
- Whoa! Glad you made it home safe., nateh89spg , Sat, 7 May 2011 17:07:06
- Re: ABS failure after long traffic nightmare..., RadioFlyer, Sat, 7 May 2011 16:09:52
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