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Old 04-20-2009, 01:03 PM
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Originally Posted by jrfishel1
FYI, my 1990 Cadillac Fleetwood has an electric brake booster as factory equipment. The v-8 FWD version carries the electric booster due to limited clearance. This is a cheap way of getting power brakes for a large car (my fleetwood is quite heavy) that cannot use vacuum assist braking.
That's the Powermaster system that was discussed earlier in this thread. Again, it is an electric pump that uses brake fluid to also provide hydraulic boost to the brakes. Similar in concept to the hydroboost that uses the power steering pump, but it's totally self-contained. The Powermaster system was used on a lot of GM full size cars in the 1980s and early 90s, including the Buick turbo cars. Frequently the accumulator goes bad, but it is also an easy fix.
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