Vacuum leak sound at brake pedal 2004 Sequoia - Toyota Nation Forum : Toyota Car and Truck Forums
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#1 Old 12-07-2008, 09:35 PM
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Vacuum leak sound at brake pedal 2004 Sequoia

Randomly when I let off the brake pedal, i hear a vacuum leak hissing. My breaks are find when I push down the noise goes away but when they are released the noise comes back. Also, I have full break power when pushed down. I would hate to pay the repair on a brake booster job with the booster part alone is at $700. My Sequoia only has 67k miles on it. Any ideas?
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#2 Old 12-13-2008, 12:43 AM
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Others have complained of the hissing, the fix was to replace the booster.

The unit is apparently easy enough to replace yourself if you have mechanic skills. Suggest you call auto parts stores to determine if an after market part is available at a much more reasonable price.

If having to buy a Toyota OEM part, online sites like Toyota of Dallas sell OEM parts at a discount.
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