noise and pulsating brakes on Mazda B3000

Average mileage: 87,000 (87,000–87,000)
1 model year affected: 2001
1 person reported this problem
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problem details
I backed out of my drive way and there was no problem got down the road. heard a thud got out and check did not see any thing. drove a little further and the brakes where pulsating. sounds like it was coming from the rear but also from the front left side. brakes are working but as I said they are pulsating and making noise..