Chevrolet Repair: electrical-blinkers, blinkers, flasher

Question
I drive a 1998 S-10 Blazer (4-door, 2-wheel drive, 4.3L) and, when I turn on my right blinker the front blinks like it normally would, but both of the back blinkers blink like I have the hazards turned on. Then when I apply the brakes the flasher makes a buzzing sound and both the front and rear blinkers just stay on until I let go of the brakes. At which time the front works and both back blinkers blink.  Any idea about what to do,

Already bought new flasher and the problem's still there.

Answer
Hi MC, If the left side works OK then I would say that the problem is the turnsignal switch. The brake lights go into the switch and it sounds like there is a problem with the right contacts inside the switch. If the problem was in the rear of the truck it would do the same on the left side. These switch are not cheap,around $150 i think.

Have a Nice Day     Mark