1997 Nissan 200sx Brake Problems Brakes Work Fine Driving Streets Freeway

1997 NISSAN 200SX
100,500 MILES
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SALVADORORTIZ
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Brake problems:
My brakes work fine driving in the streets, but in the freeway after a certain number of miles, the break pedal goes to the floor when I apply it, and I have to pump it a few times. The master cylinder is brand new, there is no leakage in the brake cylinders or the master, the brake fluid level is always the same. I've bleed the four brakes more than three times already, and the problem won't go. I suggested that maybe it's the booster, but they tell me that if it was the booster, the brake pedal would be hard to press.
Please help, Sal.
Dec 30, 2012 at 10:39 PM
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CJ MEDEVAC
  • ASE Certified Mechanic
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  • ASE Certified Mechanic
MAYBE YOU DID NOT DO ANY BENCH BLEEDING?

MAYBE THE WAY YOU ARE BLEEDING THE WHEELS IS WRONG OR INEFFECTIVE?

THIS IS THE WAY I WAS TAUGHT......WHEN DINOSAURS ROAMED THE EARTH

https://www.2carpros.com/questions/1999-ford-f-150-brakes--3

IF SOMETHING DON'T MAKE SENSE---JUST ASK ABOUT IT

EVEN THE BRAKES ON MY 1946 WILLYS BLEED THIS WAY!

I'M HERE TO HELP, IF I CAN

RETURN WITH GOOD NEWS

THE MEDIC
Dec 30, 2012 at 11:07 PM
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KHLOW2008
  • ASE Certified Mechanic
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  • ASE Certified Mechanic
Is vehicle equipped with ABS?
Dec 31, 2012 at 5:24 AM
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JACOBANDNICKOLAS
  • ASE Certified Mechanic
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  • ASE Certified Mechanic
The jeep doesn't have abs but the nissan may. (CJ MADE ME SAY IT) LOL My question is did the vehicle do the same thing prior to the new MC? Also, are the brakes properly adjusted?
Dec 31, 2012 at 6:01 AM
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