1987 Mazda Truck Pedal dropping

1987 MAZDA TRUCK
87,000 MILES • 4 CYL • 2WD • MANUAL
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DRIPDOC
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  • 1 POST
Someone else wrote in with the same Question, but I have done all that you suggested and still have the same prob. I have replaced all brake lines, shoes, pads, master cylinder. I performed the test the book mentions and still the pedal will travel almost to the floor on the first step I still have brakes at the floor but doesn't seem right. comes up on second step and I did get some more pedal after adjusting the rear shoes. could it be the metering valve on the firewall, or is this common for this model?
HELP dripdoc@neo.rr.com :x
Feb 26, 2008 at 6:43 AM
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MASTERTECHTIM
  • ✓ASE Certified Mechanic
  • 4,750 POSTS
  • ASE Certified Mechanic
sounds like you covered the basics. now here are some things also that can cause your problem. if a wheel bearing is loose it can cause the rotor to push back the piston of the caliper. also make sure calipers move freely.
Feb 26, 2008 at 7:24 AM
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