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Chevrolet G Series Van (G20) Recall 92V127000

Brakes, September 25, 1992

Original Recall from the NHTSA

Model Year(s)
Manufacturer's Report Date
September 25, 1992
NHTSA Action Number
N/A
Potential Number of Units Affected
246
NHTSA CAMPAIGN ID Number
92V127000
Component
SERVICE BRAKES, HYDRAULIC:POWER ASSIST

Summary
THE BRAKE PEDAL ASSEMBLY HAS A PUSHROD PIN THAT IS TOO SMALL AND IT IS INSTALLED IN THE WRONG POSITION, CAUSING AN INCREASED BRAKE PEDAL RATIO AND A DECREASED MASTER CYLINDER STROKE.
Consequence
THE REDUCED MASTER CYLINDER STROKE RESULTS IN FAILURE TOMEET THE PARTIAL SYSTEM FAILURE REQUIREMENTS OF FMVSS 105, "HYDRAULIC BRAKESYSTEMS". A FURTHER REDUCTION IN BRAKING ABILITY AT A TIME WHEN PARTIAL SYSTEMFAILURE HAS OCCURRED COULD RESULT IN A VEHICLE CRASH.
Remedy
REPLACE THE BRAKE ASSEMBLY.
Notes
SYSTEM: BRAKES: BRAKE PEDAL ASSEMBLY; FMVSS 105.VEHICLE DESCRIPTION: VANS EQUIPPED WITH VACUUM POWER BRAKES.NOTE: FMVSS 105 REQUIRES THAT HYDRAULIC BRAKE SYSTEMS HAVE AN EMERGENCY FEATUREWHICH STOPS THE VEHICLE UNDER SPECIFIED CONDITIONS. ALL HYDRAULIC BRAKE SYSTEMSARE DESIGNED WITH A SPLIT SYSTEM. EACH SPLIT WORKS INDEPENDENTLY FROM THE OTHER.THE PARTIAL SYSTEM FAILURE TEST OF THE FMVSS IS PERFORMED WITH ONE OF THE SPLITSYSTEMS INOPERATIVE.
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