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Recall campaign84V120000

Recall 84V120000: 1983 GMC C6 and 3 other models

Service brakes, air › Supply › Check valve
Report received
Oct 2, 1984
Manufacturer
General motors corp.
Potentially affected
3,948vehicles
Model years
1983

Check your own vehicle. A recall applies only to vehicles within the affected build range. Enter your VIN at nhtsa.gov/recalls. Recall repairs are free at a franchised dealer.

What NHTSA recorded

The dual air reservoirs of some trucks were equipped with carbon steel springs instead of stainless steel springs, as intended. The carbon steel spring is more susceptible to rusting than the stainless steel spring. This rusting could cause the check valve to fail, causing total loss of front and rear brakes.

Remedy

The air tank will be inspected and, if necessary, the air valve will be replaced with one containing a stainless steel spring.

Affected model years

Pages for each model year show complaints, parts, mileage and other recalls.

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.