1983 GMC P6T042 Recalls (2)

Campaign:

84V068000 on 06/10/1984

Component:

Service brakes, hydraulic:foundation components:master cylinder

Manufactured:

11/30/1979 - 02/28/1983

Affected:

32,010

Defect:

Unwanted air is being drawn into the brake system when brake pedal is released. this is due to the use of the bendix master cylinder in combination with the bendix hydrovac.

Correction:

Dealer will check to see if vehicle is equipped with a bendix master cylinder. if so, dealer will install a tube and hose assembly and repair brake system. if needed, a new wagner master cylinder will be installed.

Notes:

Vehicle description: medium trucks equipped with single hydraulic brakesystems.system: service brakes; hydraulic system.consequences of defect: the combination of this defect along with everyday useand normal wear, could result in decreased brake performance and eventual lossof brakes. an accident could result.

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Campaign:

84V134000 on 11/08/1984

Component:

Service brakes, hydraulic:power assist:hydraulic

Manufactured:

10/31/1981 - 03/31/1984

Affected:

1,436

Defect:

Vehicles have a primary and a reserve braking system. if the primary brake system booster fails, under some circumstances the reserve system may also malfunction and braking ability will be impaired.

Correction:

Dealer will install a new reserve brake control module at no cost to owner.

Notes:

Vehicle description: school buses and forward control chassis trucks equippedwith hypower dual hydraulic brake systems.system: service brakes; hydraulic brake system, reserve brakes systemelectronic control module.consequences of defect: a reduction of braking ability in a situation whenminimum stopping distance is required could result in an accident without priorwarning.

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