11 recalls found. |
DEFECT #1 - ENGINE AND ENGINE COOLING:ENGINE
Posted on: 1979-10-12
Description
In the event of turbocharger compressor wheel failure, one or more of the four capscrews that hold the turbocharger together may be struck by parts of the compressor wheel, resulting in the capscrews being damaged. If these capscrews are damaged to the point that they allow the compressor back plate to dislocate from the turbocharger bearing housing, engine lubricating oil may be allowed to escape under pressure, contacting the engine exhaust manifold sections or turbocharger turbine housing.
Consequence
Corrective Action
Dealer will install a shield for the heads of the four capscrews, along with stronger sae 8 grade 8 capscrews, if necessary, at no cost to owner.
Notes
Vehicle description: trucks equipped with endt (b) 676, etaz (b) 673a, and etay(b) 673a engines.system: engine and engine cooling.consequences of defect: engine lubricating oil, in the presence of a source ofignition, could lead to an engine compartment fire and serious injury tovehicle passengers.
DEFECT #2 - STEERING:WHEEL AND HANDLE BAR
Posted on: 1979-10-12
Description
In the involved trucks it is possible the adjustable steering column rear mounting bracket could fail, allowing steering wheel assembly to fall down onto the operators lap.
Consequence
Corrective Action
Dealer will install an additional bracket in this area to prevent the steering wheel from dislocating in the event of a bracket failure.
Notes
Vehicle description: trucks.system: steering assembly; steering wheel and column.consequences of defect: while steering would remain functional in thiscondition, the element of surprise to operator could cause loss of vehiclecontrol and an accident.
DEFECT #3 - SERVICE BRAKES, AIR:ANTILOCK:INTERCONNECTING ASSEMBLY(WIRING)
Posted on: 1979-10-12
Description
Delays of up to about 2 seconds may exist in the brake application times to the brakes on the bogie axles in the presence of certain types of wheel speed sensor signal discontinuities or distortions that may occur as a result of sensor wire failure. This constitutes a non-compliance to federal motor vehicle safety standard no. 121, air brake systems.
Consequence
Corrective Action
Dealer will install new wheel speed sensors that incorporate improved wiring and the present bogie anti-wheel lock system will be changed to an axle-to-axle system for improved reliability.
Notes
Vehicle description: heavy trucks.system: service brakes; electrical wiring and connectors.consequences of defect: this delay in effective braking action could lead to anaccident under certain traffic conditions.
DEFECT #4 - ENGINE AND ENGINE COOLING:ENGINE:GASOLINE
Posted on: 1979-10-12
Description
The synflex-type oil pressure signal line may have been routed too close to the exhaust manifold. Excessive heat may cause the line to rupture, and oil leakage may occur.
Consequence
Corrective Action
The dealer will reroute the oil pressure signal line to eliminate potential fire hazard, without charge to owner.
Notes
Vehicle description: trucks equipped with v-8 engines.system: engine; oil pressure signal line.consequences of defect: if oil is sprayed onto the hot exhaust manifold, avehicle fire and personal injury to occupants could result.
DEFECT #5 - STEERING:LINKAGES:KNUCKLE:SPINDLE:ARM
Posted on: 1979-10-12
Description
The existing cross steering arms may have insufficient fatigue life in the neck area. This is near the boss for the cross steering tube ball joint connection. Failure of either of the cross steering levers could lead to loss of steering control of the right front wheel.
Consequence
Corrective Action
The dealer will inspect and, if necessary, install cross steering arms of improved design and greater strength.
Notes
Vehicle description: truck tractors.system: steering; steering arm.consequences of defect: loss of steering control could lead to loss of vehiclecontrol and an accident.
DEFECT #6 - ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN
Posted on: 1979-10-12
Description
The flex blade fans on the involved vehicles may develop cracks in the laminated stiffener as a result of fatigue during operation. If such a condition exists and the cracks go undetected, continued operation could cause pieces of the stiffener to break off.
Consequence
Corrective Action
Dealer will replace the original fan with a steel fixed blade fan, free of charge.
Notes
Vehicle description: trucks equipped with six-cylinder engines.system: engine cooling; fan.consequences of defect: broken pieces can be propelled outside of the fanshroud and will present an immediate danger and possible injury to personsstanding nearby.note: prior to correction, vehicle should not be serviced with the hood raisedand the engine running.
DEFECT #7 - STEERING:WHEEL AND HANDLE BAR
Posted on: 1979-10-12
Description
An improper pinch bolt and nut may have been used in the clamping of the steering shaft to the steering gear input shaft. Due to clamping force loads applied at the bolt, the nut could yield, resulting in looseness of the input shaft yoke. Should this condition go unnoticed, spline wear could cause shaft separation.
Consequence
Corrective Action
Vehicles will be inspected and, if necessary, the correct fasteners will be installed at no charge to owner.
Notes
Vehicle description: heavy trucks.system: steering; steering shaft clamp bolt.consequences of defect: this defect could cause loss of vehicle control and avehicle accident.
DEFECT #8 - SEAT BELTS:FRONT:ANCHORAGE
Posted on: 1979-10-12
Description
The involved vehicles do not conform to federal motor vehicle safety standard no. 209, seatbelt assemblies. Although the seatbelts in question performed marginally with respect to the 5000 lb. Load requirement, additional testing confirmed that the anchor could fail, allowing either the anchor to slip over the hold-down nut or the anchor to separate into two pieces.
Consequence
Corrective Action
Dealer will inspect and, if necessary, replace seat belt assemblies without charge to owner.
Notes
Vehicle description: trucks.system: interior; seat belt anchorage assembly.consequences of defect: in the event of an accident, these seat belts may notadequately restrain passengers and serious injuries may result.
DEFECT #9 - SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY:HANGER/BRACKET
Posted on: 1979-10-12
Description
A deficiency exists in the welds securing the rear spring insulator bracket to the axle housing. This is due to improper positioning of the weld, in relationship to the bracket and axle housing. Failure of the welds would cause separation of the spring insulator bracket and the axle housing, resulting in improper alignment of the affected axle.
Consequence
Corrective Action
Dealer will reweld the insulator spring bracket at no cost to owner.
Notes
Vehicle description: heavy trucks.system: suspension; tandem axle.consequences of defect: this condition could cause a loss of vehicle controland a vehicle accident.
DEFECT #10 - WHEELS
Posted on: 1979-10-12
Description
The front wheel rim clamp studs, installed on the involved vehicles, may not have been manufactured correctly, causing a brittle condition in the thread root area. The studs could eventually crack and break when wheel nuts are tightened to specifications.
Consequence
Corrective Action
The dealer will replace all suspect front wheel studs, without charge to owner.
Notes
Vehicle description: heavy trucks.system: wheels; studs.consequences of defect: wheel stud failure could cause a loosened tire assemblyand impaired vehicle control. Failure of more than one stud could causeseparation of the tire and rim assembly, causing loss of vehicle control and anaccident.note: driver may be alerted to the condition by a wobble or vibration in theaffected wheel.
DEFECT #11 - SUSPENSION:MULTIPLE AXLE
Posted on: 1979-10-12
Description
A casting deficiency exists in the lower section of the caps resulting in a reduction in the thickness of the material. Failure of a cap can allow the end of the rear spring to detach from the axle housing.
Consequence
Corrective Action
Dealer will inspect and, if necessary, replace any of the spring insulator caps found to be defective. This will be done at no cost to owner.
Notes
Vehicle description: trucks, heavy.system: suspension; insulator cap.consequences of defect: loss of vehicle control can result and lead to avehicle accident.