Mack Mr 1978

Model Mr made in 1978 by Mack got 2 recalls. There were some recalls concerningengine and engine cooling, visibility.

Model 1978

Recalls


CampaignManufacturerManufacturing dateType# of units affectedDate Owner notified MfgRecall Initiated byManufacturers of recalled vehicles/productsReport Recieved DateRecord Creation DateRegulation Part NumberFMVSS Number
ENGINE AND ENGINE COOLING - ENGINE
79V133000MACK TRUCKS, INCORPORATEDfrom 02/01/1977 to 03/01/1979V (Vehicle)2300011/02/1979ODIMACK TRUCKS, INC05/31/197910/12/1979
Defect SummaryIn 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 Summary
Corrective SummaryDealer 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.
NotesVehicle 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.
VISIBILITY - DEFROSTER/DEFOGGER SYSTEM - WINDSHIELD - HEATER CORE
79V014000MACK TRUCKS, INCORPORATEDfrom 03/01/1978 to 11/17/1978V (Vehicle)35802/02/1979MFRMACK TRUCKS, INC01/09/197910/12/1979
Defect SummaryA deficiency in the routing of the heater duct hose could allow the hose to rest against a terminal post of the accessory relay. vibration will eventually cause the terminal post to penetrate the hose fabric and short circuit the wire reinforcement and overload the circuit.
Consequence Summary
Corrective SummaryDealer will replace the portion of the existing hose that is closest to the accessory relay with an all-rubber hose.
NotesVehicle description: trucks.system: electrical; heat duct hose.consequences of defect: due to a lack of circuit breaker protection, fire andloss of all electrical circuits, including headlights, can occur and possiblylead to a vehicle accident.