Mack U Series 1988

Model U Series made in 1988 by Mack got 4 recalls. There were some recalls concerningpower train, steering.

Model 1988

Recalls


CampaignManufacturerManufacturing dateType# of units affectedDate Owner notified MfgRecall Initiated byManufacturers of recalled vehicles/productsReport Recieved DateRecord Creation DateRegulation Part NumberFMVSS Number
POWER TRAIN - DRIVELINE - CENTER SUPPORT BEARING
88V085000MACK TRUCKS, INCORPORATEDfrom 11/01/1987 to 11/01/1987V (Vehicle)20305/05/1988MFRMACK TRUCKS, INC05/23/198805/26/1988
Defect SummaryClamp plates used between the drive shaft and carrier yokes may crack and could break due to improper heat treatment.
Consequence SummaryIf clamp plate breaks, yoke would fly off at detachedpoint and could injury anyone struck by flying fragments. also, the detachedinner shaft could interfere with the brake system air supply hoses and tractortires, which could result in loss of truck control and an accident.
Corrective SummaryInstall new clamping plates and capscrews in all locations as needed.
NotesSystem: drive shaft yoke clamp plates.vehicle description: heavy duty trucks.
STEERING - HYDRAULIC POWER ASSIST - HOSE, PIPING, AND CONNECTIONS
89V032000MACK TRUCKS, INCORPORATEDfrom 03/01/1987 to 09/01/1988V (Vehicle)312710/27/1989MFRMACK TRUCKS, INC03/03/198903/16/1989
Defect SummaryAn incorrect high pressure power steering hose may have been installed.
Consequence SummaryUnder certain conditions, hose could fail resulting inloss of power steering assist and possibly an accident.
Corrective SummaryReplace incorrect power steering hoses.
NotesSystem: power steering hose.vehicle description: heavy duty trucks equipped with stratoflex high pressurepower steering hose.
STEERING - LINKAGES
88V125000MACK TRUCKS, INCORPORATEDfrom 08/01/1987 to 04/01/1988V (Vehicle)640007/20/1988MFRMACK TRUCKS, INC07/27/198808/04/1988
Defect SummarySome of the nuts/bolts used to fasten the steering pitman arm may loosen.
Consequence SummaryThis would allow the pitman arm to come off the steeringgear sector shaft and result in immediate loss of steering control and a vehiclecrash could occur.
Corrective SummaryRetorque nuts/bolts where necessary.
NotesSystem: steering pitman arm.vehicle description: heavy duty trucks.
STEERING - WHEEL AND HANDLE BAR
89V086000MACK TRUCKS, INCORPORATEDfrom 08/01/1987 to 04/01/1989V (Vehicle)1600008/09/1989MFRMACK TRUCKS, INC05/22/198906/09/1989
Defect SummarySteering wheel retaining nuts may have been improperly installed and/or torqued.
Consequence Summary
Corrective SummaryRenew and retorque steering wheel retaining nuts.
NotesSystem: steering wheel retaining nuts.vehicle description: heavy duty trucks. consequence of defect: this could cause steering wheel disengagement from the steering column with loss of steering control which could result in anaccident.