1978 Mack U Series
Safety record from NHTSA: recalls, owner complaints, investigations and service bulletins.
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Vehicles › Mack › U Series › 1978
These records cover every 1978 Mack U Series. To see whether one car still needs a recall repair, decode its VIN or check it with NHTSA.
Recalls
1 recall names the 1978 Mack U Series. Newest first.
The prefabricated pinch bolt clamp at the lower steering shaft lower yoke may not perform adequately when tightened to specifications. The clamp may then deform and loss of clamping force and steering shaft disengagement may result.
Risk and remedy
Remedy
Dealer will retrofit with lower steering shaft lower yokes that provide for integral pinch bolt installation in place of previous separately fabricated clamp for the pinch bolt.
Service bulletins
Technical service bulletins and other communications the manufacturer sent dealers about this vehicle. Ask a dealer for the full document by its number.
- 10215315Programming Failure - Chassis With Cummins Engine And An Allison Transmission
- 10215312(Back Office) - Cruise Control Inoperative After Updating Software VECU5 Without ESP Package (UESP).
- 10215289Automated Manual Transmission ( AMT ) I-Shift / mDRIVE - Ribbon Harness Replacement - Speed Sensor Bolts, Possible Fault Codes P1058 - 21 Or MID 130 PID 161 FMI 1
- 10215287US10 Emission Engines - Diagnostic Trouble Code ( DTC ) SPN 1231 FMI 9 Troubleshooting.
- 10213658Emcon (Spark Assist) Engine Aftertreatment System Troubleshooting Check Sheet - US07 Emissions
- 10213652Low Oil Pressure Diagnostic Process For 11 Liter Engines
- 10213644Premium Tech Tool ( PTT ) Training Materials And Support Tools
- 10213642No Start Condition After Over The Air Programing - VECU5 No Start "Safe State"
- 10213641Temperature Sensor Troubleshooting Guide - US10+OBD13 And Newer
- 10213640Electronically Controlled Suspension (ECS) Losing Air Pressure
- 10213639Low Voltage Disconnect (LVD), Function Description
- 10213638DEF Pump Troubleshooting Guide - US10+OBD13 And Newer Emissions
- 10213637DEF Pump Cycling periodically Hours After Key Off
- 10213636Selective Catalytic Reduction (SCR) Muffler Troubleshooting Guide - US10+OBD13 And Newer Emissions
- 10213633USE FOR NEW VEHICLES (US21+OBD22 Emissions) - Intermittent Diagnostic Trouble Codes U02A3, U029D, U029E
- 10213632NOx Sensor Troubleshooting Guide - US10+OBD13 And Newer Emissions
- 10213630Mack Chassis - Vehicles Equipped With An Automated Manual Transmission Model F ( AMT-F, mDrive ), Premium Tech Tool ( PTT ) Gearbox Calibration Failure; Gearbox Calibration Operation Stops And Fails At 33% When Run With Transmission Removed
- 10213625Mack - PTO Pump Speed Calculator
- 10213612(Back Office Only) Mack Chassis - Cruise Control Inoperative After Disabling The Electronic Stability Program (ESP)
- 10213609Mack Chassis - Diesel Exhaust Fluid ( DEF ) System Cleaning/Flush After DEF Pump Failure Or System Contamination
- 10213608Mack Chassis - Bendix Vendor Configuration Program ( VCP ) Software Download Information
- 10213605Mack Chassis - Diagnostic Trouble Codes ( DTC's ) - P020113, P020213, P020313, P020413, P020513, P020613, Cylinders 1 Through 6 Injector A Open Circuit
Every Mack U Series model year
Bars are owner complaints, dots mark years with recalls. Select a year to open its report.