Commercial Truck Transmission Service & Repair
A commercial truck’s transmission operates under immense stress—handling high torque, steep grades, and constant stop-and-go heavy hauling. Whether your fleet runs manual, automated manual (AMT), or fully automatic heavy-duty transmissions (such as Eaton Fuller, Allison, Volvo I-Shift, or Detroit DT12), our facility delivers expert maintenance, clutch adjustments, electronic diagnostics, and complete bench overhauls to keep your rigs pulling without delay.
Warning Signs of Truck Transmission Distress
Transmission faults in heavy-duty commercial rigs quickly escalate into catastrophic driveline damage if left unaddressed. Bring your truck in if your drivers report:
Gear Slippage or Unintended Neutral Drops: The transmission pops out of gear while pulling heavy payloads or under hard acceleration.
Delayed Shift Engagement: Hesitation, harsh clunking, or searching for gears in automated manual or automatic gearboxes.
High Operating Temperatures: Fluid temperature gauges creeping into the warning zone, indicating high friction or cooler flow restrictions.
Heavy Clutch Grinding or Dragging: Difficulty engaging gears from a stop or a pedal that stays low to the floorboard in manual trucks.
Fault Codes & Shift Lockouts: Transmission Control Module (TCM) diagnostic trouble codes resulting in “Check Trans” warnings or severe engine derate.
Automated Manual (AMT) vs. Automatic vs. Manual Systems
Expert Calibration: Modern AMT gearboxes rely heavily on electronic clutch actuators and pneumatic shift controls. Our shop uses dealer-level diagnostic software to recalibrate clutch engagement points and shift parameters after every major transmission service.
Manual Gearboxes: Focus on heavy-duty clutch adjustment, input shaft bearing wear, and synchronizer longevity under high-torque loads.
Automated Manual (AMT): Focus on electronic actuators, air line moisture check (for shift cylinders), and clutch position sensor recalibration.
Torque-Converter Automatics: Focus on torque converter lockup integrity, valve body cleaning, and auxiliary fluid cooler efficiency.
Keep Your Hauling Fleet on the Road
Don’t let gear or clutch failures slow down your business operations. Contact our commercial service division today to schedule a transmission inspection or service.