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Commercial truck guides, maintenance tips, and industry insights for semi truck owners and fleet managers.
Commercial truck guides, maintenance tips, and industry insights for semi truck owners and fleet managers.
How to set, check, and maintain correct truck tire pressure for steers, drives, and trailers, why it matters, and how to handle problems on the road.
Most semi tire blowouts trace back to under-inflation, heat, and worn casings. Here's how owner-operators and fleets prevent them and what to do when one happens.
Gladhand problems and air line failures are a top roadside cause of a trailer that won't release its brakes or build air. Here's how to spot them, what causes them, and how to get rolling fast.
Stiff cranking, a leaning trailer, or a leg that won't retract are signs your trailer landing gear needs repair. Here's how to spot trouble early and what causes it.
Sagging trailers, constant air loss, and rough rides usually trace back to a few common air suspension failures. Here's what goes wrong and how trailer suspension repair fixes it.
Most trailer light problems trace to corrosion, ground faults, or a bad connection at the 7-way plug. Here's how to diagnose and fix the common ones.
A lit trailer ABS light means the trailer's anti-lock braking system has logged a fault and disabled ABS on that axle. Here's what to check and why it matters at a DOT inspection.
An over-stroked push rod, a longer brake pedal, uneven wear, and pulling under braking signal slack adjusters out of adjustment. How to spot and confirm each.
Brake violations are among the most cited problems in roadside inspections. Here's how owner-operators and fleets prevent CSA brake violations and out-of-service orders.
A practical, point-by-point DOT brake inspection checklist for commercial trucks and trailers, covering pushrod stroke, linings, air loss, ABS, and the violations that put rigs out of service.
A practical guide to finding and fixing an air brake leak on a semi truck, from listening for hisses to pinpointing fittings, glad hands, and chambers before it becomes a roadside breakdown.
What puts a truck out of service for air brake violations at a DOT inspection, the 20% defective-brake rule, and how to avoid a roadside shutdown.
Learn the early turbo failure signs on a semi truck — power loss, blue or black smoke, whining noise, and oil consumption — and what each one means before it gets expensive.
A practical troubleshooting guide for when a diesel truck won't start, cranks but won't fire, or is hard to start cold, plus when to call for mobile help.
Semi truck overheating usually traces to low coolant, a clogged radiator, a failing water pump, or a stuck thermostat. Here are the causes and how to prevent them.
Diesel fault codes pair an SPN with an FMI to pinpoint a fault and its failure type. Learn how to read them, which are critical, and when to call for repair.
Rough idle, power loss, a check-engine light, and EGR fault codes are the most common EGR valve symptoms on diesel trucks. Here's how to spot a failing valve early.
DEF system warning lights, derates, and dosing faults explained for truckers and fleets, plus what DEF system repair actually involves and how to avoid downtime.
A DPF regen that stalls usually points to a sensor fault, a clogged filter, low exhaust temps, or active fault codes blocking the cycle. Here's how to diagnose and fix forced regen problems.
Engine derate is your truck's ECM cutting power to protect itself or force a repair. Here's what triggers it, the difference from limp mode, and how to respond.
Should you call a mobile mechanic or tow to a shop? The answer turns on repair complexity, location safety, and DOT rules, not just cost. Here's a practical decision framework and a repair-type table for Sacramento drivers running I-80 and I-5.
A practical decision guide for truck operators choosing between repairing and replacing air brake components, built around CVSA out-of-service criteria, FMCSA rules, and the factors that actually drive total cost on Sacramento freight runs.
Modern diesel diagnostics speak in fault codes, not symptoms. Here's what a fleet owner should understand about the J1939 data bus, SPN/FMI codes, derate triggers, and choosing between a mobile call and a tow.
A practical preventive maintenance checklist organized by interval, not mileage. Build a repeatable PM program covering driver pre-trips, weekly yard checks, monthly inspections, and the annual DOT inspection while staying compliant with FMCSA rules.
Trucks don't break down randomly near Sacramento. They fail in predictable spots: the Auburn grade on I-80, the hot valley stretch of I-5, and the stop-and-go interchange. Here's where, why, and how to prepare.
Five warning signs mean stop and call for roadside repair instead of pushing for the next exit: overheating, sudden air-pressure loss, low oil pressure, charging failure, and wheel-end trouble. Here's how to read each one on I-5 and I-80.