Mack Truck Repair in Sacramento

Macks earn their reputation — and deserve maintenance that matches it

Nobody buys a Mack casually: Granites in construction service, Anthems on the highway, Pinnacles doing regional work — trucks bought for toughness and kept for decades. Pro Truck Services is independent (no Mack or Volvo Group affiliation) and services Macks alongside the rest of Sacramento’s working fleet.

Models & engines

Anthem, Pinnacle, and Granite trucks running Mack MP7/MP8 power — platforms that share DNA with the Volvo D-series we also service, which means the diagnostic familiarity carries over.

The work

• Engine diagnostics and repair — MP-series electronics read with data, not guesses
• Aftertreatment incl. forced regens and DEF/SCR repair — vocational duty cycles make these systems work hard
• Brakes, suspension, driveline — the systems construction service actually stresses
• PM + DOT/CARB inspections in-house

Where

3036 Orange Grove Ave, North Highlands — with on-site service for jobsites and yards, and emergency response when a truck quits working. English and Russian spoken.

Where diagnosis starts on a Mack

MP7 and MP8 engines with the mDRIVE automated transmission are close relatives of Volvo’s D11/D13 and I-Shift, so the same data-first approach applies: fault history and aftertreatment records before parts. Where Mack differs is the chassis and the work — Granite and TerraPro vocational units with PTO-driven bodies, heavier suspensions, and the dust, water and stop-start duty of construction and refuse routes. Body electrical added by the upfitter is a frequent source of faults, and cooling systems that run clogged with site dust are the quiet cause of grade overheating. Highway Anthems and Pinnacles are serviced like any modern linehaul tractor.

Do you work on older Macks?

Yes — pre-emissions Macks are welcome, and often simpler to keep healthy. Bring the granddad Granite.

My Mack is in a construction fleet — can you handle jobsite scheduling?

That’s our construction fleet specialty — maintenance planned around pours and phases, with on-site service where it makes sense.

MP8 aftertreatment keeps acting up — normal?

Vocational duty cycles are hard on every maker’s emissions systems — frequent low-speed, high-idle work loads DPFs fast. It’s manageable with the right maintenance rhythm; ignored, it’s a derate on delivery morning.

MP-series power, vocational duty, and the Volvo connection

Mack sits in the Volvo Group alongside Volvo Trucks, and the drivetrains are close relatives — the MP7 and MP8 share engineering lineage with the D-series, and mDRIVE is the sibling of Volvo's I-Shift. Experience transfers between the two in a way it simply does not between unrelated makes.

Where Mack differs in practice is the work it tends to do. A large share of the Macks around Sacramento are vocational — mixers, dumps, refuse, roll-off — running stop-start cycles, heavy PTO hours and constant dust. That duty cycle punishes brakes, suspension and cooling far faster than highway miles do, and it is a poor fit for maintenance intervals written around a mileage table. We would rather set intervals from how the truck actually works.

Vocational trucks also idle more, which affects aftertreatment directly. Forced regens, DPF cleaning and replacement, and DEF and SCR repair are all done here.

Do you handle the body and PTO side on a vocational Mack?

The chassis, engine, PTO engagement and the electrical supply to the body are ours; the hydraulic body itself (mixer drum drive, packer, hoist) is usually the body manufacturer’s or a hydraulics specialist’s territory, and we say which is which when we see the unit.