Peterbilt 579 repair in Miami Gardens
Owner-operators pick the 579 for the long haul, and plenty of them run out of the Hialeah and Medley yards. A 579 that sits is a truck payment with no income. We diagnose it, quote it in writing and get it rolling again.
What we see on the 579
Emissions faults and derate
The PACCAR MX-13 and other modern diesels are known for NOx sensor, DEF and DPF faults. We read the codes, test the sensors and fix the real cause.
Diesel diagnosticsCoolant loss or EGR issues
We often see coolant loss tied to EGR cooler or hose leaks. Miami heat makes a weak cooling system show up fast.
Diesel mechanicAir suspension leaks
Cab and chassis air bags are known to crack and leak over time. The truck sits crooked or the compressor runs more than it should. We find the leaking part and replace it.
Semi truck repairAir dryer and brake chamber problems
Humid Miami air pushes a lot of water through the air system. A worn dryer lets moisture in, and the chambers and valves pay for it. We service the dryer and check each chamber.
Air brake serviceDash warnings and electrical faults
The 579's electronics are known to throw warnings from a bad ground or a chafed wire. We trace the circuit instead of swapping modules.
Diesel diagnosticsWheel seal leaks
A leaking wheel seal contaminates the brakes and fails an inspection. We replace the seal and check the bearings.
Semi truck repairMaintenance by mileage
Engine oil and filter, Grease all fittings, Brake adjustment check, Air bag and air line inspection
Everything in PM A, Fuel filters, Air dryer cartridge, Coolant test and belt check
Everything in PM B, Overhead valve adjustment, if due, Transmission and rear-end fluid, Aftertreatment inspection
Brake system, Steering and suspension, Tires and wheels, Lights, frame, fifth wheel and exhaust