South Florida
Komatsu Excavator Won't Start? Causes, Checks and Common Problems
A Komatsu excavator that cranks but won't start, or won't crank at all, usually comes down to fuel, air, compression or electrical. Here is what our mobile mechanics check first, plus the other problems we see most on Komatsu excavator equipment.
South Florida
Why a Komatsu Excavator Won't Start
Dead or weak batteries and corroded cables, a failed starter or relay, air in the fuel system, clogged fuel filters, a bad lift pump, seat and neutral safety switches, glow plug or intake heater faults, and low compression on high-hour engines. Other searches we hear about Komatsu excavator: won't start, overheating.
600+
Service Calls Per Year
282
Reoccurring Clients
Komatsu Diagnostics
Dealer-level diagnostics plus pressure and flow testing on the Komatsu done on your job site.
Komatsu Engine Repair
No-starts, power loss, smoke, overheating and aftertreatment faults on the Komatsu repaired in the field.
Komatsu Hydraulic Pump Repair
Weak or noisy main pumps on the Komatsu diagnosed, set to spec or replaced.
Komatsu Cylinder Repair
Boom, stick and bucket cylinders on the Komatsu resealed, honed or replaced.
Komatsu Swing & Travel Repair
Swing motors, travel motors and final drives on the Komatsu diagnosed and repaired.
Komatsu Undercarriage
Links, rollers, idlers and sprockets on the Komatsu measured and replaced.
Komatsu Electrical Repair
Harness, sensor, ECM and monitor faults on the Komatsu traced and corrected.
Komatsu Welding & Line Boring
Cracked booms, sticks, buckets and egged pin bores on the Komatsu repaired on site.
Engine & Aftertreatment
Diesel, DPF and DEF repair on the Komatsu.
Main Pumps
Pump diagnostics and replacement on the Komatsu.
Boom, Stick & Bucket Cylinders
Cylinder resealing and rod repair.
Main Control Valve
Spool, relief and pilot repair.
Swing Motor & Bearing
Swing drive repair on the Komatsu.
Final Drives & Travel Motors
Travel drive repair on the Komatsu.
Undercarriage
Track, roller, idler and sprocket replacement.
Electrical & Monitor
Harness, sensor and display repair.
Buckets & Attachments
Bucket, coupler and hammer circuit repair.
CITY
Reach Out?
Need service for your heavy equipment? Our mobile diesel mechanics provide on-site diagnostics, engine repair, hydraulic service, and drivetrain repairs to keep your machines running with minimal downtime.
Yes. Our diesel mechanics provide mobile, on-site heavy equipment repair throughout South Florida. We service equipment directly at job sites to reduce downtime and avoid unnecessary transport.
We repair a wide range of heavy equipment, including excavators, loaders, backhoes, skid steers, dozers, agricultural machinery, and other diesel-powered equipment used in construction and industrial operations.
Response times vary based on location and workload, but our mobile diesel mechanics aim to provide prompt service to diagnose and repair equipment as efficiently as possible.