International Engine Service & Repair
Expert diagnostics, maintenance, and repair for all International diesel engines at our Sidney and Brookville, Ohio locations
About Navistar International Corporation
International Trucks, now part of Navistar, manufactures durable and efficient diesel engines. Known for innovation and reliability, International engines power a wide range of commercial vehicles with advanced technology and fuel efficiency.
Headquarters:
Lisle, Illinois, USA
Founded:
1902
Specialties:
International Engine Models We Service
A26
Applications:
- Long-haul
- Regional haul
- Vocational
MaxxForce DT
Applications:
- Medium-duty
- School buses
- Utility trucks
MaxxForce 9
Applications:
- Medium-duty
- Regional haul
- Vocational
MaxxForce 10
Applications:
- Regional haul
- Vocational
MaxxForce 13
Applications:
- Long-haul
- Heavy-duty
MaxxForce 15
Applications:
- Heavy-haul
- Severe-duty
Common International Fault Codes
SPN 94 FMI 1
Fuel Delivery Pressure Below Normal
Symptoms:
- Low power
- Hard starting
- Rough idle
Possible Causes:
- Fuel filter restriction
- Fuel pump failure
- Fuel line restriction
SPN 3055 FMI 1
DPF Ash Accumulation Above Normal
Symptoms:
- Frequent regenerations
- Power loss
- Check engine light
Possible Causes:
- High ash oil
- Engine wear
- Excessive idle time
SPN 4094 FMI 18
NOx Conversion Efficiency Low
Symptoms:
- Engine derate
- DEF consumption high
- Emissions warning
Possible Causes:
- Poor DEF quality
- SCR catalyst issue
- Dosing valve problem
SPN 2791 FMI 14
EGR Valve Controller Out of Calibration
Symptoms:
- Rough running
- Black smoke
- Poor fuel economy
Possible Causes:
- EGR valve stuck
- Controller failure
- Wiring issue
Experiencing a fault code? Our certified technicians can diagnose and repair any International engine issue.
Get Diagnostic HelpInternational Maintenance Schedule
Oil & Filter Change
Every 25,000-40,000 miles
Use Navistar approved 15W-40 or 10W-30 oil
Fuel Filter Replacement
Every 25,000-40,000 miles
Replace both primary and secondary fuel filters
Valve Adjustment
Every 200,000 miles
Adjust intake and exhaust valves to specification
DPF Cleaning
Every 200,000-300,000 miles
Remove ash accumulation through professional cleaning
Coolant System Service
Every 300,000 miles or 3 years
Flush and refill with approved extended life coolant
Air Compressor Service
Every 300,000 miles
Rebuild or replace air compressor
International Emission Systems
DPF System
Advanced DPF system with active regeneration
Maintenance Tips:
- Allow complete regeneration cycles
- Use only low-ash engine oil
- Monitor restriction levels
- Avoid excessive idling
Common Issues:
- Face plugging from oil consumption
- Incomplete regenerations
- Temperature sensor failures
- Excessive backpressure
SCR System
Selective Catalytic Reduction for NOx control
Maintenance Tips:
- Use only ISO 22241 DEF
- Keep DEF tank filled
- Check for crystallization
- Monitor catalyst efficiency
Common Issues:
- DEF injector clogging
- Pump failures
- NOx sensor issues
- Catalyst degradation
DEF System
Diesel Exhaust Fluid system with quality monitoring
Maintenance Tips:
- Store DEF properly
- Check expiration dates
- Keep tank above 1/4 full
- Use dedicated DEF equipment
Common Issues:
- Contamination
- Crystallization
- Sensor failures
- Heater malfunctions
EGR System
Exhaust Gas Recirculation with dual cooling
Maintenance Tips:
- Clean EGR cooler regularly
- Check coolant flow
- Inspect valve operation
- Monitor differential pressure
Common Issues:
- Cooler plugging
- Valve sticking
- Coolant leaks
- Sensor failures
Expert International Engine Service at Two Convenient Locations
With over 15 years of experience, Wayne Truck & Trailer is your trusted partner for all International engine repairs and maintenance.
Serving Sidney, Brookville, Dayton, Piqua, Troy, Bellefontaine, and surrounding areas