Diesel Engine Repair
Diesel Engine Repair in Fraser
Plowing driveways in Granby or hauling a trailer over the pass, your diesel works hard. We diagnose it with the same care as any engine.
Talk diesel with us — (970) 535-8315Diesel Trucks Need Their Own Kind of Attention
A diesel pickup is built for work, and in Grand County that often means towing, plowing and cold starts well below zero. Those jobs are hard on injectors, turbochargers and emissions equipment. When a diesel loses power, smokes or goes into limp mode, the fix depends on finding which of those systems is at fault.
Fraser Auto Repair works on light-duty diesel trucks alongside gas vehicles, so you do not need to book weeks out at a dealer. We read the data, test the fuel and air systems and check the emissions hardware, then tell you what failed and what it will take to fix. If a repair needs a dealer software update we cannot perform, you hear that before we start, not after.
Diesel Work We Do
Common repairs on light-duty diesel pickups.
Injector testing and replacement
Balance rates and return-flow tests show which injectors are failing before you replace a full set.
Turbocharger diagnosis
Boost leaks, sticking vanes and worn bearings found and repaired.
EGR system repair
Clogged valves and coolers cleaned or replaced to restore power and stop warning lights.
DPF and regeneration issues
Soot loading, sensor faults and forced regenerations handled correctly.
Glow plug and cold-start repair
Hard starts on frozen mornings traced to glow plugs, relays or modules.
Fuel filters and water separators
Filters, separators and lift pumps maintained so contaminated fuel does not damage injectors.
Diesel exhaust fluid faults
DEF heaters, pumps and sensors diagnosed when the truck threatens a speed limit.
Diesel oil and maintenance
Correct oils and intervals for trucks that tow, plow and idle.
How a Diesel Visit Works
Describe the work it does
Tell us how you use the truck and what changed: power, smoke, starting or a warning message. That shapes the testing.
Test the systems
We scan modules, run injector and boost tests and inspect the emissions hardware. Most diesel diagnosis takes one to two hours.
Repair and verify
Approved repairs are made and the truck is road-tested under load, including a regeneration if needed, before it goes home.
Why Diesel Owners Come to Us
Same shop as your car
Gas and diesel vehicles in one place, with no dealer wait.
Tests before injectors
We prove which injectors are bad instead of selling a full set.
Work-truck mindset
We understand the truck has a job to do and plan the repair around that.
Keep Your Diesel Pulling Its Weight
Small diesel problems become expensive quickly. Call when the truck first feels off.
Book diesel diagnostics — (970) 535-8315