Hard starting when cold
Glow plugs or their controller are the usual cause, and mountain winters find them out quickly.
Diesel trucks
Diesel Engine Repair in Nederland
Power Stroke, Duramax and Cummins pickups get the same inspect-first treatment as everything else, from hard cold starts to lost power on the grade.
Talk diesel with us — (720) 303-4784Signs it is time
Diesels are tough, but the systems around the engine need attention. Watch for these.
Lost power towing up a grade
Boost leaks, a sticking turbo vane or a clogged filter can all choke a diesel under load.
Black or white smoke
Black usually means too much fuel or too little air; white can point to injectors or coolant.
A regeneration warning that keeps returning
The particulate filter is not clearing, often because of short trips or an upstream fault.
Rough idle or a knock
Injector problems show up as uneven running and are best caught before they cause damage.
Diesel work, handled in house
Diesel diagnosis follows the same rule as everything else: test, confirm, then repair. Fuel pressure, injector balance, boost and exhaust back-pressure are measured, and the emission control systems are checked for the fault that is actually setting the warning.
Common jobs include injectors, glow plugs, turbochargers, EGR valves and coolers, and particulate filter faults. You get a written explanation of what failed and why, so the same problem is less likely to return.
Diesel maintenance matters too: fuel filters, water separators, coolant condition and oil changes with the specified diesel-rated oil.
What to mention when you call
Tell us the engine, the mileage and what you notice: hard starts, smoke colour, lost power under load or a warning on the dash. Mention whether you tow and how often the truck makes short trips. Those habits point to specific systems.
If the truck has aftermarket parts or tuning, say so on the call. Modifications change how some faults show up and which tests make sense to run first. A list of what was changed, and when, is even better than a description from memory.
Common questions
Do you work on all diesel pickups?
Light-duty diesel pickups and SUVs, including the common Ford, GM and Ram engines. If yours needs something outside that, we will say so on the phone.
Why does my DPF keep clogging?
Short trips that never get the exhaust hot enough are a common cause. Faulty sensors or an EGR problem upstream can also add soot. We find which applies.
Can a diesel be damaged by short trips?
Short trips keep the exhaust too cool for the particulate filter to clean itself, and they let moisture and fuel build up in the oil. An occasional longer drive at highway speed helps, and so do correct service intervals.
Get your diesel looked at locally
Call with the symptoms and the engine model. We will plan the visit, line up the right tests and tell you what the free inspection will cover before you drive in.