Diesel Repair Lakewood, CO for Trucks That Live in Traffic
For diesel repair, Lakewood owners have an easy drive: our Golden shop sits about 5.5 miles west of town center, straight-line, out 6th Avenue or Colfax. We fix Powerstroke, Duramax and Cummins trucks that spend the week in metro traffic, where short trips and long idles cause problems a highway truck rarely sees.
| What you notice around town | What is usually behind it |
|---|---|
| A regen or exhaust filter message that keeps coming back | Regens cut short by short trips, or an injector, EGR or sensor fault making extra soot |
| Reduced power after a week of errands | A DPF loaded past what a normal regen can clear |
| A DEF warning or countdown on the dash | Fluid quality, a heater, the pump or a NOx sensor on the SCR side; see DEF system repair |
| Hard start or rough idle on a cold morning | Glow plugs or intake heater, fuel supply, or injectors |
A diesel wants heat and a long run. Metro traffic gives it neither.
Modern diesel exhaust systems clean themselves with heat. The DPF traps soot and burns it off during a regeneration, and that burn needs high exhaust temperature and a long, unbroken stretch of steady driving to finish. A truck that runs down Wadsworth to the hardware store and back rarely gets either.
It shows up slowly: regen messages, falling fuel mileage, then reduced power. Our DPF repair work starts by asking why it loaded up, because a plugged filter is often the symptom of a problem farther upstream.
Five stars from a metro towing company
A tow operator's review, copied exactly as he posted it.
319 reviews
- Customer
- Brian Rothlisberger
- Business
- Bear Creek Towing LLC
Best place in the Denver metro area for Diesel Truck Repairs. Five Stars everytime! Recently had a bunch of work done and I'm very satisfied with the results. Warranty work is also top notch! Thanks Jeremiah, Mel and the rest of the crew. Appreciate all you do. Brian Rothlisberger, Bear Creek Towing LLC.5 STARS
What your kind of Lakewood driving does to the truck
Four Lakewood routines and what each leaves behind.
Five minutes out, five minutes back
The exhaust never gets hot enough for the DPF to clean itself. When the truck starts an active regen and you park two minutes later, the job is left half done, and soot stacks up trip after trip.
- Regen messages that repeat every few days
- Fuel mileage drifting down
- We check soot load, sensor readings and regen history
Colfax, Wadsworth and Kipling at rush hour
Crawling between lights means low load, cooler exhaust and more soot per mile, and the EGR system feeds part of that exhaust back into the intake. Over time the EGR valve and cooler coat up.
When the cooler itself starts leaking coolant, it is time for EGR cooler replacement, not another bottle of coolant.
- Lumpy idle at a red light
- Coolant dropping with no puddle
- We check EGR valve operation, the cooler and intake buildup
Hours running, zero miles moved
Work trucks that idle all day for cab heat or tools make almost no exhaust heat. Long idling can let unburned fuel slip past the rings and thin the oil, and it loads the DPF faster than the odometer suggests.
- Oil level creeping up between changes
- Regens far more often than the mileage explains
- We check oil condition, injector balance and engine hours against miles
Parked all week, working hard on Saturday
A truck that sits in traffic all week and then hooks up a camper for a run west gets a hard switch. The cooling system, transmission and turbo go from barely working to working hard, and whatever the week left behind shows up on the first long climb.
If the needle climbs with the camper on, get to a safe pull-off and let the engine idle. If it keeps rising at idle, shut it off and call us.
- Temperature climbing with a load behind it
- A flashing tow/haul or O/D light on a Ford, or any slip or flare under load
- We check cooling, transmission fluid and boost before the next trip
Head west on 6th Avenue and you are nearly at the bays
From most of Lakewood, US-6 runs straight west toward Golden, and Colfax parallels it a little north. The shop is at 16051 W 4th Ave, on the east side of Golden just off US-6.
- Most diagnosis and repair is drop-off
- US-6 keeps most of the drive off the stoplight grid
- Call ahead and tell us what the dash is showing
Leave it on your way west, hear back with findings
Close is good. Thorough is the point.
Call with the symptoms
Tell us what the dash says and how the truck is driven. We answer the phone.
Drop it in the morning
Leave it at the shop on the way to work.
We test the whole truck
Our diesel diagnostics chase the warning on the dash first, then we go over the rest of the truck too.
You decide what happens
We call with what the soot, sensor and EGR checks turned up. You pick which repairs happen, and which can share labor if done together.
A plugged DPF gets fixed by finding what plugged it, and the emissions system stays on the truck.
What decides the cost of a city-driven diesel repair
The same warning light can mean a sensor or a filter, so we price the job after testing. These move the number.
| Factor | Why it matters |
|---|---|
| How far the DPF loaded | A forced regen, a cleaning or a replacement are very different jobs |
| What caused it | An injector, EGR or sensor fault has to be fixed too, or the new filter loads the same way |
| What else turns up | We go over the whole truck and tell you which findings are urgent and which are not |
| Combining repairs | Work in the same area can share labor when done together |
Which trucks carry the regen hardware
Not every diesel in a Lakewood driveway has a DPF to plug.
Ford Powerstroke
The 6.4 was the first Super Duty diesel with a DPF, and the 6.7 added DEF. The HEUI 7.3 and 6.0 have no DPF, though a 6.0 that idles a lot works its EGR cooler hard.
Powerstroke repairChevy and GMC Duramax
The LMM brought the DPF in 2007.5, the LML added DEF and the L5P carries both. On a metro-driven LMM, LML or L5P, our diagnosis checks the exhaust side early.
Duramax repairRam Cummins
The 6.7 arrived in 2007.5 with a DPF, and later trucks added DEF. The 5.9 has neither, so knowing which side of that line your truck sits on tells us where diagnosis starts.
Cummins repairWhat Lakewood owners ask us
Regens, warnings and getting the truck to Golden.
Both. Oil and filter service can be booked around your work week. Diesel repair is where the shop earns the drive from Lakewood, though: regen trouble, fuel system faults and problems another shop could not pin down.
Usually because short Lakewood trips keep interrupting it, so the DPF never finishes cleaning. It can also be an injector, EGR or sensor fault making extra soot, which is why our diesel repair starts with the cause before anything gets cleaned or replaced.
A regen message alone often means the truck wants a longer, steady drive. Reduced power, or a message that comes right back, is different: a DPF loaded too far can need cleaning or replacement instead of a regen.
Most diagnosis and repair work is drop-off. Expect to hear back on the diagnosis within one to three days, depending on how busy the bays are. Then we call with findings and options, and you choose what we touch before any work starts.
Tell us what your truck is doing before you drive in from Lakewood
Send the year, the engine and what you are seeing, and we'll get back to you as quickly as we can.
- Year, make and engine
- What it is doing, and when it started
- Any codes or recent repairs
Rather talk it through? Call (303) 808-1563
Regen light on again in Lakewood traffic? Bring it west.
Call and tell us what the dash is saying, or use Request Service to send the details. Or drop us a line right here from the website and we'll get back to you as quickly as we can.