Top-Tier Engine Repair & Replacement in Carbondale, CO
An engine issue can stall your day, your job, or your entire fleet. That’s why our team brings precision, transparency, and serious know-how to every engine we service. At JW Diesel & Automotive, we specialize in diesel diagnostics and full-scope repairs, from drivability concerns to complete replacements. With tools that match the dealership and a reputation built on doing things right, we’re here to earn your trust, one repair at a time.
When Your Engine Talks, We Listen
Your engine is the heart of your vehicle, and like any heart, it gives you signs when something’s wrong. Strange noises, reduced fuel economy, hesitation, or dashboard lights are all your truck’s way of saying, “Help.” Ignoring those signals can turn a simple repair into major damage. That’s where we come in.
Common engine symptoms we diagnose and repair:
- Check engine light illumination
- Engine misfires or rough idle
- Knocking, ticking, or rattling noises
- Poor acceleration or fuel economy
- Overheating or coolant loss
- Hard starting or no start
- Smells from oil leaks or overheating
- Smoke from the tailpipe or under the hood
If you’re unsure what’s going on, don’t guess. Bring it in. We’ll pinpoint the issue and walk you through the solution.
What Causes Engine Failure?
Our Expert Engine Services, Start to Finish
At JW Diesel & Automotive, we don’t guess, we diagnose. Our team uses advanced diagnostic tools and deep mechanical expertise to uncover engine issues and deliver honest, lasting repairs. We work on diesel platforms like Cummins, Duramax, and Powerstroke, as well as gas engines, handling repairs and replacements for the engines that power your work. Here’s what we offer:
Engine Diagnostics
Misfire Diagnostics & Repair
Engine Tune-Ups
Starting & Charging Repair
Struggling to start or losing battery charge? We test and repair starters, alternators, wiring, and relays, making sure your truck fires up fast and holds power like it should every time.
Fuel System Repairs
Exhaust System Diagnostics
Excess noise? Failed emissions test? We diagnose leaks, replace O2 sensors, and fix clogs or damaged components to reduce restrictions and get your exhaust flowing clean again.
Cooling System Repairs
Overheating is no small issue. We service or replace pumps, hoses, radiators, and thermostats to maintain optimal temps and protect your engine in both heat and altitude.
Gasket & Seal Repairs
Engine Replacements
Some engines are past the point of repair. We remove your old unit and install a remanufactured or factory-matched replacement with precision and care, testing every detail for long-term reliability.
Preventive Maintenance
Preventative maintenance, like timely oil changes, coolant flushes, and fuel filter replacements, is the key to engine longevity. Ask us about customized maintenance schedules for your driving style and mileage.
Proven Engine Repair. Real Diesel Expertise.
You don’t trust just anyone with your engine. At JW Diesel & Automotive, we earn that trust with high standards, diesel know-how, and unmatched automotive services.
Certified to the Core
Ford- and ASE-certified with deep diesel expertise—our team’s training shows in every bolt we turn.
Diagnostics that Dig Deeper
We use OEM-grade tools to diagnose fast and accurately—saving you time, stress, and unnecessary repairs.
Only Quality In, Only Quality Out
We install OEM or better parts for every job, from sensors and seals to complete engine replacements.
Drop Off, Tow In, Count On
No appointment needed. Can’t drive in? Our partner Shaun’s Towing gets your truck to us safely.
Warrantied Work, Community-Focused Service
Everything we do is backed by a 12-month/12,000-mile warranty, and built with the same honesty we bring to the Carbondale community.
Backed by Warranty
We stand behind our work with a 12-month / 12,000-mile warranty on parts and labor.
JW Diesel & Automotive
Diesel strong. Fleet ready. Driven to be the best.
Restore Power. Regain Confidence. Book Your Engine Service Today.
Engine trouble can shake your trust in your vehicle, but it doesn’t have to stay that way. At JW Diesel & Automotive, we combine certified expertise, top-tier tools, and a no-nonsense approach to get your truck back to peak performance.
Stop by our shop at 794 Industry Place, Carbondale, CO 81623 or reach out by calling (970) 510-5157. or texting (970) 510-6344. We serve Carbondale, Glenwood Springs, New Castle, Grand Junction, Eagle, Aspen, and the greater Western Slope, keeping trucks strong, and drivers confident.
Driven to be the best.