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PJ Diesel
Our ServicesServing Berea

Diesel Engine Repair in Berea, KY

Diesel engine repair is finding and fixing problems in a diesel's engine, fuel system, injectors and turbo so the truck starts, pulls and runs the way it should.

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Rated 5 on Google
Areas served
Berea and Madison County area
Contact
Call (859) 452-9743

What's Included

  • Full engine diagnostics
  • Injector and fuel system service
  • Turbocharger repair and replacement
  • Head and block work
  • Performance tuning

/REVIEWS

WHAT OUR CUSTOMERS SAY

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  • If you own a diesel anywhere near Berea, KY, save yourself the trouble and call Preston Jones at PJ Diesel. I brought him my 2021 Silverado Duramax (L5P) and the whole experience was as good as it gets. Preston is honest and upfront with you from the first conversation. He got back to me fast every time I reached out, and the turnaround on my truck was quick. He knows these trucks inside and out, and his pricing is fair. He came in less expensive than a lot of other shops, and the work is excellent. What really sets him apart is how he treats his customers after the job is done. Any time I've wanted to pick his brain about my truck since then, he's been glad to share what he knows. My truck is running better than it ever has. I'm in Richmond, and I would've driven a lot farther than that for work this good. A reliable diesel mechanic you can trust is hard to find, and I couldn't ask for anything better. I'd recommend PJ Diesel to anyone in Madison County or beyond.

    L

    Logan Noe

Diesel Engine Repair Available In

We offer diesel engine repair to customers across the region. Tap any area for full local details.

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About Diesel Engine Repair

Common questions and tips from our work with Berea customers.

What are signs my diesel engine needs repair?
Watch for hard starts, rough idle, a drop in power when towing, more smoke than usual, a new knock or whistle, rising coolant temperature, or a sudden drop in fuel mileage. A check-engine light or a derate warning also means something needs attention. These symptoms can come from fuel, air, emissions or internal engine problems, so a proper diagnosis comes before any parts are replaced.
Why is my diesel blowing black or white smoke?
Black smoke usually points to too much fuel for the air available, often from a leaking injector, a boost leak, a dirty air filter or a turbo problem. White smoke can mean unburned fuel from a cold engine or bad glow plugs, or it can mean coolant getting into the cylinders, which is more serious. Note when the smoke happens and what color it is, then have it checked.
Should I repair my turbo or replace it?
It depends on what failed. A boost problem can come from a leaking hose, a stuck wastegate or vane, or a bad sensor, and those can be fixed without a new turbo. Shaft play, damaged fins or oil leaking through the seals usually mean the turbo needs to be rebuilt or replaced. Finding why it failed, such as an oil supply problem, matters so the new one lasts.

Tip

Keep fresh fuel filters on a diesel

Diesel injectors and high-pressure pumps are built to tight tolerances, and water or dirt in the fuel can damage them. Change fuel filters on the schedule in your owner's manual, and sooner if you buy fuel from many different stations or tow often. Drain the water separator when the dash light comes on. Clean fuel protects some of the most expensive parts on the engine.

FAQ

FREQUENTLY ASKED QUESTIONS

Have your truck's year, make, model and engine size on hand. If you're getting a check-engine light or you've heard a new sound, describe it. If you know your current mileage, that helps too. We'll ask a few questions to understand the problem before you drive in.

We're open 24 hours, 7 days a week, but it's always a good idea to call first. That way we can talk through the issue and make sure we have what we need to get your truck running right when you arrive.

We plug into your truck's computer, read all the fault codes, and run tests to isolate the real problem. We'll also inspect the engine, fuel system and turbo by hand. Then we explain what we found and what it costs to fix it before we do any work.

Diesel engines are different from gas engines. The fuel system, the turbo, the injectors, the fuel pressure all run different. We work on all brands, including equipment and semis, so we find problems other shops miss and get your diesel running strong.

We offer service for all brands, not just Duramax, including equipment and semis. Call and tell us what you're running.

We're based in Berea and serve the Madison County area including Richmond, Waco and surrounding communities. We're open 24 hours, so people drive from farther out when they need diesel work they trust.

Fair means we tell you the truth about what your truck needs, quote you honest labor and parts, and don't pad the bill. We aim to come in well versus other shops and deliver work that lasts. Call with your truck's issue and ask for a quote.

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