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Diesel Engine Repair & Maintenance at A&M Diesel Truck Repair L.L.C, Mercer, PA

Diesel Engine Repair & Maintenance in Mercer, PA

Diesel engine repair and maintenance keeps the engine that pulls your load making power, starting in the cold and running clean. A&M Diesel Truck Repair L.L.C repairs, rebuilds and services diesel engines in trucks, semis and pickups at our Mercer shop off US 62 and US 19, and on the road 24/7.

Call (330) 503-1372

What Is Diesel Engine Repair & Maintenance?

Diesel engine repair and maintenance is the care of the engine itself, from routine service to a full rebuild. It covers the fuel system, the turbocharger, the cooling system, the lubrication system and the parts inside the block. A diesel makes its power from compression and heat, so small problems with fuel, air or oil show up fast.

Maintenance keeps oil, filters and fluids fresh and catches wear early. Repair fixes what has already failed, such as an injector, a turbo or a head gasket. When the engine is worn through, a rebuild or overhaul brings it back to spec.

Why Diesel Engine Repair Matters in Mercer, PA

Diesel engines around Mercer face cold starts through long winters, with January averaging about 25 degrees in the borough. Cold oil, weak batteries and tired glow plugs make a hard start harder. An engine that struggles every morning wears its starter, its batteries and its own internal parts.

Trucks here also climb the grades of the Allegheny Plateau on I-80 and run long stretches of I-79. Hard pulls with a full load heat the engine and the turbo, and any weakness in cooling or fuel delivery shows up there first. Keeping the engine healthy is cheaper than replacing one that failed on a hill.

When to Consider Diesel Engine Repair in Mercer, PA

Bring the engine in when it starts harder, smokes more, knocks or loses power. These changes rarely fix themselves, and running the engine that way can turn a part repair into a rebuild. Oil or coolant that disappears between services is another reason to call.

Fall is a smart time for engine maintenance, before the first cold snap in Mercer. High-mileage engines and engines that sat for a long time also deserve a look. If the engine was overheated even once, have it checked for damage.

Signs You Need Diesel Engine Repair

Watch for these signs that your diesel engine needs attention:

It's hard to start on cold mornings

Long cranking can point to glow plugs, injectors, low compression or fuel trouble.

There's black or white smoke

Smoke color tells a story about fuel, coolant or air getting where it shouldn't.

The engine is knocking

A new knock or rattle can mean injector, bearing or piston trouble.

My fuel mileage dropped

Burning more fuel for the same loads often means a fault inside the engine.

It's using oil or coolant

Topping off between services is a sign of a leak or internal wear.

How Our Diesel Engine Repair Works

Here is how we handle your engine:

  • Step 1: Call (330) 503-1372 or request a quote, and tell us what the engine is doing.
  • Step 2: Bring the truck in, or we come to you, for a free estimate.
  • Step 3: We explain what we found and what it will take before any work starts.
  • Step 4: Once you approve, we do the work and get you back on the road.

Fuel System and Injector Repair

A diesel lives and dies by its fuel system. Worn or sticking injectors cause rough running, smoke, knocking and poor mileage. We test injectors, fuel pumps and fuel lines and replace what is failing.

Water and dirt in diesel fuel cause their own damage. We replace fuel filters and drain water separators as part of the job. Clean fuel protects the injectors you already have.

Turbocharger and Cooling System Repair

The turbo gives a diesel its pulling power, and it spins at very high speed on a thin film of oil. A whine, oil in the intake or a loss of boost all point to turbo trouble. We repair or replace turbos and the oil lines that feed them.

The cooling system keeps all that heat under control. We repair radiators, water pumps, thermostats, hoses and head gaskets. When an engine has overheated, we check for the damage the heat may have caused.

Engine Rebuilds and Overhauls

Some engines are worn past a simple repair. Low compression, heavy blow-by or a failed bearing can mean it is time for a rebuild. We take the engine apart, measure the wear and replace the parts that are out of spec.

A rebuild can put many more miles on a truck that is otherwise sound. We explain the work and the cost before we start. For a truck with problems beyond the engine, our Heavy-Duty Truck Repair service covers the rest of the rig.

Why Mercer Customers Choose A&M Diesel Truck Repair L.L.C

Our certified technicians bring 17 years of hands-on experience with diesel engines, and our team has repaired 3,000 vehicles. We use quality parts in every engine we touch. We honor whatever warranty the manufacturer provides for the parts we install.

You deal directly with the owner, so you know what is happening with your engine at every step. Our roadside service runs 24/7 across 200 miles, most of Ohio and Pennsylvania. Call (330) 503-1372 to talk about your engine.

DRIVEN BY TRUST, HEAR FROM MERCER TRUCKERS

Trusted by Truckers in Mercer, PA

  • Great Mechanic & Fast Service Really appreciate the mechanic who came out and fixed the sliding back door on my semi truck. He showed up when he said he would, knew exactly what he was doing, and got the job done quickly and correctly. Great service, professional, and dependable. I’ll definitely be calling him again when I need work done. Highly recommend!
    Tyler GordonGoogle review
  • Fast and friendly service. DOTed my tractor and trailer, made the necessary repairs to get me back on the road, then offered his experience on cheaper options and preventative maintenance in the future. Honest and fair. I wish more companies operated in this manner. Give them a try.
    David BatemanGoogle review
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Frequently Asked Questions

Frequently Asked Questions about Diesel Engine Repair & Maintenance

A truck that is down costs money every hour. Read the answers to common questions about our truck repair service in Mercer, PA, then call us to talk through your truck's problem.

How much does diesel engine repair cost?

The cost depends on what failed inside the engine, the parts it needs and whether it needs a repair or a rebuild. We diagnose the engine first and give you a clear quote before any work starts.

Where do you do diesel engine repair?

We repair diesel engines at our shop in Mercer, PA 16137, and our roadside service covers 200 miles. That includes Hermitage, New Castle, Butler, Oil City, Erie, Pittsburgh, Youngstown, Akron and Cleveland.

Is there a warranty on diesel engine parts?

We honor whatever warranty the manufacturer provides for the parts we install. Ask about the warranty on a part before the work starts and we will explain what it covers.

Should I repair or rebuild my diesel engine?

It depends on how much of the engine is worn and what failed. We test the engine and lay out both options, so you can make the call that fits your truck and your budget.

Why does my diesel smoke when it starts?

Some smoke on a cold start can come from glow plugs, injectors or worn rings. White smoke that keeps going can mean coolant in the cylinders, which needs checking right away.

Do you service diesel pickups as well as semis?

Yes. We work on diesel engines in semis, box trucks, hot shot rigs and diesel pickups. The same certified technicians handle all of them.

Diesel Engine Repair & Maintenance Near Mercer, PA

For diesel engine repair and maintenance in Mercer, PA, call A&M Diesel Truck Repair L.L.C at (330) 503-1372. We fix, rebuild and service diesel engines in trucks of every size, in the shop or at the roadside 24/7.

Our shop is at 160 McKinley Ave in Mercer. Bring your truck in, or tell us where it is and we will come to you.

160 McKinley Ave

Mercer, PA 16137

(330) 503-1372

Mon - Fri: 8:00am - 10:00pm

Sat - Sun: Closed

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