Heavy-Duty Truck Diesel Engine Repair Services in North Andover, MA

About Our Heavy-Duty Diesel Engine Repair, Rebuild, Overhaul & Conversion Services

Many engine problems begin with a check engine light or minor performance change before progressing into major failures. Our technicians identify the underlying cause early, helping customers make informed repair decisions and avoid unnecessary downtime. Freedom Truck Repair offers engine repair, rebuild, overhaul, and engine conversion services, helping fleet managers and owner-operators maximize uptime while protecting their investment.

Our Master ASE Diesel Technicians perform everything from advanced engine diagnostics and in-frame repairs to complete overhauls and engine conversions. For customers requiring complete engine overhauls, we specialize in Mack and Cummins engines, allowing us to complete these projects more efficiently while maintaining the highest quality standards.

During our engine repair, rebuild, overhaul, and conversion services, we provide:

• Check Engine Light & Engine Diagnostics: We perform comprehensive diagnostics to identify performance issues, internal engine concerns, cooling system failures, fuel system problems, and electronic faults before recommending repairs.
• Engine Repairs: We repair failed engine components identified during diagnostics, including cylinder heads, injectors, turbochargers, water pumps, gaskets, seals, and other critical systems to restore dependable engine performance.
• In-Frame Engine Rebuilds: When appropriate, we rebuild worn engine components without removing the engine from the chassis, extending engine life while minimizing downtime and repair costs.
• Complete Engine Overhauls: We perform complete overhauls for Mack and Cummins diesel engines, replacing worn internal components and restoring factory-level performance using proven rebuilding procedures.
• Engine Conversions & Replacements: We replace damaged engines or perform engine conversions when a different powerplant offers the best long-term solution for your truck and application.
• Cooling & Lubrication System Repairs: We inspect and repair cooling and lubrication systems to protect your rebuilt or repaired engine from premature wear, overheating, and future failures.
• Performance Testing & Final Verification: Following major engine work, we verify engine operation, confirm fault codes have been resolved, check system performance, monitor operating data, and confirm the repair has been completed successfully.

Why Massachusetts Chooses Freedom Truck Repair for Engine Repair, Rebuild, Overhaul & Conversion

Major engine work requires experience, precision, and careful attention to detail. Our technicians take the time to accurately diagnose engine problems and recommend the repair option that makes the most sense for your truck, your budget, and your long-term operating goals.

Here's what sets us apart:

• Experience: Our technicians bring more than 40 years of dealership experience repairing, rebuilding, and overhauling heavy-duty diesel engines.
• Engine Expertise: From in-frame repairs to complete Mack and Cummins engine overhauls, we provide dealership-level engine services backed by advanced diagnostics and proven repair procedures.
• Honest Communication: We thoroughly explain your engine's condition, outline your repair options, and recommend the solution that provides the greatest long-term value without unnecessary upselling.

Contact Us About Engine Repair, Rebuild, Overhaul & Conversion:

Call 603-494-1383!

Whether your truck needs a minor engine repair or a complete overhaul, Freedom Truck Repair has the experience and equipment to get the job done right. Contact us today to schedule an inspection and keep your truck working at its best.

FAQs

How Do I Get to Freedom Truck Repair in Massachusetts?

Our shop at 30 Old Clark Rd, North Andover, MA 01845, is conveniently located just minutes from I-495, with quick access from I-93 and Route 114, making it easy for owner-operators and fleets to reach us when engine problems threaten costly downtime. From I-495, take Exit 99 toward Route 114 and follow local roads to Old Clark Road.

We're located near Lawrence Municipal Airport (LWM), Lawrence General Hospital, and Merrimack College, making Freedom Truck Repair easy to find for complete engine diagnostics, rebuilds, overhauls, conversions, and major diesel engine repairs.

What Areas Do You Serve for Engine Repair, Rebuild, Overhaul & Conversion?

We proudly provide engine services throughout West Newbury, Haverhill, Newburyport, Amesbury, Merrimack, Groveland, Andover, North Andover, Lawrence, Danvers, Plaistow, Seabrook, Salem, and surrounding communities across Massachusetts and southern New Hampshire.

How Do I Know If My Engine Needs a Rebuild or an Overhaul?

Excessive oil consumption, low compression, persistent power loss, knocking noises, excessive blow-by, or repeated internal engine failures may indicate that a rebuild or overhaul is the most cost-effective solution. We perform a thorough inspection before recommending any major engine work.

Do You Overhaul All Diesel Engine Brands?

We repair a wide variety of heavy-duty diesel engines, but we specialize in complete engine overhauls for Mack and Cummins engines. Focusing on these platforms allows us to complete overhauls more efficiently while maintaining exceptional quality and turnaround times.

Why Is My Check Engine Light On If My Truck Still Drives Normally?

Many check engine lights and performance problems share similar symptoms. To find the root cause, you need technicians to diagnose it with thorough testing and live data before recommending repairs, helping customers avoid unnecessary parts replacement.

How Can I Schedule Engine Repair or an Overhaul?

Call Freedom Truck Repair at 603-494-1383 to schedule your engine inspection. Our experienced technicians will evaluate your engine, explain your repair options, and recommend the best solution to maximize reliability and minimize downtime.