Engine Repair & Rebuilds in Killeen, TX

What We Do?

Restore Strength Under the Hood

Vehicles We Service

Need Routine Maintenance?

Engine Problems Require Careful Decisions

The engine must manage combustion, lubrication, cooling, airflow, timing, and exhaust movement thousands of times each minute. A problem in one area can create symptoms in another, which is why loss of power, noise, smoke, overheating, or oil use should not automatically be blamed on a single component. A failed gasket may allow coolant or compression to escape; worn rings can reduce sealing; timing problems may alter valve operation; and low oil pressure can damage bearings or camshafts. Continuing to drive with severe symptoms can turn a repairable issue into widespread internal damage. Professional testing helps determine whether the fault is external, top-end, bottom-end, or related to a supporting system. At L&H Automotive, we help drivers in Killeen, TX understand the difference between a focused repair, cylinder-head work, partial rebuild, complete rebuild, or replacement recommendation based on actual measurements and the condition of the vehicle.

Our ASE-certified technicians may use compression testing, cylinder leak-down testing, oil pressure measurement, cooling system pressure checks, borescope inspection, scan data, fluid analysis, and noise evaluation to build a clear picture of engine health. Repairs can range from sealing leaks and replacing timing components to cylinder-head service, bearing work, piston and ring replacement, or a full teardown and rebuild when appropriate. L&H Automotive considers mileage, maintenance history, heat damage, parts availability, and the condition of connected systems before recommending major work. We also explain whether supporting components, such as the cooling, fuel, ignition, or exhaust systems, must be addressed for the repair to succeed. Qualifying work may receive TechNet 36-month or 36,000-mile warranty coverage and roadside assistance. A professional plan protects your investment by preventing incomplete repairs and ensuring the engine is tested and verified before it is returned to regular use. Careful planning also helps establish realistic expectations for break-in, follow-up, and maintenance after extensive internal work is complete.

Why Choose Us?

Measured Testing Before Major Work

Why Choose Us:

L&H Automotive approaches engine work with careful diagnosis, transparent recommendations, and ASE-certified expertise. We do not suggest a rebuild simply because an engine runs poorly. We test internal condition, review the vehicle as a whole, and explain whether repair, rebuilding, or another option makes the most sense. TechNet support may apply to qualifying work.

Service Process:

We begin by documenting the symptoms, maintenance history, overheating events, fluid loss, noises, and any recent repairs. The technician scans for codes and reviews operating data, then inspects the condition of the oil and coolant, leaks, belts, hoses, and supporting systems. Based on the concern, we may test compression, cylinder leakage, oil pressure, cooling-system integrity, timing operation, or combustion gases. A borescope may be used to inspect internal surfaces without immediate disassembly. If major internal work is justified, we outline the scope before teardown and explain what additional findings could change the plan. Components are measured against specifications, and damaged or worn parts are identified. After approved repairs or rebuilding, fluids are filled correctly, startup procedures are followed, leaks and pressures are checked, and operation is verified through controlled testing.

Key Benefits:

• Repair Decisions Based on Engine Testing
• Clear Comparison of Available Options
• Attention to Supporting Systems
• ASE-Certified Internal Engine Service
• TechNet Coverage on Qualifying Repairs