Engine Repair & Service
in Sachse, TX
Your engine is the heart of your vehicle. Whether it's a minor leak or a major overhaul, our ASE-certified technicians have the experience and equipment to get it running right.
Call for Engine ServiceExpert Engine Service
Comprehensive Engine Repair
for All Makes & Models
At Pro Automotive Repair, we handle the full range of engine repairs — from oil leaks and gasket jobs to timing belts, valve work, and complete top-end rebuilds. Modern engines are complex systems with thousands of moving parts, electronic controls, and precision tolerances — diagnosing problems correctly the first time requires real experience and proper equipment.
Owner Jay Boyette and our team have been solving engine problems in Sachse since 2009. We'll tell you exactly what's wrong, what it takes to fix it, and what it will cost before we turn a wrench. No guesswork, no unnecessary repairs.
Know the Signs
Common Engine Problems
Engine issues rarely fix themselves. If you notice any of these symptoms, bring your vehicle in before a small problem becomes a major repair.
Rough Idle / Misfires
If your engine shakes, stumbles, or feels uneven at idle, you likely have a misfire. Common causes include worn spark plugs, failing ignition coils, vacuum leaks, or clogged fuel injectors. Left unaddressed, misfires damage your catalytic converter and reduce fuel economy.
Loss of Power
When your vehicle feels sluggish, struggles on hills, or doesn't accelerate like it used to, something is restricting airflow, fuel delivery, or ignition timing. This could be a clogged air filter, failing fuel pump, worn timing chain, or compression loss from worn piston rings.
Strange Noises
Knocking, ticking, rattling, or whining from the engine bay are never normal. Knocking can indicate bearing wear or detonation. Ticking often points to low oil pressure or worn valve train components. These noises tend to get louder — and more expensive — over time.
Oil Leaks
Oil spots under your vehicle or a burning oil smell from under the hood signal a leak. Common culprits include valve cover gaskets, oil pan gaskets, rear main seals, and timing cover seals. Running low on oil causes accelerated wear and eventual engine failure.
Overheating
An engine temperature gauge climbing into the red is an emergency. Overheating warps cylinder heads, blows head gaskets, and can crack the engine block. Causes include coolant leaks, a failed thermostat, broken water pump, or a clogged radiator. Pull over immediately if your engine overheats.
Check Engine Light
The check engine light covers hundreds of possible issues, from a loose gas cap to serious internal engine problems. A flashing check engine light means active misfires and possible catalytic converter damage — don't keep driving. We'll pull the codes, run the diagnostics, and find the real cause.
Save Money, Stay Safe
Why Engine Maintenance Matters
Engine problems don't stay small. What starts as a minor issue compounds quickly, and the cost of repair escalates at every stage. Staying on top of maintenance is always cheaper than waiting for something to break.
Small Leaks Become Big Leaks
A weeping valve cover gasket is a $200 fix today. Ignore it, and oil drips onto exhaust components, degrades wiring harnesses, and eventually starves the engine of lubrication.
Timing Belt Failure Destroys the Engine
On interference engines, a snapped timing belt lets pistons slam into valves. A $600-$1,000 belt replacement prevents $3,000-$5,000 in catastrophic internal damage.
Overheating Warps Heads and Cracks Blocks
A $15 thermostat or a $100 radiator hose, if ignored, leads to overheating that warps aluminum cylinder heads or cracks the engine block — damage that often totals the engine.
Neglect Turns a $500 Repair Into a $5,000 Replacement
Every engine problem we see that requires a full replacement started as something smaller. Catching issues early is always the less expensive option.
Regular maintenance catches problems early. We recommend a thorough engine inspection annually — or any time you notice unusual noises, leaks, or performance changes.
Everything Your Engine Needs
Our Engine Services
From preventive maintenance to major internal repairs, we handle it all — domestic, Asian, and European vehicles.
Timing Belt & Chain Replacement
Timing belts and chains keep your engine's valves and pistons synchronized. We replace belts at manufacturer-recommended intervals and address stretched or noisy chains before they cause internal damage.
Head Gasket Repair
A blown head gasket allows coolant and oil to mix, causes overheating, and produces white exhaust smoke. We perform head gasket replacement along with cylinder head resurfacing to restore a proper seal.
Intake Manifold & Gaskets
Cracked intake manifolds and leaking gaskets cause vacuum leaks, rough idle, and coolant loss. We repair and replace intake components to restore proper engine sealing and performance.
Valve Cover Gasket & Oil Leaks
Oil leaks are one of the most common engine issues we see. We trace the leak to its source — valve cover gaskets, oil pan gaskets, front and rear main seals, or timing covers — and fix it right.
Fuel Injection Service
Dirty or failing fuel injectors cause rough idle, poor fuel economy, and reduced power. We clean, test, and replace fuel injectors, and service fuel pumps, filters, and pressure regulators.
Cooling System Repair
Your cooling system prevents overheating and catastrophic engine damage. We repair and replace radiators, water pumps, thermostats, hoses, and heater cores, and perform complete coolant flushes.
Turbocharger Service
Turbocharged engines are increasingly common in modern vehicles. We diagnose boost leaks, wastegate issues, and turbo bearing failure, and replace turbochargers when necessary.
Engine Mount Replacement
Worn or broken engine mounts cause excessive vibration, clunking noises, and can stress drivetrain components. We replace motor mounts and transmission mounts to restore smooth, quiet operation.
Compression & Leak-Down Testing
These tests reveal the internal health of your engine — worn rings, leaking valves, or a blown head gasket. We use compression and leak-down tests to make accurate repair recommendations before tearing anything apart.
Bring It In
Schedule an Engine Inspection Today
Engine warning light on? Hearing a noise you don't like? Losing power or leaking oil? Don't wait for a breakdown on Highway 78. Give us a call and we'll get your vehicle on the lift for a thorough engine inspection.
We'll diagnose the problem, explain what we find in plain language, and give you an honest estimate — never a hard sell. That's the Pro Automotive way.