Expert Engine Repair Services
Restore Power, Performance, and Reliability
Is your check engine light on? Engine running rough? Loss of power? Your engine is the heart of your vehicle, and when problems arise, you need expert diagnosis and repair. At Dr. Flash Auto Repair, our ASE-certified technicians have the knowledge, experience, and advanced diagnostic equipment to diagnose and repair all engine problems from simple sensor replacements to complete engine rebuilds. We service all makes and models with precision and care.
Common Engine Problems We Repair
Warning Signs Your Engine Needs Service
Check Engine Light: The Most Common Warning
What the Check Engine Light Means:
- Your vehicle's computer (ECM/PCM) has detected a problem with: Engine performance, Emission controls, Fuel system, Ignition system, Sensor malfunctions, Or other monitored systems.
Don't Ignore It:
- Problem will likely worsen, May cause additional damage, Could be simple or serious, Affects fuel economy, May cause emissions test failure.
Flashing Check Engine Light (CRITICAL):
- Indicates severe engine misfire.
- Can damage catalytic converter (expensive!) — Stop driving immediately.
- Get service ASAP.
Loss of Power
Symptoms:
- Sluggish acceleration, struggles on hills, reduced towing capacity.
Common Causes:
- Clogged fuel filter, weak fuel pump, restricted air filter, clogged catalytic converter.
Rough Idle or Stalling
Symptoms:
- Engine shakes at idle, RPMs fluctuate, engine dies at stop signs.
Common Causes:
- Vacuum leaks, dirty throttle body, faulty idle air control valve, spark plug problems.
Needs Attention: Won't fix itself.
Engine Misfires
Symptoms:
- Hesitation or stumble, jerking during acceleration, poor fuel economy.
Common Causes:
- Worn spark plugs, failed ignition coils, compression loss,
carbon buildup.
Serious Concern: Can damage catalytic converter.
Hard Starting
Symptoms:
- Extended cranking, starts then immediately dies, difficult when cold or hot.
Common Causes:
- Weak fuel pump, sensor failure (crankshaft/camshaft), low compression.
Loss of Power
Symptoms:
- Sluggish acceleration, struggles on hills, reduced towing capacity.
Common Causes:
- Clogged fuel filter, weak fuel pump, restricted air filter, clogged catalytic converter.
Rough Idle or Stalling
Symptoms:
- Engine shakes at idle, RPMs fluctuate, engine dies at stop signs.
Common Causes:
- Vacuum leaks, dirty throttle body, faulty idle air control valve, spark plug problems.
Needs Attention: Won't fix itself.
Engine Misfires
Symptoms:
- Hesitation or stumble, jerking during acceleration, poor fuel economy.
Common Causes:
- Worn spark plugs, failed ignition coils, compression loss, carbon buildup.
Serious Concern: Can damage catalytic converter.
Hard Starting
Symptoms:
- Extended cranking, starts then immediately dies, difficult when cold or hot.
Common Causes:
- Weak fuel pump, sensor failure (crankshaft/camshaft), low compression.
Our Complete Engine Repair Services
Accurate Engine
Diagnostic Services
Computer Scanning
- Read all trouble codes, monitor live sensor data, test actuator operation.
Physical Inspection
- Visual inspection of components, check for leaks, inspect belts and hoses.
Performance Testing
- Compression test, cylinder leak down test, fuel pressure, vacuum testing.
Spark Plug Replacement
Essential component for proper ignition. Worn plugs cause misfires, poor fuel economy, and power lo
We use the correct plug type specified for your vehicle (Copper, Platinum, Iridium).
Replacement Interval: 30,000–100,000 miles, depending on plug type.
Ignition Coil Replacement
Coils transform 12V battery voltage into the high voltage needed for a powerful spark. Failure causes rough running and misfire codes.
We diagnose the failed coil(s) and test the entire ignition system.
Fuel System Service and Repair
Healthy fuel system ensures optimal power and efficiency. We address weak fuel pumps, dirty injectors, and clogged filters.
Injector Cleaning
Removes carbon deposits to restore spray pattern and performance.
Fuel Pump Replacement
Restores consistent fuel pressure and volume.
Filter Replacement
Prevents restriction and pump strain.
Head Gasket Replacement
A major repair required for constant overheating, milky oil, or white exhaust smoke (coolant burning).
Our Service: Includes cylinder head resurfacing, new multi-layer steel gaskets, and complete cooling system pressure testing.
Engine Oil Leak Repair
We stop the drips from common sources like valve cover gaskets, oil pan gaskets, and main seals. Leaks are a fire hazard and lead to expensive engine damage from low oil.
We use UV dye for diagnosis and clean all surfaces to ensure a perfect seal.
Critical Sensor Replacement
Modern engines rely on sensors (O2, MAF, Crank/Cam Position) to function. Sensor failure causes performance issues, poor fuel economy, and check engine lights.
Warning: Don't replace sensors without diagnosis. They often report problems they don't cause.
Engine Overhaul and Rebuild
When compression is lost, oil consumption is excessive, or internal damage occurs, an overhaul may be necessary. We offer rebuilds and complete remanufactured engine replacements.
Remanufactured Engine:
Factory rebuilt to like-new specs, faster installation, and typically includes a 3yr/100k mile warranty.
Rebuilt Engine (In-House):
We replace worn pistons, rings, and bearings, and resurface cylinder heads to restore power.
Need a Major Engine Work- Give us Call!
Engine Maintenance Services
Preventive Engine Care is Key to Longevity
Regular Engine
Tune-Ups
Includes spark plugs, ignition inspection, fuel system cleaning, and new filters. Restores performance, improves economy, and reduces emissions.
Recommended:
Every 30,000–100,000 miles.
Engine Air Filter Replacement
A dirty filter restricts airflow, robbing power and efficiency. Quick and affordable service that protects your MAF sensor.
Interval: Every 15,000–30,000 miles.
PCV System
Service
Positive Crankcase Ventilation removes harmful gases. A neglected valve can cause oil leaks, rough idle, and sludge buildup.
Interval: Every 30,000–50,000 miles.
Keep Your Engine Strong? Schedule Maintenance Now!
Engine Repair FAQs
Need immediate clarity before booking? Find quick, transparent answers to the most common questions about our Engine Repair Services, and how we ensure efficiency for every vehicle in our Richmond, TX shop.
How long do engines last?
With proper maintenance, modern engines typically last 200,000–300,000 miles, with many exceeding 400,000 miles.
Regular oil changes are the single most critical factor.
What's the most important engine maintenance?
Regular oil changes with quality, manufacturer-recommended oil. This lubricates parts, removes contaminants, and prevents sludge buildup, dramatically extending engine life.
Is it worth repairing an old engine?
It depends. We recommend repair if the vehicle is otherwise in good condition, has sentimental value, and the repair cost is less than the vehicle's replacement value. We'll give you an honest assessment to help you decide.
Can I drive with a check engine light on?
If the light is solid and the vehicle seems normal, you can usually drive it for a short time, but get it diagnosed within a week.
If the light is flashing, or if you experience power loss or rough running, STOP DRIVING IMMEDIATELY.
Do engine repairs come with a warranty?
Yes. We stand behind our work with a labor warranty (typically 12 months/12,000 miles) and a parts warranty (1–3 years, depending on the manufacturer).
Remanufactured engines often include a 3-year/100,000-mile warranty.
Why Choose Dr. Flash for Engine Repair?
ASE-Certified Technicians
Advanced Equipment
Quality Parts Guarantee
Expertise That Makes the Difference
- Certified in engine performance and repair.
- Trained on all modern engine technology.
- We've repaired thousands of engines—we know what we're doing.
Professional Tools for Accurate Diagnosis
- Factory-level scan tools and professional oscilloscopes.
- Compression, leakdown, and fuel pressure testers.
- Proper equipment ensures accurate diagnosis, not guesswork.
OEM and Premium Components
- We install Original Equipment Manufacturer (OEM) or premium aftermarket parts.
- All repairs are backed by our comprehensive warranty.
- We fix it right the first time with reliable components.
Ready to get your engine fixed?
Contact the experts today!
Certified in engine performance and repair.
Serving the Greater Houston Area including Richmond, Rosenberg, Sugar Land, Katy, and more!
Need a quote? Contact us today for a free estimate. We'll explain exactly what your vehicle needs and what it will cost
no surprises, no pressure.
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