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Engine Repair & Diagnostics in London, ON

Rough idle, loss of power, leaks, or strange noises? We diagnose engine problems properly and recommend only what’s needed to get your vehicle running reliably again.

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Accurate inspection
Clear estimates
Fast turnaround*

*Turnaround depends on parts availability and workload.

Engine service

Accurate Engine Diagnostics (Not Parts Swapping)

Engine issues can have multiple causes. We use scan data plus mechanical testing to pinpoint the problem before we quote repairs.

  • Check engine light diagnosis
    Scan and test misfires, sensor faults, and performance issues.
  • Mechanical testing
    Compression/leak-down testing when needed to confirm engine health.
  • Oil leak diagnosis
    Identify leak sources and recommend the right repair.
  • Cooling/overheating related faults
    Diagnose thermostat, fans, and coolant system interactions.
  • Repair & verification
    Fix the cause, road test, and confirm results.
Symptoms

Common Engine Problems We Fix

If you’re noticing these symptoms, book an inspection and estimate.

SEO tip: If the engine is knocking or overheating, stop driving and call us.
Our process

Clear Explanations and Options

We’ll explain what failed, why it failed, and what your options are (urgent vs recommended).

Typical checks

  • Fault codes and live sensor data
  • Fuel trim and misfire data analysis
  • Ignition and fuel system testing
  • Vacuum/intake leak inspection
  • Fluid levels/condition and leak sources
  • Mechanical health testing when required

Engine Repair FAQ

Answers about diagnostics, misfires, and engine performance issues.

Can you diagnose a rough idle?

Yes. Rough idle can be ignition, fuel, air leaks, sensors, or mechanical. We test to pinpoint the root cause.

What causes loss of power?

Common causes include misfires, clogged filters, sensor faults, exhaust restrictions, or fuel delivery issues. Diagnostics confirms the cause.

Do you repair oil leaks?

Yes. We identify the leak source (valve cover, oil pan, seals, etc.) and provide repair options and pricing.

Should I keep driving with a misfire?

It’s not recommended. Misfires can damage the catalytic converter and worsen quickly. It’s best to get it checked soon.

Will you provide an estimate before repairs?

Yes. After diagnostics we explain findings and provide an estimate before any repair work starts.