Reliable Engine Maintenance & Repair

Engine Repairin Lake Elsinore, CA

The Importance of Engine Diagnostics

If your car or truck isn’t performing as it should, the onboard computer system in your vehicle is often the first to detect the issue. One of the most common alerts is the check engine light, which many drivers ignore or even disable. However, this warning light is designed to help you address potential problems before they lead to more serious—and costly—repairs.

Ignoring engine warnings can result in major issues, including complete engine failure. That’s why it’s essential to act quickly when you notice a warning light or any unusual performance. At Johnson’s Auto Repair, our certified technicians use advanced engine diagnostic tools to identify the problem and recommend the right solution to get you back on the road safely.

Don’t delay—schedule a diagnostic check with us at the first sign of trouble. Your vehicle deserves proactive care to ensure long-term reliability and performance.

+1(951) 445-8055

If you have any questions, feel free to call us or request an appointment.

ASE-certified team

Our ASE-certified mechanics diagnose and repair engines on all major foreign and domestic cars, trucks and SUVs.

1-year/12,000-mile warranty

Engine repairs are backed by our 1-year/12,000-mile warranty.

Written estimate first

Every engine repair starts with a written estimate, so you know what we plan to do and can decide before we begin.

Our
Services

Your vehicle’s engine is its heart, and keeping it in top condition is essential. Before modern diagnostic tools, identifying engine issues was time-consuming and costly. Now, advanced engine diagnostics allow us to detect problems early, before they turn into bigger repairs.

Our comprehensive engine services include:

  • Engine diagnostics to detect issues quickly.
  • Repairs for timing belts, gaskets, spark plugs, and more.
  • Engine tune-ups to improve fuel efficiency and performance.
  • Complete engine rebuilds and overhauls.

 

We use advanced tools and techniques to ensure your engine operates at peak performance, keeping your vehicle safe and reliable.

Diagnosing the Issue

At Johnson’s Auto Repair, we help you catch problems early. Common engine warning signs include:

  • Check engine light is illuminated.
  • Knocking or unusual noises from the engine.
  • Decreased fuel efficiency or loss of power.
  • Oil or coolant leaks.

 

Our expert technicians will identify the cause of the issue and provide the necessary repairs. We back our services with a 1-year or 12,000-mile warranty, giving you peace of mind and confidence in your vehicle.

Engine repair questions

Straight answers to what drivers ask us most. Something else on your mind? Call (951) 445-8055.

What should I do if my engine is overheating?

Turn off the A/C and turn the heater on full to pull heat away from the engine, then pull over safely and shut it off. Never open the radiator cap on a hot engine; the coolant is under pressure. Driving an overheating engine can warp the cylinder head, so have it towed if the gauge stays high.

How do I know if my car has an oil leak?

Look for dark spots under the car, a burning oil smell after driving, smoke from under the hood, or an oil level that keeps dropping. Common sources are valve cover gaskets, oil pan gaskets and seals. We clean the area, find the actual source and give you a written estimate.

What causes an engine to misfire?

Worn spark plugs, a failing ignition coil, a clogged fuel injector or a vacuum leak are the usual causes. You'll feel shaking, rough idle or hesitation, and the check engine light often comes on or flashes. Misfires are worth fixing quickly because they can damage the catalytic converter.

Is engine repair covered by your warranty?

Yes. Repairs are backed by our 1-year/12,000-mile warranty, and you get a written estimate before any work begins, so nothing is done without your approval.

Recent engine work at our shop

A few recent jobs from our service records, with the mileage at the visit. No customer details.

VehicleMileageWork doneDate
2005 Honda Accord134,388 miRadiatorJul 2026
2020 Ram 1500108,493 miThermostat, Water pumpJul 2026
2020 Cadillac XT647,722 miThermostatJul 2026
2014 Infiniti Q50140,443 miRadiator, ThermostatJun 2026
2017 Chevrolet Equinox89,601 miValve cover gasketApr 2026

Customer reviews

Rated 4.7 on Google

Based on 230+ Google reviews, plus a 4.9 rating on SureCritic.