At Prime Auto Center, we take the mystery out of your engine problems. When your check engine light comes on or your car starts acting “off,” you need more than just a code scan — you need expert engine diagnostics from trained professionals who can interpret the results and actually fix the problem.

We specialize in engine repair in Ypsilanti, MI for all makes and models. Whether it’s a small issue like a bad sensor or a major internal repair, we have the equipment, experience, and integrity to get your vehicle running right — without wasting your time or money.

What We Diagnose

We use advanced OBD-II scanners and proprietary software to run a full diagnostic sweep of your vehicle’s engine and systems. Our process goes beyond just reading error codes — we find root causes and give you real answers.

Common Issues We Diagnose:

• Check engine light (steady or flashing)

• Rough idling or misfires

• Poor acceleration or loss of power

• Bad fuel economy

• Stalling or hard starts

• Engine overheating

• Oil pressure or temperature issues

• Sensor failures (O2, MAF, MAP, TPS)

• Emissions system faults

• Timing issues (belts, chains, sensors)

We’ll perform a comprehensive scan, manual inspection, and test drive, if needed, to ensure an accurate diagnosis.

Engine Repair Services We Offer

Once we’ve diagnosed the problem, our technicians will walk you through your repair options clearly and honestly.

Engine Component Repairs

We repair and replace critical engine components including:

• Spark plugs & ignition coils

• Fuel injectors

• Engine sensors (camshaft, crankshaft, O2, etc.)

• Intake manifolds & gaskets

• EGR valves & PCV systems

• Throttle bodies & air intake systems

Engine Performance Issues

If your car is running sluggish or has inconsistent power, we’ll test fuel pressure, air flow, compression, and timing to get to the source.

Engine Rebuilds & Replacements

For serious issues like rod knock, cracked blocks, or complete failure, we offer:

• In-house engine rebuilds

• Low-mileage engine replacements

• Used or remanufactured engine installation

• Warranty-backed labor and parts

Every major job is documented, test-driven, and double-checked.

Our Diagnostic Process

We don’t just guess — we prove.

1. OBD-II Computer Scan

   • Pull all active and pending diagnostic trouble codes (DTCs)

2. System Review

   • Look for trends in fuel trims, misfire counters, freeze-frame data

3. Visual & Physical Inspection

   • Check for vacuum leaks, damaged wires, failed parts

4. Road Test (if needed)

   • Reproduce the issue in real driving conditions

5. Quote & Explanation

   • Honest breakdown of what’s wrong, what it will cost, and what can wait

We also offer digital vehicle inspection reports — with photos — so you can see exactly what we found.

Who We Work On

We provide diagnostics and engine repair for:

• Sedans, SUVs, and trucks

• Foreign and domestic vehicles

• Hybrids and select EV systems

• Turbocharged and performance engines

• Fleet and delivery vehicles

• College student & commuter cars

Whether you drive a Toyota, Ford, Chevy, Honda, Nissan, Dodge, Hyundai, VW, or a luxury brand — we’ve got you covered.

Performance Tuning & Preventive Diagnostics

Looking to boost performance or prep your car for a long trip? We also offer:

• Compression testing

• Vacuum testing

• Fuel system cleaning

• Sensor calibration

• Preventive tune-ups

• Pre-purchase inspections

Catch problems before they cost you.

Why Choose Prime Auto Center?

• Experienced, ASE-certified technicians

• Industry-leading diagnostics equipment

• Clear, friendly communication

• No-pressure quotes

• Digital reports you can trust

• Test drives & real-world troubleshooting

• Honest pricing — no unnecessary repairs

We’ve built a reputation as Ypsilanti’s trusted engine repair shop because we treat every vehicle like it’s our own.

Schedule Engine Diagnostics Today

Get answers. Get fixed. Get back on the road.

Book Engine Scan Now

Or call us at (734) 833-7449

409 Emerick St, Ypsilanti, MI 48198