Tony Zott
a month agoABRAHAM is an honest mechanic which are very hard to find! I recommend him to everyone I meet. Best experience with auto repair in a lifetime and I'm 61 — if that tells you anything.
Engine Diagnostics in Plymouth, MI
Check engine light on? We use professional OBD-II scanning to identify the exact issue — fast, honest, and affordable.
Professional Engine Diagnostics for All Makes & Models
A check engine light can mean anything from a loose gas cap to a serious engine problem. At Plymouth Auto Repair & Muffler, Abraham uses professional OBD-II diagnostic equipment to read the exact fault codes your vehicle is storing — and then gives you an honest explanation of what they mean.
Unlike some shops that charge just to read the codes, Abraham will scan your vehicle and explain the results clearly. You'll know exactly what's wrong, what it will cost to fix, and whether it's urgent — before any work begins.
Included Services
- OBD-II diagnostic scan (reads all stored fault codes)
- Code interpretation and explanation
- Visual engine inspection
- Fuel system inspection
- Ignition system inspection
- Emissions system inspection
- Sensor testing (O2 sensors, MAF, MAP, etc.)
- Written diagnosis and repair estimate
Signs Your Engine System Needs Attention
Don't ignore these warning signs. Call Abraham at (734) 667-1250 if you notice any of the following:
- Check engine light is on (solid or flashing)
- Reduced engine power or sluggish acceleration
- Rough idle or engine misfires
- Poor fuel economy
- Engine stalling or hesitating
- Unusual engine noises (knocking, pinging, ticking)
- Failed emissions test
- Engine overheating
Why Plymouth Drivers Choose Us for Engine Diagnostics
Accurate, Professional Diagnosis
We use professional-grade OBD-II scanners that read all fault codes — not just the basic ones. You get an accurate diagnosis, not a guess.
Honest Explanation
Abraham explains exactly what the codes mean in plain English. No jargon, no scare tactics — just the facts about your car.
Same-Day Diagnosis
Walk in and we'll scan your vehicle right away. Most diagnostic scans are completed within 30–60 minutes.
No Unnecessary Repairs
If the issue is minor (like a loose gas cap), we'll tell you. We only recommend repairs that are genuinely needed.
What Our Customers Say
Sarah Burcon
5 months agoThis repair shop is quick, reliable, and honest — and I stress honest. Highly recommended.
Jaime Sharer Kilburg
8 months agoThis is the most honest auto repair shop in Plymouth. Abraham scanned for the issue, discovered it, and cleared it within minutes. Completely honest that there was no charge. Who does that? Abraham does.
Frequently Asked Questions About Engine Diagnostics
It depends. If the light is solid, it's usually safe to drive but should be diagnosed soon. If the light is flashing or blinking, that indicates a serious issue (often an engine misfire) and you should pull over and call us immediately. Don't ignore a flashing check engine light.
Abraham will give you a straightforward answer when you call. Diagnostic fees vary by the complexity of the issue. In many cases, if we perform the repair, the diagnostic fee is applied toward the repair cost.
We can clear the codes, but the light will come back on if the underlying problem isn't fixed. We always recommend addressing the root cause rather than just clearing the code.
Common causes include a loose or faulty gas cap, a failing oxygen sensor, a bad catalytic converter, spark plug or ignition coil issues, a faulty mass airflow sensor, or an EVAP system leak. The only way to know for sure is a proper diagnostic scan.
Yes — we're a full-service repair shop. Once we diagnose the issue, we can repair it the same day in most cases. You'll get a complete estimate before any work begins.
Schedule Your Engine Diagnostics Today
605 Ann Arbor Rd, Plymouth, MI 48170
| Day | Hours |
|---|---|
| Mon – Fri | 8:00 AM – 6:00 PM |
| Saturday | 8:00 AM – 4:00 PM |
| Sunday | Closed |