Old Souls Garage Call
8-Year Toyota Master Technician. 10-Year ASE Master Certified.

Check Engine + Drivability Diagnosis in Mount Vernon, KY

Check engine light, misfires, rough idle, hesitation, stalls. We find the root cause — not just clear the code.

Call (606) 386-0997 Mount Vernon, KY · Mon–Fri 8am–6pm · Sat 8am–2pm

Check Engine + Drivability Diagnosis in Mount Vernon, KY

"Check engine light that keeps coming back" — that is the sentence we hear most from customers walking in the door for the first time. Clearing the code without fixing the cause is the oldest trick in the shop industry, and it leaves customers paying for the same problem three and four times. Not here. ASE master certified, 8 years at the Toyota master level — we diagnose it properly the first time.

We handle the whole drivability field: check engine light of every flavor (P0420 catalytic codes, EVAP codes, misfire codes, O2 sensor codes, fuel-trim codes, transmission codes, ABS codes, and intermittent codes that only show on a scan after a drive), rough idle and hesitation, stalling and no-start, poor fuel economy, pre-purchase inspections with a written report, and the tricky symptoms other shops wrote off as "no problem found."

The right tools matter. Dealer-level scan tools with live data on every module, freeze-frame, mode 6 emissions testing, fuel-trim history, and a smoke machine for EVAP. The right process matters more: listen to the customer, read the data, test the component, then quote the repair. In that order. A $40 sensor should not balloon into a $600 bill because nobody took the time to test it.

Old-school diagnostic patience applied to modern engines. Customers bring us cars that have been to two or three shops already — sometimes the original shop cleared the code and hoped, sometimes they replaced a guess, sometimes they just gave up. We find it, document it, fix it, and verify the fix held on a follow-up scan.

Old Souls Garage handles check engine light diagnosis for drivers across Mount Vernon, KY and all of Rockcastle County and the surrounding area. Call (606) 386-0997 and we'll give you honest numbers before you come in.

Why us for check engine light diagnosis in Mount Vernon

  • Root-cause diagnosis — not code-clear-and-cross-your-fingers
  • Live data, freeze-frame, and mode 6 on every drivability concern
  • Smoke machine for EVAP leaks — the only real way to find small ones
  • Pre-purchase inspection with a written report — compression, scan, lift, test drive

How it works

  1. 1
    Call or text

    Describe what the car is doing and when. Intermittent symptoms need the most context — tell us everything.

  2. 2
    Real diagnosis

    Scan, live data, road test if needed. We find the cause and put it in writing before any repair is quoted.

  3. 3
    Fix it once

    Right part, right procedure, verified with data. No "try this and see." Warranty on parts and labor.

Mount Vernon drivers
Get it done right — the first time.
Call (606) 386-0997
Mon–Fri 8am–6pm · Sat 8am–2pm

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Related services in Mount Vernon

Electrical Diagnosis in Mount Vernon
The electrical problems other shops give up on. Parasitic draws, wiring faults, module issues, intermittents — we find it and fix it.
Toyota Hybrid Repair in Mount Vernon
One of the few independent shops in central Kentucky that actually works on Toyota hybrid systems. Prius, Camry Hybrid, RAV4 Hybrid, Highlander Hybrid.
Engine Repair in Mount Vernon
Timing belts, timing chains, water pumps, head gaskets, gasket work, full engine replacement. Real engine repair, done once, done right.

Common questions

My check engine light keeps coming back after other shops clear it. Can you help? +
That's exactly what we specialize in. Clearing the code without fixing the root cause is the oldest trick in the book. We diagnose the actual problem — whether it's an emissions issue, a misfire, a sensor, or something deeper.
What does a check-engine diagnosis cost? +
A basic code-pull is inexpensive; a real diagnosis — live data, component testing, the whole story — is priced by time. Some problems tell you everything in five minutes; others take an hour of chasing. We tell you the ceiling before we start.
Will clearing the code fix it? +
No — clearing the code erases the record of the problem. The underlying condition is still there, and the light will come back, usually worse. We diagnose first, repair, then verify the repair held. That's the whole point.
Do you do pre-purchase inspections? +
Yes, and you shouldn't buy a used car without one. We put it on the lift, compression-test if warranted, scan every module, road-test it, and give you a written report of every issue with severity. That $150 saves thousands.
Can you diagnose ABS, traction control, or other module codes? +
Yes. Dealer-level scan tools read every module on the car, not just the engine. We handle ABS, traction control, SRS, transmission, body, and HVAC codes.