A check engine light deserves an answer, not a guess — at your address
A mobile diagnostic visit in Radcliff, KY costs a flat $90–$140: full computer scan, live-data check, and road test at your home, ending in a written finding and a firm repair quote — with the fee typically credited if you approve the repair.
A parts-store code read is free and worth exactly that: a code is a symptom, not a diagnosis. P0420 might be a $1,200 catalytic converter or a $60 oxygen-sensor wire chewed by a squirrel. The difference between those two outcomes is an hour of live data, testing, and a road test — which is what this visit is.
It matters double in this market because so many Radcliff cars change hands fast. Before you sell around a PCS date, a diagnosed and documented car is worth real money over one with a glowing amber question mark. Before you buy one, the same hour is packaged as a pre-purchase inspection at the seller's curb.
The finding comes in writing: what's wrong, what it costs to fix at typical local rates, and what happens if you wait. Some answers are "drive it, it's a loose gas cap." You pay for the truth, not for drama.
| Option A: tow it to a shop | |
| Drive it to a shop & hope | risk |
| Shop diagnostic fee | $100–$150 |
| Days in the queue | 1–3 |
| Typical cost to an answer | $100–$150 |
| Option B: mobile mechanic comes to you | |
| Mobile scan + live data + road test | $90–$140 |
| Days waiting | 0 |
| Fee credited if you approve repair | yes |
| Typical cost to an answer | $90–$140 |
A flashing light means active misfire — stop driving it and lead with that when you call. Typical local ranges, July 2026 — not a quote. Your mechanic confirms pricing before work starts.
When this is not a driveway job
Intermittent electrical gremlins that need days on a scope, dealer-only module programming, and open-recall work are shop or dealer territory. The visit will tell you that plainly if the data points there — along with exactly what to tell the shop so you don't pay for the diagnosis twice.
Straight answers
Is the diagnostic fee really credited?
When the referred mechanic performs the repair, the visit fee is typically applied to it — confirm the credit in the quote when you book, and hold them to it.
Can you diagnose a noise or vibration with no light on?
Yes. Half of diagnosis is a road test with trained ears; codes are only one instrument in the kit.
My inspection deadline / sale is this week. How fast?
Same-day or next-day for most of Radcliff and E-town. Say the deadline on the phone and it gets triaged accordingly.
Back to all mobile mechanic services from Radcliff Mobile Mechanic, or check coverage for Vine Grove and Elizabethtown.