Diagnostics
Check engine light and drivability diagnostics in York, PA.
Find the real cause
Check Engine Light & Diagnostic Service In York, PA
A warning light tells you something is wrong, not what to replace. Our diagnostic service is the testing and troubleshooting that finds the actual cause, so you are not paying for parts that do not fix the problem.
When you book, give us as much detail as you can about what the car is doing and when. If we need more information, someone will get in touch before your appointment. If you only want the stored codes read and printed, ask for an engine light scan instead.
Request a quote →Bring It In If
- Check engine light is on or flashing
- Rough idle, stalling, or misfires
- Hard starting or no start
- Loss of power or poor fuel economy
- Smells, smoke, or fluid leaks
- A noise you cannot place
Diagnostic Services
- Full diagnostic testing
- Engine light code scan
- Smoke testing for leaks
- Pressure testing
- Electrical troubleshooting
- A clear estimate before repairs
Why choose us
Why Choose Lopez Auto Lot
A family-owned shop serving York, PA since 2014, with honest advice, fair pricing, and repairs done right.
- Family owned since 2014
- Fair, upfront pricing
- PA inspection & emissions station
- Easy online booking
- 12-month/12,000-mile warranty on most qualifying repairs
- Repair financing available
Common questions
Diagnostics FAQs
How much do diagnostics cost?
Diagnostics start at $80, which covers up to one full hour of diagnostic time.
What is the difference between a code scan and a diagnostic?
A code scan only reads and prints the stored check engine codes. A diagnostic is the testing and troubleshooting that finds out why the code set, so the right part gets fixed the first time.
What should I tell you when I book?
As much detail as you can: what the car is doing, when it happens, and any warning lights. If we need more information, someone will call you before your appointment.
Request a quote
Tell us what your vehicle needs.
We're a family-owned shop that treats every customer like a neighbor. Send us your vehicle info and we'll follow up with an honest recommendation — no pressure, no scare tactics.
- 12-month/12,000-mile warranty on most qualifying repairs
- Fair, upfront pricing
- Family owned since 2014
- Easy online booking
226 Willis Rd
York, PA 17404
Mon–Thu 9:00 AM–5:30 PM
Fri 8:00 AM–4:00 PM
Sat 7:00 AM–1:00 PM
Sun Closed
Ready when you are
Get clear answers and recommended next steps.
Clear recommendations. An upfront estimate. Your approval before repairs begin.