Don's Garage Automotive and Transmission
Service · Denver

Full Vehicle Diagnostic

Other shops sell the fix. We sell finding the problem first.

Call (303) 295-2448

What this service is

Diagnostic is the most undervalued service in the trade. A lot of shops will quote you a repair before they've actually found the problem. We do a real diagnostic — scan, drive, test — and tell you what's wrong before we tell you what it'll cost to fix. Diagnostic fee credited against the repair if you go forward with us.

What's involved

  1. OBD-II scan plus manufacturer-specific code read
  2. Live data review under load — drive cycle if needed
  3. Visual and physical inspection of suspect systems
  4. Written report of findings, not just a code list
  5. Diagnostic fee credited against repair work

Wondering if this repair is worth it? Use our free repair-or-replace calculator for a math-based answer in under a minute.

Common signs you need it

If you're seeing any of these, bring it in.

Check engine light that came back after a parts-store reset

Intermittent problem — happens when it's cold, or only on the highway

New noise, smell, or vibration you can't pin down

Multiple shops have already quoted you and the symptom's still there

What customers say

Reviews coming soon — check our Google profile in the meantime.

Bring it in. We'll tell you straight.

Real diagnostics, honest call between fix and replace, no sold work that doesn't need doing.

Call (303) 295-2448