Why Engine Diagnostics Matter Before Buying a Used Car
A $75 pre-purchase inspection can save you thousands. What our scan tool reads — and what it can't — and why a visual inspection matters just as much as the code.
You found a clean-looking truck on Craigslist in Twin Falls for $12,000. The seller cleared the check engine light last week. Here's why you should still get a pre-purchase inspection.
What a diagnostic scan actually reads: An OBD-II scan pulls active fault codes and pending codes. Pending codes are faults that have appeared but haven't triggered the check engine light yet — they won't show up on a basic code reader. Professional equipment reads both.
What the scan won't tell you: - Rust under the frame (common on Idaho trucks driven on salted roads through the Snake River Canyon in winter) - Worn CV axles or ball joints - Whether the transmission shifts smoothly under load - Coolant or oil leaks that haven't thrown a code yet
What we check in a pre-purchase inspection ($75): - Full OBD-II scan including freeze frame data - Oil condition and level - Coolant condition - Brake pad thickness - Tire wear patterns - Suspension and steering components - Transmission fluid condition - Battery and charging system - Test drive with attention to transmission, brakes, and unusual sounds
For $75, you get a written report on what's right and what's not. Call us before you hand over a deposit: (208) 595-2101.
Questions? Give us a call.
Jr's Auto Repair · 417 Main Ave E, Twin Falls, ID · Mon–Sat 9AM–5PM
Call (208) 595-2101