Engine Diagnostics & Digital Inspections
Dash light on? Odd vibration?
Before swapping parts, we let data lead the way.
This page explains what diagnostics actually are, why modern vehicles need them, and what you receive from a professional digital inspection at S&S Auto and Diesel.
A little more towards the bottom is our active blog where we will be posting about common diagnostic issues that are coming into the shop.

Diagnostics is the process of retrieving, interpreting, and verifying that data before repairs begin.
It prevents guess‑work and saves you from replacing parts that aren’t actually bad.
We will look for a diagnosis before repairing your vehicle, unless not necessary if the problems are clearly identifiable.

Check‑Engine or Service Engine Soon Lights

Rough idle, misfires, or hesitation under acceleration

Temperature gauge creeping higher than normal

Unusual exhaust smoke—blue, white, or black

Electrical gremlins: flickering lights, accessory failures
Common Signs Your Vehicle Is Asking for Answers

Sudden drop in fuel economy
What Happens During a Digital Vehicle Inspection?
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Vehicle Walk‑Around
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We begin with a visual check for leaks, damage, tire wear, and safety items. Photos are captured in real time.
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Connection & Data Capture
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A factory‑level scan tool connects to your OBD‑II port. All DTCs, pending codes, and live sensor data are downloaded.
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Guided Tests
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Based on initial codes, the technician performs targeted tests (voltage drop, smoke test, pressure test) to confirm root causes.
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Report & Severity Scoring
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You receive a mobile‑friendly report with photos, videos, and a stoplight severity rating: Green = OK, Yellow = Monitor soon, Red = Address immediately.
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Q&A + Repair Plan
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We walk you through findings, answer questions, and outline repair options—before any wrench is turned.
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Learn more about diagnostic issues
We post about all types of issues that our customers experience day to day, from clicking noises to dashboard lights, we will teach you about how to be the best vehicle owner in Texas.
You can subscribe to our newsletter for new blog posts about seasonal issues that are coming up or about discounts and specials throughout the year to save money on routine maintenance so you can stay on the road.
Need Answers about any car or truck issues?
Book a Diagnostic Session
Give us a all (940) 325-1221 to talk with Marissa today
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