Truck and Diesel Diagnostics in Midland, TX

Codes are only the starting point. At Chris’s Diesel Service, we scan every module, read live data, and test the actual system before recommending any repair. We work on work trucks, diesel pickups, gas trucks, cars, and SUVs across Midland, Odessa, and the surrounding West Texas area, from check engine light diagnostics to a full car diagnosis when something just does not feel right.

Call (432) 557-6500
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Sameday
Most Diagnostics Completed
12+yrs
In Shop Experience
Zero
Comebacks in 2025
What You Notice and What It Means

Tell Us the Symptom.

You do not need to know what is wrong before you call. You just need to describe what the vehicle is doing. Below are the most common reasons people come in and what we usually find.

Check Engine Light
Likely Path Vehicle diagnostic codes can point to fuel, ignition, emissions, sensor, or transmission-related problems. We scan every module, review live data, and verify the root cause before recommending repairs.
Hard Starting or No Start
Likely Path Battery, starter, ignition, fuel delivery, or electrical problems can all cause starting issues. We test the system properly instead of guessing based on symptoms alone.
Rough Running or Loss of Power
Likely Path Misfires, vacuum leaks, injector problems, weak fuel pressure, or sensor faults can affect performance. Road testing and live data help us isolate the actual issue. Internal failures move to engine repair and rebuild.
Transmission Problems
Likely Path Hard shifting, delayed shifting, slipping, or warning lights may involve transmission faults, fluid condition, electrical problems, or internal wear. Confirmed internal wear moves to transmission service.
Battery Dies Overnight
Likely Path Parasitic battery drain is often caused by modules or electrical components staying active after shutdown. We perform electrical testing to locate the exact source.
Previous Repair Did Not Fix the Problem
Likely Path Sometimes the original diagnosis stops at the code instead of identifying the actual failure. We re-test the system and verify the issue before moving forward.
The Process

Our Diagnostic Process

Every full diagnostic at Chris’s Diesel Service follows the same sequence. The order matters. Skipping a step is how shops end up replacing a sensor that was never the problem.

  1. 01

    Listen to the Problem

    We ask questions about the symptoms, when the issue happens, and whether previous repairs were performed.

  2. 02

    Scan and Monitor Data

    We use OBD-II and manufacturer-level scan tools to check communication systems and sensor data.

  3. 03

    Verify the Cause

    We perform electrical testing, system checks, and road testing to confirm the actual problem before replacing parts.

  4. 04

    Explain the Findings

    You receive clear diagnostic results and a written repair recommendation before work begins.

A rugged diagnostic laptop running manufacturer-level scan software used for truck and diesel diagnostics by Chris's Diesel Service in Midland TX
Tools and Capability

Professional Diagnostic Equipment

Modern vehicles need more than a basic code reader. Our shop uses professional diagnostic equipment for:

  • Live data monitoring
  • Electrical diagnostics
  • Charging system testing
  • Module communication
  • Drivability diagnostics
  • Commercial vehicle diagnostics
  • Manufacturer-specific scanning
Diagnostic FAQ

Common Questions

What is a full vehicle diagnostic?
A full vehicle diagnostic is a structured inspection that reads fault codes from every module on the vehicle, tests the sensors and actuators feeding those modules, verifies live data on a road test, and isolates the actual root cause before any parts are quoted. We use OBD-II plus manufacturer-specific scan tools, and we write the findings down before we touch the vehicle.
How long does a diagnostic take in Midland, TX?
Most passenger vehicle diagnostics are completed the same day at our Midland shop. Intermittent faults, complex electrical issues, and drivability concerns that only show up on a road test can take longer. We will give you an honest timeline before the vehicle is dropped off.
Do you diagnose electrical problems?
Yes. Wiring faults, parasitic battery drains, charging system problems, module communication faults, and sensor-related electrical issues are all diagnosed here with proper electrical testing rather than parts swapping. Repair and module work is covered on our electrical and programming page.
What scan tools do you use?
OBD-II for generic codes, then manufacturer-specific platforms for live data, bidirectional control, and module-level testing. For diesel platforms we add the same depth on the engine, transmission, and emissions controllers. The right tool depends on the vehicle, and that judgment is part of the diagnostic.
My check engine light came back on after another shop. Can you re-diagnose it?
Yes. A returning code usually means the original diagnosis stopped at the code instead of finishing at the cause. We re-test from scratch, document what we find, and tell you honestly whether the previous repair was right, wrong, or only part of the picture.
Do you run diagnostics on cars and SUVs?
Yes. Cars, SUVs, and gas trucks get the same full vehicle diagnostic as the work trucks and diesel pickups we see. Check engine lights, warning lights, starting problems, and drivability concerns are all diagnosed with the same scan, test, and verify process.
Do you work on diesel trucks and fleet vehicles?
Yes. Gas vehicles, diesel pickups, and work trucks are all diagnosed here with the same process. Businesses running multiple vehicles can fold diagnostics into a scheduled program through our fleet services.

Need a Real Answer on Your Vehicle?

Bring your truck or vehicle to Chris’s Diesel Service in Midland, TX for professional diagnostics and honest answers. We find the actual problem, explain the findings clearly, and give you a written repair recommendation before work begins.

Call (432) 557-6500
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Related Auto Services

A diagnostic almost always points at one of these. We handle the repair in the same shop, with the same standard.

Engine Repair and Rebuild Transmission Service Electrical and Programming Brake and Suspension
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