Diagnostic & Specialty Repair Solutions
Ensuring Your Vehicle is Reliable, Efficient, & Road-Ready
Modern vehicles rely on intricate electronic systems, onboard computers, and precise components. When something feels “off,” you need a team with the experience – and the technology – to diagnose it quickly and correctly. At Tom Dwyer Automotive Services, we use cutting-edge tools and data-driven testing to isolate issues and complete the repairs your vehicle truly needs.
Advanced Diagnostics
We use manufacturer-level scan tools and digital testing equipment to identify electrical issues, sensor failures, drivability concerns, warning lights, and more - without guesswork.
Specialty System Repairs
From emissions problems to cooling system failures and electronic malfunctions, we repair the systems that keep your vehicle running efficiently and safely.
Preventative Insight
Our diagnostics don’t just solve current issues - they also detect developing problems early, helping you avoid unexpected breakdowns and costly repairs down the road.
Welcoming new clients with vehicles 15 years old or newer;
proudly servicing existing clients’ vehicles of any year.
Our apologies, but we do not work on Salvage Title vehicles of any kind.
Diagnostics
Today’s vehicles rely on dozens of computerized systems working together. When a warning light comes on – or when something doesn’t feel right – accurate diagnostics are the key to solving the problem correctly. Our ASE-Certified Technicians use industry-leading scan tools, voltage testing, pressure analysis, and live data monitoring to find the root cause instead of treating symptoms.
Whether it’s reduced power, rough idling, poor fuel economy, stalling, or persistent dash lights, we identify the issue with precision so you only pay for the repairs you truly need.
The Tom Dwyer Way
We combine advanced technology with hands-on expertise to deliver reliable results. Every diagnostic includes a full explanation of what we found, what’s causing the problem, and the best repair options for your vehicle – with full transparency every step of the way.
What we Diagnose
Check engine lights & warning lights
Electrical & wiring issues
Engine misfires & drivability problems
Fuel delivery issues
Emissions & DEQ-related problems
Cooling system faults
Charging & starting system issues
Common Diagnostic Concerns
Rough idle or engine shaking
Loss of power under acceleration
Sudden drop in fuel efficiency
Intermittent starting problems
Unusual odors or noises
Overheating or fluctuating temperature gauge
Warning lights that turn on and off randomly
Specialty Repairs
Some vehicle issues fall into the “hard to figure out” category – problems that aren’t routine maintenance and don’t fit neatly under brakes, suspension, tires, or HVAC. These are the repairs that require deeper testing, pattern recognition, and diagnostic experience. Whether you’re dealing with a persistent drivability concern, intermittent performance problem, or something that other shops haven’t been able to pinpoint, our Technicians specialize in resolving the complex issues that keep your vehicle from running at its best.
The Tom Dwyer Way
We don’t guess. We confirm. From smoke testing and pressure testing to electrical tracing and thermal imaging, we use diagnostic-driven repair methods to ensure accuracy and prevent repeat issues.
What We Service
Drivability and performance issues
Fuel mixture and trim concerns
Intake system problems & vacuum leaks
Exhaust leaks and noise diagnosis
Idle control and stalling issues
Transmission-related drivability concerns
Hard-to-track vibrations or intermittent noises
Common Symptoms
Hesitation, surging, or rough running
Rough idle or stalling at stops
Noticeable exhaust smells or leaks
Loss of power or inconsistent acceleration
Knocking, pinging, or rattling noises
Odd vibrations not tied to wheels or suspension
Fluctuating RPMs or inconsistent idle