VehicleDiagnostics
Check engine light on, or something just doesn't feel right? We track down the cause so you know exactly what is going on with your vehicle.
- ASE certified mechanics
- All makes & models
- Mon – Sat, 10 AM – 6 PM
Find the real cause first
So the right repair gets done
Modern vehicles monitor themselves constantly. When something is not right, they often store a fault code or turn on a warning light. A code points to the system where a problem was detected, but it does not always name the exact part that has failed.
- The code
- Points to the system where a problem was detected.
- The testing
- Finds the real cause before any parts are replaced.
Our ASE certified mechanics specialize in European & domestic vehicles, and we work on all makes and models.
When to get it checked
Signs your vehicle needs diagnostics
Noticed one of these? It's worth having it looked at before a small problem becomes a bigger one.
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Check engine light
A steady light means a fault has been stored. A flashing light usually means something more serious, so have it checked as soon as possible.
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Rough running
Rough idling, hesitation when you accelerate, stalling, or an engine that takes longer than usual to start.
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Noises & smells
New knocking, ticking or whining sounds, or unusual smells such as something sweet or burning.
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Other warning lights
Lights for oil pressure, engine temperature, charging or brakes. If oil pressure or temperature lights come on, pull over safely.
How it works
From the warning light to the answer
You know what is happening with your vehicle at every stage.
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01
Tell us what you noticed
Call 224-269-5090 or request an appointment, and describe the symptoms and when they happen.
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02
Read the codes
A scan tool reads the trouble codes stored by your vehicle's computer, showing which system detected a problem.
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03
Find the real cause
Further checks and testing pinpoint the cause, so parts are not replaced on guesswork.
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04
Explain your options
We explain what we found and the cost before any work begins. The repair starts once you give the go-ahead.
Why Specialty Motorwerks
A local shop you can trust
We explain what your vehicle needs and the cost before any work begins, so there are no surprises.
- BBB Accredited Business
- Car Care Aware
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ASE certified mechanics
Your vehicle is looked after by ASE certified mechanics.
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European & domestic specialists
We specialize in European & domestic vehicles and work on all makes and models.
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Locally owned & operated
An independent shop at 775 Long Lake Dr, Unit B in Round Lake, IL.
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Guaranteed work
12 months / 12,000 miles on parts and labor.
Common questions
Good to know
Can't find your answer? Give us a call and we'll be happy to help.
A code points to the system where a problem was detected, but it does not always name the part that has failed. Further testing finds the real cause, so you don't pay for parts you didn't need.
Usually, yes. A flashing light often means a misfire that can overheat and damage the catalytic converter. Reduce your speed, avoid heavy acceleration and have it checked as soon as possible.
Yes. We specialize in European & domestic vehicles, and we work on all makes and models, including Asian vehicles.
Every vehicle and every problem is different, so we look at your vehicle first and then talk you through the cost. Call 224-269-5090 to ask about your vehicle.
Related services
Explore our other services
We offer 12 services for cars, trucks and SUVs, all under one roof.
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Electrical Services
Warning lights, power problems or something electrical that has stopped working.
Learn more
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Engine Repair
From rough running to loss of power, engine problems diagnosed and repaired properly.
Learn more
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Engine Maintenance
Oil & filter service and regular checks that help prevent problems later.
Learn more
Diagnostics
Warning light on?
Tell us your vehicle's make, model and what you've noticed, and we'll find a time that works.