Services · Owensboro, KY

Carbon Cleaning (Walnut Blasting)

Advanced walnut blasting removes carbon buildup from direct-injection engines, restoring performance and efficiency.

What we do

Carbon Cleaning (Walnut Blasting) done right

Direct-injection engines, common in BMW, Audi, VW, Mercedes and many modern domestics, don’t wash their intake valves with fuel. Carbon builds up, choking airflow and causing misfires, rough idle and lost power.

Walnut blasting uses crushed walnut-shell media to safely strip that carbon without harming the metal. It’s the manufacturer-approved method and one of the most effective services you can do for a high-mileage direct-injection engine.

What's included

Intake-valve inspection with a borescope
Walnut-shell media blasting of intake ports and valves
Intake gaskets and seals replaced as needed
Post-service idle and misfire verification
Recommendations for keeping carbon down

12-mo / 12K-mi warrantyOn most parts & labor

Estimate before workNothing over $100 without your OK

OEM or premium partsYour choice, installed right

Warning signs

Bring it in if you notice any of these

Misfires at idle

Cold-start misfire codes and rough idle are classic signs.

Loss of power

The car feels slower than it used to, especially at low RPM.

Worse mileage

Restricted airflow costs fuel economy.

High-mileage DI engine

Many benefit from cleaning around 60k–100k miles.

How it works

Simple, transparent, done right the first time.

Book

Call, message, or request an appointment online. Tell us the year, make, model and what you're noticing.

Diagnose

Certified technicians and factory-level diagnostic tools find the real cause, not just the symptom.

Approve

You get a clear estimate before we start. Any repair over $100 waits for your go-ahead.

Drive

Fixed right the first time and backed by our 12-month / 12,000-mile warranty on parts and labor.

FAQ