Intake Carbon Cleaning (Walnut Blasting) in Oshawa & Scarborough

Intake Carbon Cleaning

We’ve been performing intake carbon cleaning aka walnut blasting on every type of direct injected gasoline engine including both naturally aspirated and with forced induction

Walnut Blasting Toronto

We have pioneered new methods to perform valve cleanings with better results than dealer level cleanings. We specialize in turbo applications and have extensive experience on BMW, Audi and Mercedes modern gasoline direct injected engines

Performance + Fuel Economy

Our customers have experienced as much as 7 psi of more boost simply from performing a valve cleaning with no other modifications or services done

Intake Carbon Cleaning

Financing

We offer financing on all repairs & modifications for any vehicle less than 10 years old, no credit checks required, instant approvals!

Intake Carbon Walnut Blasting

We offer financing on all of the products & services we provide.
There is no credit check required as the financing is based on the vehicle value & we offer many different financing options as well.

See for yourself!

Intake Walnut Blasting
Before And After Intake Valve Carbon Cleaning On A B8.5 Audi S5 At 98,000 Km
Walnut Blasting Mississauga
Intake Carbon Cleaning, Walnut Blasting
Walnut Blasting
Before And After Intake Valve Carbon Cleaning On An 8V Audi A3 At 135,000 Km

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See what our customers have to say!

Parts Plug Inc4.8
Based on 316 reviews
Paresh Sharma
Parts Plug has been my go to for the past 3 years (since i found out about them). Great prices and most importantly AMAZING, trustworthy staff. I know I can trust their advice, and that the work will be done RIGHT. + I dont know how… but they found the sweetspot for professional and chill, and it’s always a vibe. Thanks again for all your hard work!
Taylor Oake
Quick turnaround and great service will be going back for all my needs
brent irwin
Helped with supercharger pulley install top shelf staff!
Daljit
Hey! This place is seriously one of the best spots in all of GTA to get your car fixed up. I've been a customer at their other location for the past 5 years, and now they've opened one right near my house! Awesome! 😊
Christian M
Josiah and the team define customer service in the auto industry.
Response from the owner:Always happy to help! – J
Aaron S
Quality workmanship and attention to detail. Swapped my clutch, welded up a great exhaust, and got me some fresh summer tires. Installed a bbk and car drives great
Tevin Thompson
Nick has been nothing but wonderful, he did a full inspection on the car and let me know if there was any issues or problems he is definitely a go to for me when it comes to my car now I appreciate all the work he did I went home very happy and price was very fair
kohulan thurai
Great experience at Parts Plug Scarborough! I’ve been to the Whitby location before, and the Scarborough shop provides the same friendly, knowledgeable, and reliable service you would expect. This location is more convenient for me, so it’s great knowing I can get the same level of service closer to home. Highly recommend!
Aussie Mate
I have been going to this place for about 4-5 years and I have been dealing with Amar and his colleagues , They are highly trained, very reliable, honest & knowledgable and have helped me many times coming up with simple and quick solutions for any type of situation with both of my vehicles .They are very patient, courteous and polite and have always provided the excellent customer service. Highly recommend this place for auto repairs and maintenance. Best wishes, Jas
Response from the owner:Always happy to help you brother! – Amar
Maureen Sotiras
Best experience for a car repair ever. Was grateful for their advice prior to the alternator replacement. I was going to try to make it back home….. anyway, car was fixed quickly and is ready to go. Will definitely make this my garage moving forward. It's worth the drive to Oshawa, to have Parts Plug work on your car.
Natalie Tsang
Highly recommended! Just changed the water pump and did a carbon cleaning on my Audi. This is the shop we always go to any type of auto service.
Gagandeep Parmar
Great place to take your car for any service. Honest and reputable.
Jason Frost
Honestly, one of the best shops I’ve dealt with. You can tell they genuinely care about their customers and the work they do. They explained everything clearly, were honest about what I actually needed, and never tried to upsell me on things I didn’t need. Josiah was a huge help and is extremely knowledgeable when it comes to BMWs. Nick, the technician, was also very helpful, and both of them were super friendly and easy to deal with. After dealing with them myself, I can honestly see how the 1 star reviews about their customer service are fake. My experience was the complete opposite. Everyone was friendly, helpful, and easy to deal with. Pricing was also very fair, and I’d definitely recommend them to anyone looking for a trustworthy shop instead of going to the dealer.
Response from the owner:Appreciate the kind words Jason, thanks for your vote of confidence and i'm glad we were able to help you out! See you next time -A
Mark Chuchra
We stopped in on a Saturday morning with a bit of a challenge. A rodent had chewed through one of our injector wires. Honda dealer does not sell a suitable replacement, shy of a full engine harness – which would have been ridiculously expensive. The guy at Parts Plug spent a generous amount of time trying to help us out gratis, even though he did not have the specific part. Super friendly and knowledgeable.
Response from the owner:Always happy to help Mark, glad we could get you back on the road! -J
Keaton Booth
Tuned my car and fixed my exhaust leak while I waited. Very quick, friendly, and local! 100% recommend
Photo From Customer Review
Response from the owner:Glad we could help you out and fix the S3! – A
Kervna Armoogum
Thank you for your service. Provide all the information I needed over the phone and at the location, very quick to service.
Response from the owner:Always happy to help!
Mandeep Parmar
Amazing service as always! Have been coming to them for over 5 years! They always have an opening and are able to do quick checks and never ever overcharge. Really honest hard working individuals. You should definitely go to them for all of your car needs. 👏🏼
Mitchel Orr
These guys know what they’re talking about. Always great service and easy to work with.
Sj Chaitra
I had a great experience at this mechanic shop. The staff was friendly, honest, and took the time to explain everything that needed to be done without trying to upsell unnecessary repairs. The work was completed on time, and my vehicle has been running perfectly ever since. Their pricing was fair, and the customer service was excellent from start to finish. It's hard to find a mechanic you can trust, but this shop has definitely earned my confidence. I highly recommend them to anyone looking for reliable, professional service!
Abby de Jesus
My car started making weird noises. I called on a Friday night and they told me to come in tomorrow morning. They immediately started taking a look at my car and I was out of there in under a half hour! No more weird noises, they said it was an easy fix. Thank you so much!
Photo From Customer Review
Jescey
first experience dealing with them.. helped me out with my warranty company , they found the issue and did what needed to get done, didn’t say I needed extra work and all that like other shops, took care of me car Great guys good prices.
s m
Very quick and timely service, phone call updates throughout, same day repairs
Vishnu Thillainathan
Amazing experience from start to finish! The staff were friendly, professional, and honest, and the service was excellent. They took the time to explain everything clearly, completed the work efficiently, and made sure everything was done properly. It’s hard to find an auto shop you can truly trust, but I’ll definitely be coming back here for any future work. Highly recommend!
Taylor Walker
If you’ve been to their Oshawa location then tou already know, Parts Plug is one of the most reputable shops around and treat every car with care and respect. From brake jobs to performance parts they do it all and then some! Great staff, great owner, I wouldn’t recommend anywhere else!
Tunny Vandepol
Thanks to Amar and the team. Top shelf service and advice.
Response from the owner:Always happy to help! – Amar

Why Get Your Valves Cleaned?

Performing an intake valve carbon cleaning can offer several advantages, particularly for modern engines with direct fuel injection (DI). Here are some key benefits:

1. Improved Engine Performance: Carbon buildup on intake valves can restrict airflow into the combustion chamber, leading to reduced engine performance. Cleaning the intake valves helps restore optimal airflow and can enhance engine responsiveness and acceleration.

2. Increased Fuel Efficiency: A clean intake system allows for better air-fuel mixture formation, which can improve fuel combustion and efficiency. This often translates to better fuel economy and fewer trips to the gas station.

3. Reduced Emissions: Carbon deposits can affect combustion efficiency, leading to incomplete burning of fuel and increased emissions. Cleaning the intake valves helps ensure a more complete burn, which can reduce harmful emissions and help your vehicle meet environmental standards.

4. Smoother Engine Operation: Carbon buildup can cause rough idling, engine knocking, or misfires. Removing these deposits helps the engine run more smoothly and quietly, enhancing overall driving comfort.

5. Prevention of Engine Damage: Over time, excessive carbon buildup can lead to engine damage or increased wear on components. Regular cleaning helps prevent this buildup, potentially extending the life of the engine and its parts.

6. Improved Throttle Response: Carbon deposits can cause sticky or sluggish throttle response. Cleaning the intake valves can help restore a more immediate and predictable throttle response.

7. Better Starting Performance: If carbon buildup has been affecting the engine’s ability to start smoothly, cleaning the intake valves can improve cold starts and overall starting performance.

8. Maintenance of Warranty: For some vehicles, regular maintenance including intake valve cleaning can be important for maintaining manufacturer warranties. It’s always a good idea to check the vehicle’s service recommendations and warranty requirements.

Regular intake valve cleaning can be a valuable part of your vehicle’s maintenance routine, especially if you notice symptoms of carbon buildup.

Intake Carbon Cleaning at Our Oshawa and Scarborough Shops

We perform intake carbon cleaning (walnut blasting) at both of our shops. Drivers in Oshawa, Whitby, Courtice and Bowmanville can book at our Oshawa shop. Drivers in Scarborough, Markham and Pickering can book at our Scarborough shop. Ajax drivers can use either one.

Both shops are open Monday to Friday, 9am to 6pm. Book in Oshawa (905-432-7584) or book in Scarborough (905-288-7985).

Signs Your Engine May Need a Carbon Cleaning

Direct-injection engines spray fuel straight into the cylinder, so nothing washes the carbon off the intake valves. It builds up over time. Common signs are:

Rough idle
Misfires or a shaky start on cold mornings
Hesitation or slow throttle response
Lower fuel economy
Less power or boost on turbocharged engines
A check engine light with misfire codes

These symptoms can also come from other faults, such as ignition coils, spark plugs or sensors, so we start with a diagnostic when the cause is not clear.

Which Cars Need It?

Any direct-injection gasoline engine can build up intake carbon, whether it is turbocharged or naturally aspirated. We have extensive experience with modern BMW, Audi and Mercedes-Benz engines, and we also clean Volkswagen engines. Not sure if your car is direct injection? Send us the year, make and model.

Carbon Cleaning FAQ

What is intake carbon cleaning (walnut blasting)?

It is a service that removes baked-on carbon from the intake valves and ports of direct-injection engines using crushed walnut shells. The shells are hard enough to remove the carbon and soft enough not to damage the metal.

Why can’t a fuel additive do the same job?

On a direct-injection engine the fuel is sprayed into the cylinder and does not wash over the intake valves, so fuel additives do not remove this carbon. It needs to be cleaned off physically.

How do I know if my car needs a carbon cleaning?

Rough idle, misfires on cold starts, hesitation and lower fuel economy are common signs. Call us with your car and what it is doing, and we will tell you whether a cleaning makes sense or whether a diagnostic should come first.

How much does a carbon cleaning cost?

The cost depends on the engine and how much carbon has built up. Send us your year, make and model and we will give you a quote.

Do you clean turbocharged engines?

Yes. We specialize in turbocharged direct-injection engines and have extensive experience with modern BMW, Audi and Mercedes-Benz engines.

Is the work covered by a warranty?

Yes. Our work is covered by our 1-year warranty.

Can I finance a carbon cleaning?

Financing is available on repairs and services for vehicles less than 10 years old, with no credit check. See the financing details.

Expert Knowledge And Expansive Selection, Only At Parts Plug

At Parts Plug we have years of combined motorsport and dealership experience, this means we know firsthand what our customers expect and have made it our mission to offer unrivalled quality, value and customer service. All the parts we use are either OEM from the dealer or a high quality aftermarket alternative, the choice always rests with the customer and we stand behind our work which is why we offer one of the best warranties available with 1 year coverage on parts and labour.


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