
EGR Cleaning Sydney — Valve & Intake Manifold
Your mechanic quoted you for a new EGR valve. In most cases it doesn’t need one — it needs the carbon off it.
The valve, the cooler and the intake manifold come off the engine, get cleaned by hand on the bench, and go back on. The throttle body is cleaned by hand too. You see photographs of every part, before and after.
EGR & Intake Manifold Cleaning
Quoted
- Cleans
- EGR, cooler, manifold and throttle body
- Then
- A hydrogen clean
- Before we start
- Free assessment
- Price
- Fixed before work starts
We’ll tell you if a cheaper clean will do the job.
What a blocked EGR actually feels like
Symptoms
- Rough or hunting idle, worst at traffic lights
- Black smoke under load
- Flat spot or hesitation on acceleration
- Limp mode, or a check engine light that comes back after a reset
- Failed emissions on a pink slip
Bring it in and we’ll scan it. If it’s not the EGR, we’ll tell you what it is.

Nobody needs a new EGR valve as often as they’re sold one
Clean it or replace it?
A replacement EGR valve runs $800–$1,500 fitted. It’s the quick answer, and for a workshop that doesn’t do carbon work it’s often the only answer they have — because cleaning one properly means taking the intake side of the engine apart, and that’s a specialist job.
Most of the valves we see aren’t worn out. They’re buried. Once the carbon is off, they work.

The valve stem, buried in soot

Same port, cleaned by hand

We’ll tell you to replace it if the valve is seized, the motor or sensor has failed, or the body is cracked or scored past sealing — and we’ll show you the part and quote before we order anything.
From the outside, a fouled manifold looks normal
The bit people don’t expect
Nothing leaks, nothing rattles, nothing looks wrong.
Cut one open and the passages are half the size they should be — lined with carbon that’s baked hard over years of short trips and stop-start traffic. The engine is trying to breathe through it.
That’s why we photograph every job. Most people don’t believe how much comes out until they see what came out of theirs.

EGR valve, lost in its own build-up

Same valve, cleaned by hand

Throttle body packed with carbon

Same throttle body, cleaned by hand
What comes off
The work
Every part is cleaned by hand and checked. Nothing is sprayed through and hoped over.
Then the engine gets a hydrogen carbon clean. Once the parts are back on, we run a hydrogen clean through the engine — so the combustion chamber and exhaust side are cleared too, not just the parts that came off.
If a part is worn out rather than dirty, we’ll show you and quote for it before we order anything.
EGR valve
Off the engine, cleaned by hand on the bench, checked and refitted.
EGR cooler
Off the engine and cleaned by hand, so the exhaust gas flows and cools properly again.
Intake manifold
Off the engine, every passage cleaned by hand on the bench.
Throttle body
Cleaned by hand, the carbon dug out of the bore and off the butterfly plate.

Four steps, and you see every part
The process
- 01
Bring it in
We scan it and take a proper look — no charge, no obligation.
- 02
You get a quote
What it costs to do your car, before anything starts. Nothing happens without your OK.
- 03
The work gets done
Parts off, cleaned by hand, back on, codes cleared.
- 04
You see the photos
Before and after, every part.
See what’s actually inside
Watch us work
This one had been looked after. Serviced on time, no warning lights, nothing you could point at — it had just quietly stopped feeling like it used to.
That’s how carbon works. It doesn’t break anything. It builds up over years, a thin layer at a time, in the passages your engine breathes through. The power doesn’t disappear, it drains — so slowly that most people put it down to the car getting old.
Watch what came out of it at 366,000 km. The parts come off, the carbon comes off by hand, then everything goes back on and the engine gets a hydrogen clean to clear what’s left further in. The owner got a car back that drove the way they remembered it.
Watch on YouTubeSee what’s inside
Mercedes E350, 366,031 km on the clock. Every part you see came off a car that was being driven every day.
Twice as much to come off
A V8, two EGR valves
A V8 has two EGR valves, one for each bank — so there’s twice as much to come off and twice as much to clean. This is what the intake side of a working diesel looks like inside.
Nothing in this video is broken. No fault code brought this car in. From the outside a fouled intake manifold looks exactly like a clean one, which is why we photograph every job — it’s the only way to show you what was actually in there.
Watch on YouTubeSee what’s inside
Toyota LandCruiser V8. Every part you’re looking at was still bolted to a car that was driving around Sydney.
EGR valve and intake manifold jobs
Watch us work
Every one of these is a customer’s car at our Kings Park workshop. See what comes out of an EGR valve and intake manifold before you book.
Watch LDV Intake Manifold Cleaning System On on YouTubeLDV Intake Manifold Cleaning System On
Watch Isuzu EGR and DPF Cleaning on YouTubeIsuzu EGR and DPF Cleaning
Watch more EGR jobs
Watch Engine Carbon Cleaning in Sydney Before and After on YouTubeEngine Carbon Cleaning in Sydney Before and After
Watch Mitsubishi Triton Intake Carbon Cleaning on YouTubeMitsubishi Triton Intake Carbon Cleaning
What Customers Say
Reviews
Why there’s no price on this page
Pricing
Because we’d be guessing, and you’d be the one paying for a bad guess.
The cleaning itself is predictable. Getting to the parts isn’t. On some engines the intake manifold is off in an hour. On others it’s most of a day, and there are things in the way that have to come off first.
EGR & Intake Manifold Cleaning
Quoted
- Assessment
- Free, before any work
- Price
- Fixed, agreed before we start
- What sets it
- How hard the parts are to get to
- If it’s not the EGR
- We tell you what it is
Popular vehicles for EGR valve and intake manifold cleaning
What we see most
These are the diesels we see most often with carbon in the EGR valve and intake manifold.
Is EGR and intake cleaning the right service for you?
Not sure?
We scan your car first — if a chemical clean will do the job, that’s what we’ll tell you.
Full Engine Carbon Clean
$715from
- Best for
- Most engines
- Method
- Chemical, engine left together
- Time
- One day
- Choose it when
- Rough idle, black smoke, sluggish off the line
EGR & Intake Manifold Cleaning You’re here
Quoted
- Best for
- The step up, when chemical isn’t enough
- Method
- Parts off, cleaned by hand
- Time
- Depends on the engine
- Choose it when
- A chemical clean came back, the build-up won’t shift, a part is suspect, or something needs replacing anyway
Something else going on?
Any engine
Petrol, diesel or hybrid
- Nothing’s actually wrong — you just want to stay on top of it
- Hydrogen Carbon Clean
- Rough idle, black smoke, sluggish off the line
- Full Engine Carbon Clean
- You’ve been quoted for a new EGR valve, or a chemical clean didn’t hold
- EGR & Intake Manifold Cleaningyou’re here
- Power loss, rough idle or misfires — and fuel additives made no difference
- Walnut Blasting
Diesel only
- “Exhaust Filter Full” on the dash, limp mode, or regens that don’t hold
- DPF Cleaning
- Heavy fuel use and smoke on acceleration, worse under load
- Diesel Injector Cleaning
Ask Nas which one:
Not on this list: car servicing — oil changes, filters, regular maintenance — and Pink Slips (eSafety inspections), done while the car is already with us. Mention it when you book.
Sydney’s Carbon Cleaning Specialists
Why Choose Us
-
Nas does the job himself
Not handed to an apprentice.
-
MTA certified, 20+ years
Two decades of carbon cleaning, not a side service.
-
We clean rather than replace
You keep your parts. We only replace something when it has actually failed.
-
We scan first and quote before starting
Nothing happens without your OK.
Questions
FAQ
Clean your EGR instead of replacing it
Bring it in and we’ll scan it, tell you whether a chemical clean will do the job, and quote you either way. Nothing happens without your OK.





