Smoke Leak Diagnostic
Locate hidden intake, boost, and vacuum leaks with a professional smoke test. If you have rough idle, turbo lag, or unexplained fault codes, a smoke leak diagnostic is the fastest way to find the real cause and restore performance.
Common Symptoms
- -Rough idle or stalling
- -Turbo lag or weak boost
- -Whistling or hissing noises
- -Poor fuel economy
- -Misfires under load
- -Check engine light or fault codes
- -Failed emissions test
- -Inconsistent power delivery
We isolate leaks quickly and accurately.
What is a Smoke Leak Diagnostic?
A smoke leak diagnostic introduces low-pressure, non-toxic smoke into your intake or vacuum system. Any leaks allow smoke to escape, making them visible so we can pinpoint the exact location. This method is far more accurate than guesswork, spray tests, or chasing fault codes without clear confirmation.
Leaks can cause unmetered air, incorrect fuel trims, turbo lag, and persistent check engine warnings. Finding and fixing them protects performance, efficiency, and long-term reliability.
Benefits of Smoke Testing
A quick diagnostic today can prevent expensive repairs later.
Find Hidden Leaks Fast
Smoke highlights even the smallest leaks that are impossible to locate by eye.
Restore Performance
Fixing leaks restores boost response, torque delivery, and smooth driving.
Prevent Costly Damage
Unmetered air and lean running can damage turbos and engines over time.
Accurate Diagnostics
Stop guessing. Get a clear report of leak locations and recommended fixes.
Better MPG
Eliminate wasted fuel from incorrect air-fuel ratios caused by leaks.
Mobile Convenience
We can test at your home or workplace across Southampton, the New Forest, and surrounding areas.
Systems We Check
Our smoke test covers the most common leak areas on petrol and diesel vehicles.
Our Smoke Leak Process
Initial Inspection
We confirm symptoms and identify the correct system to test.
System Sealing
We seal the intake or vacuum system to build controlled pressure.
Smoke Introduction
Diagnostic smoke is introduced to reveal leak points.
Leak Identification
We mark all leak locations and capture evidence if needed.
Report & Next Steps
You receive a clear report and repair recommendations.
Smoke Leak Diagnostic FAQs
What is a smoke leak diagnostic?
A smoke leak diagnostic uses a safe, visible smoke to pressurize the intake or vacuum system so leaks can be located quickly and accurately.
How long does the test take?
Most vehicles take 30 to 45 minutes depending on access and system complexity.
Can you test turbo and boost leaks?
Yes. We can test the intake and boost system to identify leaks that reduce boost pressure and performance.
Will this fix my problem?
The test identifies leak locations. We will provide a clear repair plan or quote to fix the issues found.
Is the smoke safe for my engine?
Yes. We use professional, non-toxic diagnostic smoke designed specifically for automotive systems.
Fix Leaks Before They Cost You
Book a professional smoke leak diagnostic and get a clear repair plan.
Book Smoke Leak Test