AUTOOL HTS558 Engine Intake & Valve Carbon Cleaner

Professional Intake Valve & Manifold Decarbonizing

The AUTOOL HTS558 Car Engine Carbon Deposition Cleaner is a dedicated walnut-blasting system for intake manifolds and the back side of intake valves. Using an external compressed air source and recyclable walnut shell media (not included), it delivers consistent, controlled impact to remove stubborn carbon deposits without damaging delicate engine components.

Designed for workshops and garages, the HTS558 integrates spraying and recovery in one closed-loop unit. The built-in dust filtration system separates carbon debris from walnut grit, allowing the media to be reused multiple times. With a 13L capacity, 1200W power, and an efficient vacuum system, it supports fast, repeatable cleaning cycles on modern multi-cylinder engines.

Usage & Performance Benefits

The HTS558 connects to a high-pressure air pump (required, not included) and is used with 0.4-0.8 mm walnut media. With the intake manifold removed and the intake valve closed, walnut grit is blasted into the intake port while the vacuum simultaneously recovers the media and loosened carbon. A typical port takes 1-3 minutes depending on deposit severity. Regular cleaning (every 40,000-50,000 km) helps restore air-fuel ratio, stabilize idle, improve combustion efficiency, and reduce fuel consumption and emissions.

Why It's a Smart Choice

• Non-corrosive cleaning method - Walnut media removes carbon mechanically, avoiding the pipe corrosion and seal degradation associated with aggressive chemical cleaners.
• Closed-loop blasting & recovery - Integrated spray and vacuum system reduces mess, improves workshop safety, and allows walnut media to be reused 5-10 times.
• Built for professional workflows - 13L capacity, external air connection, and a 3-year parts warranty (non-human damage) support frequent use in automotive service environments.

FAQ

Q: What equipment and consumables do I need to use with the HTS558?
A: You will need a high-pressure air pump with at least 0.7 MPa (7 bar / 102 PSI) output and 0.4-0.8 mm walnut shell media (2-4 kg). Neither the air pump nor the walnut media is included.

Q: Which engine components can this machine clean?
A: The HTS558 is designed specifically for intake ports and the back side of intake valves. For injectors, throttle bodies, or combustion chambers, AUTOOL CT150, CT200, or C100 are recommended instead.

Q: Is it safe for modern engines with sensitive intake systems (e.g. Valvetronic)?
A: Yes. Walnut media is harder than carbon but softer than metal, so it effectively removes deposits without damaging intake ports or valves when used as directed and with valves fully closed.

Q: How often should intake carbon deposits be cleaned?
A: For most vehicles, cleaning every 40,000-50,000 km is recommended, or sooner if symptoms such as rough idle, loss of power, or increased fuel consumption are present.