Toyota LandCruiser Intake Carbon Clean and Injector Replacement

Vehicle Complaint: Sluggish Performance and Towing Issues

Recently, we had a Toyota Land Cruiser in the workshop for inspection after the owner reported sluggish performance and difficulty towing their caravan—something the vehicle had previously done with ease. Given the Landcruisers reputation for reliability, we knew something wasn’t right and set out to diagnose the issue.

Diagnosing the Issue: Carbon Buildup and Worn Injectors

Upon closer examination, we discovered severe carbon and soot buildup in the throttle valve, intake manifold, and intake ports. This level of contamination was restricting airflow, which in turn was affecting the engine’s efficiency and power delivery. Further investigation revealed that the original fuel injectors, which had clocked over 200,000 kilometres, were well past their prime. The injector nozzles, in particular, were significantly worn and damaged, leading to poor fuel atomisation and inefficient combustion.

Injector Replacement: Restoring Fuel Delivery

After discussing the findings with the customer, we proceeded to replace the worn injectors with high-quality, flow-tested exchange units fitted with brand-new spray nozzles. This ensured optimal fuel delivery and restored combustion efficiency.

Additional Issues Discovered: Fuel Pipes, Intake System, and Rocker Cover Leak

While continuing our inspection, we found additional issues that required immediate attention. The fuel pipes exhibited signs of rust, which posed a risk of contamination and potential fuel leaks. The intake rubber sleeve had developed cracks, compromising the integrity of the intake system and potentially allowing unfiltered air to enter. Additionally, the rocker cover was leaking, which not only caused minor oil loss but also contributed to carbon buildup in the intake system.

Oil Catch Can Installation Services

We’re more than intake cleaning experts!

Worried about carbon build-up or oil contamination? Book a diagnostic service today. Our services include oil catch caninstallation, intake carbon removal, injector servicing, EGR valve cleaning, and ECU tuning. We specialise in European cars like BMW, Mercedes, and Audi. Reach out to us now!

Repairs and Comprehensive Intake Clean

To rectify these issues, we replaced the rusted fuel pipes, fitted a new intake rubber sleeve, and resealed the rocker cover to prevent further leaks. With all mechanical concerns addressed, we then performed a comprehensive intake clean, thoroughly removing all carbon and soot deposits. This process restored unrestricted airflow to the engine, improving bothpower output and overall drivability.