Lexus Fuel Induction System
Lexus Fuel Induction System
Throttle body cleaning, intake manifold cleaning, fuel system treatment.
Service Interval: 15k or more
Society of Automotive Engineers claim that service intervals of 15k miles may be beneficial to the vehicle. Many vehicles have no suggestion for this service at all.
Why do we replace/service:
EGR and PCV systems allow combustion gases and contaminants to enter the intake tract. These are typically dirty, oily gases which accumulate over time on the throttle plate, walls of the intake manifold, injector nozzles and the backside of the intake valves. Servicing cleans the throttle body and adds a detergent into the vacuum line system while the vehicle is running, in order to clean the intake manifold and valves.
What happens if we don’t service:
Over time, the build up causes decreased fuel mileage and can cause odd idle problems and poor power delivery. Left unchecked, other failures in the EGR system and sensors inside the throttle body may cause severe drivability concerns.
General Recommendations:
The better quality of fuel you run, the less you may need to do this service, as valves generally stay cleaner with higher quality gasolines (higher quality, not higher octane). Regardless what type of fuel you use, the gases from the EGR and PCV system will still accumulate on the throttle plate and intake manifold (they are before the injectors).
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