Is Injector Failure Inevitable in Highlander?

2 Answers
StLawson
07/29/25 1:17am
Injector failure in the Highlander is not a common occurrence and only affects individual vehicles. Below is relevant information about automotive fuel injectors: 1. Consequences of Injector Clogging: When injectors are slightly clogged, it can impact vehicle performance. For vehicles with poor condition or extended mileage, prolonged neglect of injector cleaning will worsen this clogging phenomenon. This leads to insufficient fuel injection, improper spray angle and atomization, resulting in poor engine performance during idling, acceleration or full-load conditions. Consequently, engine power decreases, fuel consumption increases, emissions rise, and in severe cases may render the engine inoperable. 2. Injector Maintenance: The maintenance interval should be determined based on vehicle condition and fuel quality. Generally, it's recommended to clean injectors every 20,000-30,000 km. For well-maintained vehicles using high-quality fuel, this interval can be extended to 40,000-60,000 km.
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VictoriaRose
08/12/25 5:26am
I've been driving for over a decade, and for SUVs like the Highlander, fuel injector failure isn't necessarily inevitable. In most cases, it's closely related to fuel quality—think about it: if you consistently use low-octane or heavily watered-down gasoline, the impurities can easily clog the fuel injectors, causing the car to shake or lose acceleration power. From my own experience, choosing reputable gas stations and using 95-octane or higher gasoline can significantly reduce these issues. Additionally, driving habits are crucial: avoid frequent short trips in the city where the engine doesn't warm up properly, as carbon buildup accelerates; occasionally take the highway to flush the system clean. For maintenance, don't skimp on small expenses—get a fuel injector cleaning every 10,000 kilometers and add a bottle of cleaner to the fuel tank. The Highlander is generally quite durable, but if you neglect it, problems will come knocking. It's not something that has to happen.
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