What is HONDA VTEC?
Honda VTEC (Variable Valve Timing and Lift Electronic Control) is a technology that was introduced by Honda in the late 1980s. VTEC is a type of valve train technology that allows for greater efficiency and power in internal combustion engines. This technology has been widely used in Honda engines since its inception, and it has become synonymous with Honda's performance and reliability.
How VTEC Works
VTEC works by adjusting the intake and exhaust valve timing and lift, depending on engine speed and load. In low RPMs, the engine operates in a "normal" mode, with the intake and exhaust valves opening and closing in a conventional manner. But as the engine speed increases, the VTEC system engages, changing the camshaft profile to open the valves for a longer duration and at a greater lift, allowing for more air and fuel to enter the engine, and increasing power output.
Common Failure Points of Honda VTEC
While VTEC technology is generally reliable, there are a few common failure points to be aware of. One common issue is the failure of the VTEC solenoid. The VTEC solenoid controls the flow of oil to the VTEC system, and if it fails, the engine may not engage the VTEC system correctly, leading to a loss of power and efficiency.
Another common issue is the failure of the VTEC oil pressure switch. The oil pressure switch is responsible for monitoring the oil pressure in the VTEC system, and if it fails, the engine may not engage the VTEC system correctly, leading to a loss of power and efficiency.
Symptoms of a Failing VTEC System
There are several symptoms that may indicate a failing VTEC system. These include:
- Loss of power: If the VTEC system is not engaging correctly, the engine may not produce the same level of power that it did before.
- Rough idle: If the VTEC system is not working correctly, the engine may have a rough idle or may even stall.
- Reduced fuel efficiency: If the VTEC system is not working correctly, the engine may not be operating as efficiently as it should, leading to reduced fuel efficiency.
- Check engine light: If the VTEC system is not working correctly, the check engine light may come on. The engine control module (ECM) will detect an issue with the VTEC system and store a trouble code in its memory, triggering the check engine light.
Honda's VTEC technology has been a hallmark of Honda's performance and reliability for many years. While it is generally a reliable system, it's important to be aware of the common failure points and symptoms of a failing VTEC system. If you're experiencing any of the symptoms mentioned in this article, it's important to have your vehicle inspected by a qualified mechanic to diagnose and repair any issues with the VTEC system. By staying on top of maintenance and addressing any issues promptly, you can ensure that your Honda continues to deliver the power and efficiency that Honda VTEC technology is known for. Call Green’s Garage today, 305-575-2389, to schedule an appointment with our ASE certified team.