How many ignition coils does the 2007 Lexus ES350 have?
The 2007 Lexus ES350 uses six ignition coils—one for each cylinder. This coil-on-plug setup is standard for its 3.5-liter V6 engine.
In the ES350, the engine is the 2GR-FE, a 3.5L V6 that employs a distributorless ignition system with six independent coil packs. Each coil sits directly atop a spark plug (coil-on-plug), delivering the spark to its corresponding cylinder and enabling precise ignition timing. This design reduces maintenance compared to older distributor-based systems and allows individual coil replacement if a single coil fails.
Ignition coil layout and technology
Key facts about the ES350 ignition coils include the following:
- Cylinder count and coil-per-cylinder: 6 coils total, one for each cylinder (1–6).
- Engine family: 2GR-FE, a 3.5 L V6 used in the 2007 ES350.
- Ignition type: coil-on-plug (COP), with each coil directly atop its spark plug and no distributor.
- Maintenance implications: if a coil fails, the affected coil is typically replaced rather than the entire set.
- Common symptoms of a bad coil: misfires, rough idle, reduced power, or a check engine light with cylinder-specific codes.
- Replacement considerations: coil packs vary in price; replacing a single coil is common, and OEM vs aftermarket options exist.
These points help explain how the ES350’s ignition system is structured and what owners can expect in terms of diagnostics and upkeep.
Maintenance and diagnostic considerations
When a coil fails, technicians usually isolate the issue to the individual coil or spark plug in the affected cylinder and replace only the faulty unit. Since the ES350 uses six independent coils, targeted replacement minimizes downtime and expense compared with systems that require replacing multiple components at once. Regular diagnostic scans can identify coil-related misfires before they cause broader engine problems.
Summary
In short, the 2007 Lexus ES350 has six ignition coils, one per cylinder, configured in a coil-on-plug arrangement on the 2GR-FE 3.5L V6. This setup provides precise ignition timing, straightforward maintenance, and the ability to replace individual coils as needed.
