Parts for your 2008 Toyota Camry-Spark plugs

2008 Toyota Camry spark plugs — what they do and when to change them

Based on Toyota technical literature — the 2008 Camry Owner’s Manual for AU/NZ markets and the factory engine repair manuals for the 2AZ-FE (2.4 L), 2AZ-FXE Hybrid (2.4 L Atkinson), and 2GR-FE (3.5 L V6) — this model uses spark plugs. All these petrol engines rely on iridium long-life plugs and coil-on-plug ignition, so spark plugs are absolutely relevant to a 2008 Toyota Camry.

Spark plugs ignite the air–fuel mix in each cylinder. In the 2008 Camry’s engines, modern iridium-tipped plugs deliver a strong, consistent spark with minimal wear, which helps with smooth idle, decent fuel economy, and reliable cold starts. The car’s ignition coils sit directly over the plugs (no leads to fuss over), so good plugs help keep coil stress and misfires in check.

Toyota specifies long-life iridium plugs for this generation. The replacement interval varies by engine and market schedule, but it’s commonly in the long-service band — typically around 100,000 to 160,000 kilometres. Check the service booklet or the under‑bonnet label for the exact interval that applies to the vehicle. Hybrid models still need the same attention, as their petrol engine also uses standard spark plugs.

• Typical signs they’re due: rough idle, sluggish pick‑up, poorer fuel economy, harder starting, or a check‑engine light with misfire codes.
• Quantity: 4 plugs on the 2.4 L (including Hybrid), 6 plugs on the 3.5 L V6.

When replacing, stick with the correct iridium part number and heat range listed by Toyota for the specific engine. Avoid mixing types or fitting cheaper copper plugs, they won’t last as long and can upset how the engine runs. Replace the full set at once.

Service tips the workshop will follow: work on a cold engine, blow out plug wells before removal, and thread the new plugs by hand to avoid cross‑threading. Most iridium plugs are pre‑gapped, don’t force the gap closed or open. Toyota generally doesn’t recommend anti‑seize on plated plug threads, torque to spec from the manual using a quality torque wrench. A quick look at the coil boots is smart — if they’re cracked or oily, replace them to prevent future misfires.

For Camrys that see lots of short trips or idling, bringing the plug change forward a little from the maximum interval can keep it running sweet and help protect the catalytic converter from raw-fuel misfires.

FAQs

How many spark plugs does a 2008 Toyota Camry have?

The 2.4 L four‑cylinder (including the Hybrid) uses four spark plugs — one per cylinder. The 3.5 L V6 variant uses six spark plugs. If it’s the Aurion V6 (same 2GR‑FE family), it’s six as well.

What spark plug type and gap should be used?

Toyota specifies long‑life iridium plugs for this model. They come pre‑gapped for the engine and usually shouldn’t be adjusted. Always match the exact part number and specs shown on the under‑bonnet label or in the owner’s handbook.

Can spark plugs be cleaned instead of replaced?

Light deposits can be blown off, but abrasive cleaning shortens life and can damage the fine iridium tip. Given the long service interval, replacement with the correct iridium plugs at the scheduled kilometre mark is the better bet for performance and reliability.