How to Replace Spark Plugs — 2022-2025 Jeep Grand Cherokee

Replacing spark plugs on your 2022-2025 Jeep Grand Cherokee is a key maintenance task to ensure smooth engine performance, prevent misfires, and maintain fuel efficiency, typically needed every 30,000-60,000 miles depending on the engine. This DIY repair can save you significant costs, with parts ranging from $40-$80 compared to shop costs of $150-$300 including labor. With the right tools and this guide, most DIYers can tackle this job confidently. DIY Cost: $40-$80 | Shop Cost: $150-$300

You’re done. Clear any stored codes with your scanner and complete a normal drive cycle so the vehicle’s readiness monitors reset.

If the code returns, the root cause likely wasn’t the part you replaced — go back through the diagnostic steps before swapping anything else.