10–15 min

Easy

$20

How to Replace Engine Air Filters

Replacing your engine air filter keeps engines breathing clean air, which improves fuel economy, prevents costly engine damage, and reduces downtime across your fleet. A simple 10-minute task can make a big difference in performance and savings.

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Ever wondered why your engine feels sluggish or your fuel costs are rising? The answer might be sitting under your hood, a dirty air filter. Replacing it is one of the simplest ways to keep every vehicle in your fleet running efficiently.

When to Replace Your Engine Air Filter:

Check your engine air filter every 12,000–15,000 miles, or more often if you drive in dusty or polluted areas.
You’ll know it’s time when you notice:

Reduced acceleration or rough idling
Unusual engine sounds
Decreased fuel efficiency
A visibly dirty or dark filter when inspected

Tools Needed

Screwdriver

Socket wrench

New air filter

Gloves

Shop rag

How to Replace Engine Air Filters

Step 1: Locate the Air Filter Housing

Open the hood and find a black plastic box near the top or side of the engine.
It’s usually secured with metal clips or screws.

Step 2: Remove the Air Filter Cover

Unclip or unscrew the housing lid to open it.
Lift the cover carefully so you don’t damage any attached wires or hoses.

Step 3: Take Out the Old Filter

Pull out the old filter gently.
Check for dust, dirt, or debris buildup, a dark or clogged filter means it’s time to replace.

Step 4: Clean the Housing Area

Before placing the new filter, use a shop rag to wipe out any dust inside the housing.
This ensures the new filter sits cleanly and seals properly.

Step 5: Install the New Air Filter

Place the new filter in the same direction as the old one.

Reattach the cover securely — clips should snap, or screws should fit snugly.

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Pro Tip: Label the housing with the replacement date using a marker. It’s an easy reminder for your next scheduled check.

Common Mistakes

Installing the wrong filter type or size, which can reduce airflow and affect performance.

Forgetting to seat the filter properly, allowing unfiltered air to enter the engine.

Skipping regular checks, which can reduce fuel efficiency and power over time.

Ignoring signs of a clogged filter, such as poor acceleration or unusual engine sounds.

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How to manage replacement across your fleet?

Set automated reminders for inspection intervals in your maintenance system.

Track replacement dates and filter types per vehicle.

Train drivers to spot early signs of a clogged filter.

Keep a small stock of filters on-site for quick swaps.

How to Replace Engine Air Filters

Simply Fleet

November 3, 2025

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How to Replace Engine Air Filters

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How to Replace Engine Air Filters