This guide gives step by step instructions on replacing an air intake boot, though
appearances may vary, the process is the same on most vehicles.
Difficulty Scale: 3 of 10
This article pertains to all cars
Tools and Supplies Needed
- Air intake boot
- Screw driver set
- Wrench set
- Socket set
Begin with the car on level ground, in park with the parking brake set.
- Loosen and remove the clamps that secure
the air intake boot to the air cleaner housing and the throttle body.
Step 2 - Remove breather tubes from the air intake
Removing Air Intake Boot Mounting Clamps
Step 3 - Use a screwdriver and a twisting
motion to help loosen the seal.
Removing Breather Hose
Step 4 - Once the mounting clamps and breather
hoses are removed and loosened, remove the air intake boot.
Disconnecting Air Intake Boot
Step 5 - Match the new boot to the old unit, they
should match up identically. Reinstall mounting clamps onto intake new boot
Air Intake Boot Removed
Step 6 - Reinstall the new air intake boot.
Installing Air intake Boot Clamp
Step 7 - Finish installing air intake boot and
recheck all clamps and hoses. Start engine and listen for any vacuum leaks or hissing
Reinstalling Air Intake Boot
The air intake boot supplies air from the air filter to the throttle body or
plate. If this tube fails it can cause incorrect readings from the mass air flow
sensor MAF which causes the
to run poorly
Completing the Air Boot Installation
The intake boot is usually made of flexible rubber and over time, vibrations
within the engine coupled with natural degradation of the rubber can cause small
cracks that allow air to be pulled into the motor that was not filtered nor accounted
Some of the symptoms of a bad air intake boot are
higher than normal
and poor fuel economy and
Inspect the area between the ribs in the air intake boot by flexing it and looking
for signs of wear. If you can see cracks then replacement is required.
- Keep track of all clamps, nuts and bolts in a container so they don't get
- Inspect intake boot for leaks before and after the job is complete
If further assistance is needed, our certified car repair technicians are ready
to answer your car repair questions for free
Article first published 2016-02-03