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Chevrolet Colorado Engine Air Filter Replacement Guide
How to change the engine air filter element for the LFX or LGZ 3.6L V6 in a 2015 to 2019 GM Chevy Colorado truck.

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2019 Colorado LGZ 3.6L
Engine Air Filter Box
Loosen Counterclockwise
This automotive maintenance tutorial was specifically written to assist owners of the second generation (2015, 2016, 2017, 2018, 2019 and probably also the refreshed 2020 model year) GM Chevrolet Colorado truck in cleaning or changing the air filter element for LFX or LGZ 3.6 liter V6 engine. The procedure should be the same or very similar for the Ecotec LCV 2.5L I4 engine or the 2.8L Duramax turbodiesel inline four cylinder engine.

Owners of other General Motors vehicles from Chevrolet, GMC, Cadillac, Buick and Holden such as the Trax, Equinox, Traverse, Blazer, Tahoe, Suburban, Sonic, Cruze, Trailblazer, Spark, Malibu, Impala, Volt, Bolt, Corvette, Camaro, Silverado, Express, Regal, LaCrosse, Cascada, Encore, Enclave, Envision, Canyon, Sierra, Terrain, Acadia, Yukon, XT4, XT5, XT6, Escalade, CT5, CTS, XTS, CT6, ATS, Astra and Commodore may also find these DIY instructions to be helpful.

A few compatible replacement air filters for the LFX or LGZ 3.6L V6 engines with their compatible replacement part numbers include the following: ACDelco A3195C, K&N 33-5030, EcoGard XA10411, AEM 28-50030 and Purolator A48171.

The only tool needed to access and replace the filter is a standard Phillips head screwdriver or a flat head screwdriver.

The first two steps are to open the hood and then move to the left (passenger) side of the engine bay.

The engine air box is located just in front of the coolant reservoir bottle and behind the passenger side headlight housing.

The air box cover is held in place by four screws.


Front Middle Screw
Rear Middle Screw
Rear Right Corner
The four screws are located at the following areas of the air box cover: front middle, rear middle, rear right corner and front right corner.

Loosen the four screws by turning them in the counterclockwise direction with either a Phillips head screwdriver or you could also use a flat head screwdriver.

The screws are "captured" so they will remain attached to the air box cover.

Lift Up Air Box Cover
Captured Metal Screws
Old Air Filter Exposed
Gently lift up the right side of the air box cover.

Slide the cover towards the right to release the three plastic tabs on the left side of the cover from their slots on the bottom half of the air box.

Pull Out Old Air Filter
Old Air Filter Removed
Inspect Both Sides
Pull the old air filter straight out of the air box housing.

Inspect both sides of the old filter.

If the old filter is dark grey or black and clogged with dirt, dust, sand, insects, leaves, twigs, pollen, soot and other debris, it should be replaced with a new element.

I recommend buying the OEM (original equipment manufacturer) engine air filter which is part number ACDelco A3195C.

If the old filter is relatively clean, just tap out the large debris.

Clean With Vacuum
Clean Out Bottom Half
Install New Air Filter
You could also use a wet/dry shop vacuum to clean out the fine dust or sand from the old air filter.

Check the bottom half of the air box and clean out any sand or other debris.

Lower the new air filter into the bottom half of the housing with the pleats facing down and the rubber gasket facing up towards you.

Line Up Tabs & Slots
Slide Tabs Into Slots
Tighten Screws Clockwise
Line up the three black plastic tabs on the left side of the air box cover with their corresponding slots on the bottom half of the air box.

Slide the tabs into their slots while lowering the air box cover.

Tighten the four screws by turning them in the clockwise direction with the Phillips head screwdriver or a flat head screwdriver.

Front Right Screw
Chevrolet-Colorado-Engine-Air-Filter-Replacement-Guide-020 Chevrolet-Colorado-Engine-Air-Filter-Replacement-Guide-021
Right Rear Screw
Only tighten the screws until they are snug.

Try to avoid over tightening the screws to prevent from cracking the plastic air box assembly.

Four Screws Secured
Air Box Cover Secured
Engine Air Filter Replaced
Double check that the four screws are tight.

The two halves of the air box should be flush together with no part of the new filter visible at the edges.

Be sure to write down the filter change in your truck's service records.

(The service interval specification for the engine air filter is every 45,000 miles according to the maintenance schedule in the owner's manual.)

Please check out all of my 2015-2019 GM Chevrolet Colorado DIY Repair & Maintenance Guides.

If you found this guide to be helpful, please consider making a small donation by clicking on the "Donate" button located to the right of this paragraph. Thank you!
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