2018 Chevrolet Silverado-2500hd Air Filter in Murray, UT

It’s in the engine bay inside a rectangular airbox near the front passenger-side fender on most configurations.

Open the hood and look for the plastic airbox connected to the intake snorkel; the lid is retained by clips or screws. Keeping this housing sealed is important because Wasatch Front dust and road grit can bypass a loose cover and affect engine performance. If you prefer a quick confirmation, stop by LHM Chevy Murray at 5500 S State St in Murray.

• Release the metal clips or screws and lift the airbox lid.
• Pull the old filter straight up and note airflow orientation.
• Wipe debris from the housing and install an OEM-spec filter evenly.

Many 2018 Silverado 2500HD trucks were not factory-equipped with a cabin air filter; if present, it’s behind the glove box at the HVAC intake.

Some heavy-duty models use a screen instead of a serviceable filter. You can quickly check by dropping the glove box to look for an access panel on the HVAC case. If the slot exists, the filter slides in horizontally. Visit our Murray location and we’ll confirm fitment by VIN and replace it if equipped.

• Lower the glove box by releasing side stops or the damper cord.
• Remove the small access door (if equipped) to view the filter slot.
• No slot present usually means no cabin filter on this vehicle.

The engine air filter cleans intake air for combustion, while the cabin air filter (if equipped) cleans air for the HVAC that you and your passengers breathe.

Both filters do different jobs: the engine filter protects performance and fuel economy by keeping dust out of the intake; the cabin filter targets pollen and fine particles inside the cab. In Utah’s dusty seasons, keeping each system sealed and clean helps comfort and drivability. OEM-spec filters ensure proper fit and filtration.

• Engine filter: under-hood airbox; affects power and efficiency.
• Cabin filter: behind glove box (if equipped); affects airflow and odor.
• Use OEM Chevrolet (ACDelco) media for correct flow and sealing.

Typical signs include reduced power, worse fuel economy, rough idle, weak HVAC airflow, and musty odors in the cab.

Dust from local construction and canyon drives can load the engine filter, restricting intake flow and throwing off mass-air readings. Inside the cab, a dirty filter (if equipped) will choke airflow and can develop odors from trapped moisture and debris. If you notice these symptoms, have both filters inspected during your next visit to Murray.

• Dark, debris-packed pleats on the engine filter element.
• HVAC fan loud but air volume low from the vents.
• Occasional check engine light related to airflow/MAF issues.

Yes—engine filters are usually DIY-friendly, while cabin filters (if equipped) may require glove box/trim removal that’s easier at the dealership.

Many owners swap the engine element with basic tools in minutes, but professional service adds an intake housing inspection, a visual MAF check, and verification of OEM fitment. Our team in Murray also documents your service and disposes of used media properly. If you prefer convenience, you can schedule service online anytime.

• DIY: simple hand tools for the engine filter; follow airflow arrows.
• Dealer: intake/MAF inspection and proper sealing included.
• Check current service specials before you book.

Follow the maintenance schedule in your owner’s manual, and in the Wasatch Front inspect the engine filter at every oil change.

Gravel roads, towing, plowing, and winter road treatments in northern Utah can load the filter faster than average. A quick light test (looking for even light through the pleats) helps determine condition. We can check it during a multi-point inspection and install an OEM-spec element when needed—just schedule service.

• Increase inspection frequency with off-road or dusty use.
• Replace when light doesn’t pass evenly through the pleats.
• Document changes to maintain consistent service records.

Use the owner’s manual schedule; if your truck isn’t equipped with a cabin filter, no replacement is required.

Where a cabin filter is fitted, seasonal dust and pollen along the Wasatch Front can shorten service life. If you experience reduced airflow or odors, have it checked during your next visit. We can confirm whether your truck has a serviceable cabin filter and replace it with an OEM-spec element if applicable.

• Not all HD models include a cabin filter slot.
• Inspect during spring pollen and after winter road salt periods.
• We’ll verify fitment by VIN at our Murray service drive.

Yes—Larry H. Miller Chevrolet Murray installs OEM Chevrolet (ACDelco) air filters that match factory specifications.

OEM media and gasket designs provide the correct flow and sealing your intake system was engineered for, helping maintain drivability and emissions performance. We stock the appropriate elements for gas and Duramax applications and can confirm part fitment by VIN. Visit our service center in Murray or book online to reserve a bay.

• Exact-fit ACDelco filtration for Chevrolet applications.
• Verified compatibility for your engine and intake housing.
• See current service specials for potential savings.

Larry H. Miller Chevrolet Murray serves the greater Salt Lake City area, including South Jordan, West Jordan, Midvale, and Sandy, with OEM-spec air filter service tailored to local conditions. Dust from canyon drives, construction zones, and winter road treatments can load filters quickly, so our team checks sealing surfaces and intake paths in addition to the filter element itself. Visit our state-of-the-art facility at 5500 S State St, Murray, UT 84107 for fast, accurate service completed by Chevrolet-trained technicians. Want a convenient time? Use our online tool to schedule service, and don’t forget to review current service specials before you arrive for your appointment.

Our air filter service is straightforward, thorough, and documented. We verify part fitment by VIN, then open the under-hood airbox to inspect the existing element, housing, snorkel, and seals. If replacement is needed, we install an OEM-spec filter, ensuring proper seating and lid engagement. We also perform a visual mass airflow (MAF) sensor and intake check to spot contamination or leaks that can affect drivability. If your truck is equipped with a cabin filter, we inspect and replace it as requested, then reassemble trim and confirm HVAC operation. We’ll note the service on your repair order, answer any maintenance interval questions, and invite you to schedule service next time at a convenient interval.

For this heavy-duty Chevrolet, we recommend OEM Chevrolet (ACDelco) engine air filters engineered for the correct airflow, media efficiency, and gasket compression. Where equipped, the cabin air filter should also meet OEM specifications for particle capture and low restriction to maintain HVAC performance. Follow the maintenance schedule in your owner’s manual, and consider more frequent inspections if you drive in dusty areas, tow, or use unpaved roads. Avoid oiled aftermarket filters that can contaminate the MAF sensor and skew airflow readings. Bring your 2018 Chevrolet Silverado-2500hd to Larry H. Miller Chevrolet Murray in Murray for OEM-spec filter service — schedule service.