How do I install an air filter? - 1997 Dodge Ram 1500 Club Cab

This filter is an optional item and may or may not be dealer installed.

The procedures in this article are typical of most Misubishi vehicles.

REMOVAL & INSTALLATION

1. The filter is located behind the glove compartment. Open the glove compartment, (disconnect damper rod, if equipped) push on the sides while pulling down to release the latches. Allow the glove box to swing down on its hinges.

2. Remove the 2 air filter screws.

Some vehicles may not have an installed cabin air filter, but may have a sealed filter compartment. In such cases, the sealed compartment will need to be punched-out and a new air filter frame acquired before a cabin air filter can be installed.
NOTE:
The filter is optional and may not be installed in all vehicles. If the filter compartment is sealed as shown, use a flat head screwdriver to punch through the perforated plastic cover. Some vehicles may not have the filter frame pre-installed in the compartment. If so, accquire the filter frame before installing filter element.

3. Remove cabin air filter. Remove the old filter frame (if present) by sliding it out towards you. Remove old filter from its frame and install new filter, ensuring that Air Flow arrow is pointing down.

4. Install in reverse order.

How many air filters does. A olds 2001 alero have

Is a 2.2 should be on the passenger side by the strut mount
2.4 is the same

COULD INSTALL AIR FILTER IN WRONG OR LEFT SOME THING ELECTRICAL DISCONNECTED AFTER INSTALLING NEW AIR FILTER. COULD NEED SCANNER TO ERASE CODE AFTER REPLACING AIR FILTER.

The 2001 model Aztex has 2 cabin filters, they usually come 2 to a box when you buy them.
The charcoal carbon filters are the best.

Removal:

•Open the IP compartment door.
•Remove the rear inside IP compartment door.
•Open the HVAC module assembly access door
•Remove the RH passenger compartment air filter from the HVAC module.
•Slide the LH passenger compartment air filter to the HVAC module opening.
Remove the LH passenger compartment air filter from the HVAC module.

Installation Procedure:

•Install the LH passenger compartment air filter into the HVAC module opening.
Slide the LH passenger compartment air filter toward the left side of the HVAC module.
•Install the RH passenger compartment air filter into the HVAC module opening.
•Close the HVAC module assembly access door.
•Install the rear inside IP compartment door.
•Close the IP compartment door.

I Hope this information is helpful.

Toyota doesn't publish instructions for that. Its checked and installed for free as a courtesy on an oil and filter replacement, at good repair shops. You took it apart, I'm sure you can figure it out. People that aren't auto mechanics, think everything's so simple.

Place the ignition switch in the Off position, remove the supplemental inflatable restraint fuse from the rear fuse panel. On 1997 models, the rear fuse panel is located in the luggage compartment. On the 1998-2003 models, the rear fuse panel is located under the rear seat. Remove the two retaining screws from the rear edge of the left sound
insulator. Push in on the snap tabs to release the insulator. Disconnect the left sound insulator electrical connectors, then remove the insulator. Twist the shift cable grommet and position away from the cabin air filter access door. It may be necessary to cut the tie strap and peel back the foam insulation to position the grommet away from the door. Remove the cabin air filter access cover from the A/C and heater module.

Remove the tape, then pull out the first cabin air filter element using the filter tab. Remove the tape, then pull out the second cabin air filter element using the filter tab. Remove the tape, then pull out the third cabin air filter element using the filter tab.

To ease installation, lubricate the new filter guides with silicon spray. Install the first clean air filter into the case. Using a long thin blade screw driver and filter tab, raise the filter until it is parallel with the A/C and heater module. Ensure the leading edge of the filter engages the filter case holding rib. Engage the new second cabin air filter in the tab of the first filter. Slide the second filter into the remaining channels of the first filter. Using the filter tab, raise the filter until it is parallel
with the A/C and heater module. Ensure the leading edge of the filter engages the filter case holding rib. Engage the third new cabin air filter in the tab of the second filter. Slide the third filter into the remaining channels of the second filter. Fold the tab of the second filter down. Fold the tab of the third filter up and over the second filter.

Install the A/C and heater module filter cover. Ensure the cover is properly seated. position the shift cable grommet. Position the left sound insulator to the instrument panel, then connect the electrical connectors. Install the left sound insulator fasteners. Torque the fasteners to 18 inch lbs. Be sure to install the fasteners in the proper locations, then install the SIR fuse. From a position off to the side of the air bag module, place the ignition switch in the "On" position. The air bag warning lamp should flash 7 times and then turn Off. Place the ignition switch in the "Off" position.

this can be a pain for sure if attempting with air intake hose still installed on filter housing cover. try to loosen hose clamp remove intake hose and reassemble.

Open glove compartment. Press inward at both sides of the glove compartment, then lower the glove compartment.Remove the lower side instrument panel and crash trim pad. Remove the four glove compartment upper cover retaining screws, then the cover. Remove the two glove compartment retaining bolts, then the glove compartment. Press on the cabin air filter cover tab, then remove the cove
Remove the cabin air filter from the blower unit opening. Install a new cabin filter, ensuring the air flow marking is facing in the proper direction. Install the cabin air filter cover, ensuring the cover is properly installed.
Position the glove compartment to the instrument panel, then install the two retaining bolts. Install the glove compartment upper cover. Install the lower side instrument panel crash pad. Lift the glove compartment into position. Close the glove compartment.

they are @ $25 on ebay.

your behicle did not come with one from the factory.

SECTION 412-01: Air Distribution and Filtering 2001 F-150 Workshop Manual
DESCRIPTION AND OPERATION Air Distribution NOTE: A cabin air filter is available as a dealer installed accessory for the air distribution system of this vehicle. The instructions for installation and servicing of the cabin air filter are included with the filter when purchased.