Replace or repair the air intake line connecting the air filter housing to the throttle body on a 2012-2017 Toyota Camry 2.5L I4 engine.

Warnings

Tools required

Parts

• Air intake hose assembly × 1 — Use OEM specification
• Hose clamps × 2 — Use OEM specification

Preparation

1. Park vehicle on level surface and apply parking brake
2. Turn off engine and allow to cool completely
3. Open hood and secure with prop rod
4. Disconnect negative battery terminal to prevent accidental electrical shorts

Procedure

1. 1

   Remove engine cover
   If equipped, remove the plastic engine cover by pulling upward on the cover to disengage the mounting clips. Set cover aside in a clean area.
2. 2

   Disconnect mass airflow sensor connector
   Locate the mass airflow (MAF) sensor on the air intake tube near the air filter housing. Press the tab on the electrical connector and pull straight out to disconnect. Do not pull on the wires.
3. 3

   Loosen air filter housing clamp
   Using a flathead screwdriver, loosen the hose clamp securing the air intake tube to the air filter housing outlet. Rotate clamp away from connection point for clearance.
4. 4

   Loosen throttle body clamp
   Locate the connection at the throttle body end of the air intake tube. Using a flathead screwdriver, loosen the hose clamp securing the air intake tube to the throttle body inlet.
5. 5

   Disconnect ventilation hoses
   Identify any small breather or ventilation hoses connected to the air intake tube. Using pliers if necessary, squeeze the spring clamps and slide them back, then carefully pull the small hoses off the intake tube connections.
6. 6

   Remove intake tube mounting bracket
   Locate the support bracket that secures the air intake tube to the engine or body. Remove the 10mm mounting bolt using a socket and ratchet. Keep the bolt and bracket together for reinstallation.
7. 7

   Remove air intake tube
   Carefully twist and pull the air intake tube to separate it from both the air filter housing and throttle body connections. Maneuver the tube upward and out of the engine bay. Inspect both rubber connection points for damage or deterioration.
8. 8

   Clean connection surfaces
   Using a clean shop towel, wipe the throttle body inlet and air filter housing outlet to remove any dirt, debris, or old rubber particles. Ensure both surfaces are completely clean and dry before installing new air intake tube.
9. 9

   Install new air intake tube
   Position the new air intake tube into the engine bay. First, slide the throttle body end onto the throttle body inlet, then align and connect the air filter housing end. Ensure both connections are fully seated with no gaps visible.
10. 10

    Install mounting bracket and secure clamps
    Reinstall the support bracket and tighten the 10mm mounting bolt securely. Tighten both hose clamps at the throttle body and air filter housing connections using a flathead screwdriver. Ensure clamps are positioned over the ribbed sections of the tube.
11. 11

    Reconnect ventilation hoses
    Push each breather or ventilation hose firmly onto its corresponding connection on the new air intake tube until fully seated. Slide the spring clamps back into position to secure each hose.
12. 12

    Reconnect mass airflow sensor
    Plug the MAF sensor electrical connector back into the sensor until you hear and feel a positive click. Gently tug on the connector to verify it is fully locked in place.

Reassembly

1. Reinstall engine cover if equipped by aligning clips and pressing down firmly
2. Reconnect negative battery terminal
3. Close hood

Verification

• Start engine and listen for any abnormal hissing or whistling sounds indicating air leaks
• With engine idling, visually inspect all connections for proper seating and no air gaps
• Check that engine idle is smooth and stable with no rough running or check engine light
• Rev engine slightly to ensure no intake tube movement or vibration
• Take vehicle for short test drive to confirm normal acceleration and throttle response

More procedures for this vehicle