How to Replace the Air Intake Chamber on All 1997 - 2000 Toyota Camry / Avalon 2.2L 4 Cyl Engines
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How to Replace the Air Intake Chamber on All 1997 - 2000 Toyota Camry / Avalon 2.2L 4 Cyl Engines

How to Replace the Air Intake Chamber on All 1997 - 2000 Toyota Camry / Avalon 2.2L 4 Cyl Engines.


This procedure applies to 1MZ-FE engines only.

  • Remove the battery and battery tray.
  • Drain and recycle the engine coolant.
  • Disconnect the accelerator cable on automatic transaxles. Disconnect the throttle cable.
  • Remove the air cleaner cap assembly. Disconnect and label any wiring or hoses interfering with removal.

Fig. Label and remove the emission control valve set

Fig. Brake booster vacuum line, (1), ground straps (2) and PCV valve hose (3) removal component locations

Fig. Remove the rear engine stay mounted behind the throttle body

Fig. The hydraulic fan pressure hose (2) must be removed to separate the ground strap (1) in the rear of the air intake chamber

Fig. Remove the two hex head bolts and the two regular nuts from the air intake chamber

Fig. Lift the air intake chamber off the intake manifold

Fig. Never reuse old gaskets

Fig. Once the air intake chamber is removed, other components may be extracted

To remove:

  • Remove the V-bank cover.
  • Disconnect the heater hoses in the way of the intake manifold removal.
  • Disconnect all the vacuum hose and wiring for the emission control valve set and remove.
  • Disconnect the following hoses for the air intake chamber:
  1. Brake booster vacuum hose
  2. PCV hose
  3. Air control valve vacuum hose
  • Unplug the DLC1 connector. Remove the nut and disconnect the 2 ground straps.
  • Unbolt and remove the hydraulic motor pressure hose from the air intake chamber.
  • Remove the bolt and disconnect the ground strap.
  • Disconnect the right side oxygen sensor wiring clamp from the power steering tube. Remove the two nuts and disconnect the tube.
  • Remove the 2 bolts and the No. 1 engine hanger. Remove the air intake chamber stay.
  • Remove the EGR pipe discard the old gaskets.
  • Disconnect the throttle position sensor wiring, IAC valve connector, EGR temperature sensor and A/C idle-up connector. Disconnect the 2 vacuum hoses from the throttle vacuum valve and the vacuum hose form the cylinder head rear plate. Disconnect the vacuum hose form the charcoal canister.
  • Disconnect the 2 water bypass hoses and the air assist hose.
  • Using an 8mm hexagon wrench, remove the 2 bolts, 2 nuts and the air intake chamber and gasket.
  • Clean and inspect the air intake chamber mating surfaces. Scrape all old gasket material off.

To install:

  • Install a new gasket and the air intake chamber with the 2 bolts and nuts. Tighten them to 32 ft. lbs. (43 Nm). Connect the water and vacuum hoses along with wiring for the air intake chamber.
  • Install any remaining components, remember to use all new gaskets.
  • Tighten the following components:
  1. Air intake chamber bolts and nuts to 32 ft. lbs. (43 Nm)
  2. EGR pipe nuts to 9 ft. lbs. (12 Nm)
  3. Emission control valve set to 69 inch lbs. (8 Nm)
  4. No. 1 engine hanger to 19 ft. lbs. (39 Nm)
  5. Air intake chamber stay to 14 ft. lbs. (20 Nm)
  • Install the air cleaner assembly. Connect the heater hoses. Install the battery and tray.
  • Connect the throttle cable with bracket onto the throttle body.
  • On vehicles equipped with automatic transaxle, connect the accelerator cable and adjust it.
  • Fill the cooling system to the proper level and connect the negative battery cable.
  • Start the engine and inspect for leaks.

Additional resources:

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