OEM Jeep Liberty Intake Manifold

Jeep Liberty Intake Manifold Parts and Q&A

• Intake Manifold
  53032999AD
  Q: How to Service and Repair an Intake Manifold on Jeep Liberty?

  A:

  Before serving or repairing the intake manifold, bleed the fuel system and unplug the negative battery cable. After that, take out the resonator assembly and air inlet hose and drain the cooling system below the level where the Coolant Temperature Sensor is. First, remove the ETC connector, then unplug the coolant temperature sensor's electrical connectors and those for the MAP Sensor. At this step, you should take out the vapor purge hose, the brake booster hose and the PCV hose. Pull out the ignition coil towers and remove the bolt holding the top oil dipstick tube, after that remove the EGR tube. Then, remove both the Fuel Rail and the Throttle Body assembly. Unscrew the nuts holding the intake manifold, starting with the last ones you tightened and going backward one at a time, before you take out the intake manifold.
• Intake Manifold
  53031080AE
  Q: How to Remove and Reinstall an Intake Manifold on Jeep Liberty?

  A:

  The first thing to do is remove the cable from the inlet air temperature sensor and the negative cable from the battery. After that, take out the air intake tube from the Throttle Body and remove the upper air cleaner housing. Remove each connector from the TPS, IAC motor and MAP Sensor. Eliminate the lines attached to the purge solenoid and PCV Valve, as well as the lines for the power Brake Booster, LDP, EGR transducer and speed control vacuum reservoir where they are joined at the intake manifold. Take off the throttle, speed control (if present) and transaxle control cables from their attachment to the throttle lever and bracket. Remove the fuel line, Coolant Temperature Sensor/fuel injector wire harness connector and fuel injector harness only after releasing the fuel system. Detach the intake manifold from the cylinder head and quickly remove the manifold from your engine, ensuring you protect the openings to keep out any debris. Check the manifold to make sure it is flat, being sure it doesn't deviate more than 0.15 mm per 300 mm (0.006 inch per foot) and replace it if you find any cracks or warping. Begin installation by cleaning the manifold sealing surfaces, installing new manifold to cylinder-head seals and then putting it onto the head. Turn each intake manifold screw to 28 Nm (250 inch lbs.), using the correct order, until every bolt meets the required strength. Put the Throttle Cables back into the bracket and link the throttle, speed control (if applicable) cables to the throttle lever. Then, at the fittings on the upper intake manifold, reconnect the vacuum lines used by the EGR, brake booster, speed control, LDP, purge valve and PCV valve. Hook up the power for the MAP sensor, TPS and IAC motor and then plug in the line for the fuel and connect the coolant temperature sensor/fuel injector wiring harness. At this stage, secure the air cleaner housing and air intake tube to the throttle body, connect the inlet air temperature sensor cord and link the vehicle's negative cable back to the battery.