Wrangler 4WD L4-150 2.5L VIN P MFI (1998)
Intake Manifold: Service and Repair
Removal
1. Disconnect the battery negative cable.
2. Remove the air inlet hose from the throttle body and air cleaner.
3. Loosen the accessory drive belt tension and remove the belt from the power steering pump.
4. Remove the power steering pump and brackets from the water pump and intake manifold. Support power steering pump and bracket with mechanics
wire attached to the radiator upper crossmember.
5. Remove the fuel tank filler cap to relieve the fuel tank pressure.
6. Install the fuel tank filler cap.
7. Disconnect fuel supply and return tube from the fuel rail. Refer to Powertrain Management.
8. Disconnect the accelerator cable from the throttle body and the holddown bracket.
CAUTION: When disconnecting the cruise control connector at the throttle body, DO NOT pry the connector off with pliers or screwdriver. Use
finger pressure only. Prying the connector off could break it.
9. Disconnect the electrical connectors. Pull the harnesses away from the manifold.
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The throttle position sensor.
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The idle speed control motor.
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The coolant temperature sensor at the thermostat.
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The manifold air temperature sensor at the intake manifold.
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The fuel injectors.
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The oxygen sensor.
10. Disconnect the Crankcase Ventilation (CCV) vacuum hose and Manifold Absolute Pressure (MAP) sensor vacuum hose connector at the intake
manifold.
11. Disconnect vacuum hose from vacuum port on the intake manifold.
Air Inlet/CCV System
12. Disconnect CCV hose at the cylinder head cover.
13. Remove the molded vacuum harness.
14. Disconnect the vacuum brake booster hose at the intake manifold.
