Good morning,
Yes, the upper intake must be removed to access the plugs.
Roy
Removal
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1. Remove the air cleaner outlet tube.
1. Remove the vacuum hose.
2. Loosen the clamps.
3. Remove the air cleaner outlet tube.
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2. Remove the three nuts and the engine appearance cover.
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3. Disconnect the cables.
1. Disconnect the throttle cable.
2. If equipped, disconnect the cruise control cable.
3. Remove the throttle cable bracket bolts.
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4. Disconnect the throttle position (TP) sensor and idle air control (IAC) electrical connectors.
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5. Disconnect the exhaust gas recirculation (EGR) valve vacuum hose and EGR tube nut.
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6. Disconnect the EGR vacuum regulator valve electrical connector and vacuum hose.
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7. Disconnect the three vacuum hoses on the back of the intake manifold.
1. Connect the chassis vacuum hose.
2. Connect the engine vacuum hose.
3. Connect the positive crankcase ventilation (PCV) hose.
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8. Disconnect the vapor management valve (VMV) vacuum hose.
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9. Disconnect the two electrical connectors attached to the left side of the upper intake manifold.
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10. Disconnect the power steering pressure (PSP) sensor electrical connector.
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11. Remove the eight bolts and the upper intake manifold.
1. Remove and inspect the gaskets. Discard if damaged.
2. Clean all sealing surfaces.
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Tuesday, March 10th, 2020 AT 5:43 AM