F 150 2WD Pickup V8-4.6L CNG SOHC VIN 9 (1997)
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Disconnect EGR valve vacuum line. Refer to Figure 12.
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Disconnect EVR solenoid vacuum line. See Figure 12
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Disconnect vacuum tap on right side of throttle body adapter. Refer to Figure 13.
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Position vacuum harness away from engine.
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Disconnect VMV purge line at top of throttle body adapter. See Figure 13.
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Disconnect brake booster vacuum line from throttle body adapter.
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Remove brake booster vacuum line bracket from intake manifold. Position vacuum line assembly away from intake manifold.
