F 150 2WD Pickup V8-5.4L Prop SOHC VIN Z (1998)
17. Disconnect the following electrical connectors:
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idle air control (IAC) valve
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differential pressure feedback (DPFE) transducer
18. Remove the EGR valve to exhaust manifold tube
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Disconnect the upper and lower EGR valve to exhaust manifold tube fittings.
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Disconnect the two DPFE hoses.
