13. Disconnect the heater hose.
14. Disconnect the EGR transducer and the throttle position sensor connectors.
15. Disconnect the EGR transducer vacuum lines.
16. Remove the EGR transducer bracket.
17. Position the EGR valve to exhaust manifold tube aside.
Disconnect the upper fitting.
Loosen the lower fitting.
Position the tube aside.
18. Disconnect the EGR valve vacuum line.
14
1999 F-Super Duty 250-550 Workshop Manual
1/16/2011
http://www.fordtechservice.dealerconnection.com/pubs/content/~WSXO/~MUS~LEN/20/...