1998 Ranger Workshop Manual
23. Disconnect the electrical connector from the differential pressure feedback EGR system (9J433).
24. Disconnect the electrical connector from the idle air control (IAC) valve (9F715).
25. Disconnect the electrical connector from the throttle position (TP) sensor (9B989).
26. Disconnect the electrical connector from the engine coolant temperature (ECT) sensor (12A648).
27. Disconnect the electrical connector from the water temperature sending unit sensor.
28. Disconnect the vacuum hoses from the differential pressure feedback EGR system.
http://www.fordtechservice.dealerconnection.com/pubs/content/~WSWL/~MUS~LEN/21...
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11/21/2009