A/T - E40D Shifts 1-2-3 Below 15 MPH
Date: 1996Technical Bulletin # 355
Transmission:
E4OD
Subject:
Shifts 1-2-3 below 15mph
Application:
89-95 Ford 4WD pickup
E4OD
Shifts 1-2-3 Below 15 MPH
Pickups equipped with four-wheel-drive and a manually shifted transfer case may upshift to third gear before 15 mph while in two-wheel-drive. This may be caused by a false four-low signal at the controller. With the transfer case in two-wheel-drive and the engine running, check the voltage at controller pin 14 on 1994-95 7.3L
Turbo diesel or pin 12 on all other models. If the voltage is zero, check for a faulty transfer case switch (figure 1), or a damaged connector. Also check the operation of the dash bulb, and harness under the dash for being cut on dash panel brace.
NOTE:
Aluminum spacer washer must be in stalled between switch and case.