Shift Pattern Check

Drive Range-Third Speed
Place selector lever in Drive range and accelerate vehicle from 0 mph. A 1-2 and 2-3 shift should occur at all throttle openings, shift points varying with the throttle opening. As vehicle speed decreases to 0 mph, a 3-2 and 2-1 shift should occur.

Intermediate Range
Place selector lever in L2 range and accelerate vehicle from 0 mph. A 1-2 shift should occur at all throttle openings, the shift point varying with the throttle opening. No 2-3 shift should be obtained in this range. As vehicle speed decreases to 0 mph, a 2-1 shift should occur.

Low Range-First Speed
Place selector lever in Low range. No upshift should occur in this range regardless of throttle opening.

Second Gear Overrun Braking
Place selector lever in Drive range and, with vehicle speed approximately 30 mph and foot off accelerator, move selector lever to L2 range. Transmission should immediately downshift to second gear. An increase in engine RPM and an engine braking effect should be noted. Line pressure should change from 55 psi to approximately 80 psi in second gear.

First Gear Overrun Braking
With selector lever in L2 range, and with vehicle speed at approximately 30 mph at constant throttle, move selector lever to Low range. Transmission should downshift to first gear. An increase in engine RPM and an engine braking effect should be noted. Line pressure should remain constant at approximately 80 psi.