Table 2-1. Troubleshooting (Cont)
Test or Inspection
Step 2. Check for defective control valve. Remove modulator valve from transmission
(page 3-261 ). Check valve stop in transmission for free movement. Check
that spring pushes valve stop out when released and is not damaged.
If valve stop does not move freely or spring is damaged or
does not push valve stop out, repair control valve (page 14-74).
Step 3. Check for high rear governor pressure. Remove plug from rear governor test
port. Install 0 to 200 psi (0 to 380 kPa) gage at rear governor test port.
Start engine and shift transmission into DRIVE. Release parking brake and
drive vehicle until engine tachometer reads approximately 1650 rpm. Check
for 100 to 115 psi (690 to 794 kPa) rear governor pressure.
If pressure is over 115 psi (794 kPa), replace governor valve
(page 3-260). If pressure is below 100 psi (690 kPa), repair
control valve body (page 14-74).