T M
9 - 2 3 2 0 - 2 7 9 - 3 4 - 1
Troubleshooting Malfunctions (Cont)
2 - 7 . T R O U B L E S H O O T I N G I N S T R U C T I O N S ( C O N T ).
T a b l e 2 - 3 . T r o u b l e s h o o t i n g ( C o n t )
Malfunction
Test or Inspection
Corrective Action
T R A N S M I S S I O N ( C O N T )
6 . A U T O M A T I C S H I F T S O C U R A T T O O H I G H A S P E E D.
Step 1. Check rear governor pressure. Remove plug from rear governor test port. Install a 0 to
200 psi (0 to 1 380 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 83 to 91 psi (573 to 628 kPa) rear governor pressure.
If pressure is 83 to 91 psi (573 to 628 kPa), repair valve body (para 7-23).
Step 2. Check for clogged governor oil filter screen. Remove oil pan (para 7-11). Remove plug and
oil filter screen (para 7-20).
If oil filter screen is clogged or damaged, clean or replace oil filter screen as
required (para 7-20).
If oil filter screen is not clogged or damaged, go to Malfunction 3, Steps 1
through 3.
2 - 1 8
