TM 9-2320-289-34
Table 2-1. Mechanical Troubleshooting (con’t)
MALFUNCTION
TEST OR inspection
Corrective ACTION
Step 7.
Connect STE/lCE tester to STE/lCE DCA connector under dash. (See
TM 9-4910-571-12&P) Raise engine speed to 1500 rpm. Subtract current flow rate
from flow rate in step 3.
if flow rate has dropped 1 gal. (3.785 1) per minute or more, remove and
clean power steering pump control valve. (See paragraph 8-5) Remove any
burrs with crocus cloth (Item 18, Appendix B). If hydraulic fluid is dirty, repair
power steering pump. (See paragraph 8-5)
If flow rate has dropped less than 1 gal. (3.785 1) per minute, perform
step 8.
Step 8.
Record current flow rate. Have assistant turn steering wheel all the way to left and
all the way to right. Record flow rate at each stop.
If flow rate drops to less than 1 gal. (3.785 1) per minute at each stop,
perform step 9.
If flow rate does not drop to less than 1 gal. (3.785 1) per minute at each
stop, repair power steering gear. (See paragraph 8-4)
Step 9.
Run engine at idle speed. Have assistant turn steering wheel slightly to left and to
right, Observe change in pressure readings. Pressure should drop immediately as
steering wheel is turned, and raise immediately as steering wheel is straightened.
If pressure drops slowly; remove, disassemble, and clean power steering
gear valve assembly. (See paragraph 8-4) If hydraulic fluid is dirty, repair
power steering pump, (See paragraph 8-5)
46. NOISY STEERING
Step 1.
Disassemble, clean, and inspect power steering pump. (See paragraph 8-5)
Step 2.
Adjust pitman shaft preload of power steering gear. (See paragraph 8-4)
Step 3.
Remove power steering gear valve assembly. (See paragraph 8-4) Inspect seals
for damage.
Replace seals if damaged.
TRANSFER CASE
47. DIFFICULT TO SHIFT
Step 1.
Disassemble transfer case. (See paragraph 5-21 or 5-22) Check for binding, worn,
or damaged components inside transfer case.
Free any binding components if possible. Replace any worn or damaged
components.
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