AIR INTAKE/EXHAUST SYSTEM
Refer to TM 5-3895-373-10 for engine starting and equipment operating procedures. Refer to paragraph
2.10 for connecting and disconnecting STE/ICE-R test set to DCA. Refer to paragraph 1.16 for
turbosupercharged intake and exhaust system operating principles.
Symptoms of intake/exhaust problems
include hard starting, lack of power,
and/or emission of a black, fuel-rich
access door, front top right access
door, and right access door per TM 5-
3895-373-10. Remove engine access
cover per paragraph 2.22.
A thorough visual inspection of air
intake system requires removal of
baffle, air cleaner filter element, air
cleaner deflector, and ducting. Make
sure that the air intake is not blocked
in any manner. Replace filter element,
if visibly clogged.
AIR CLEANER PRESSURE DROP TEST - STE/ICE-R TEST 28
Measures pressure drop across air cleaner to detect
Shut down engine per TM 5-3895-373-10.
extent of air cleaner clogging.
Set TEST SELECT switches to 28.
DCA Test Pins: AA and AB
Press and hold TEST button until CAL appears on
Release TEST button and wait for offset value to
Run confidence test per TM 9-4910-571-12&P.
on display. If offset value is within -9 and +9,
Press and release TEST button.
POSSIBLE ERROR MESSAGES
Run engine at test speed per TM 5-3895-373-10.
005 Required offset test was not performed.
Observe displayed value. Displayed values are in
pounds per square inch (psi). Expected maximum
@500 to 850 rpm
@2640 ±40 rpm
If STE/ICE-R reading does not approach expected value, check transmitter per DCA diagnostics,