TM 9-2320-387-24-l
12-29. AIR INTAKE/EXHAUST
TESTS
These air intake/exhaust system tests can be run any time you think there may be a problem
with the air intake or exhaust systems, or if you were sent here from another test.
At the bottom of this page is a simplified block diagram of the intake air/exhaust system.
A detailed functional flow is not applicable to this system.
The air intake/exhaust system is a very simple system that can cause very annoying
problems. Whether the vehicle is hard to start or runs rough or never develops full power,
it’s worth the few minutes that it takes to check the components of this system. You can run
through the diagnostic logic for this system almost any time you open the hood or check the
underside of your vehicle.
AIR FILTER /
INDUCTION
TUBE
1
ENGINE
INTERNAL
(CYLINDERS,
COMBUSTION)
EXHAUST PIPES,
CATALYTIC
CONVERTER,
AND
MUFFLER
2-141
