GMC chervolet camaro 1999 Service Manual page 193

1·102 HVAC System - Manual
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Heater Pipes Replacement (3.8L)
Removal Procedure
1. Partially drain the engine coolant.
HVAC
Notice:
Remove the heater hose quick connect fittings
by hand. Do not attempt to pry the quick connect fittings
from the drive belt tensioner. Prying the quick connect
fittings may damage the quick connect fittings.
2. Disconnect the heater hose quick connect fittings
from the drive belt tensioner.
Twist and pull the quick connect fittings from the
drive belt tensioner.
3. Discard the 0-rings.
4. Remove the bolt attaching the inlet and outlet
hose bracket at the mid rail.
Notice:
Do not apply excessive force on the heater
core pipes during hose removal. Applying excessive
force on the heater core pipes may damage the heater
core pipes.
5. Remove the inlet and outlet hoses from the
heater core.
5.1 . Squeeze the hose clamp with the pliers.
5.2. Slide the clamp away from the heater core
fittings.
5.3. Gently twist and pull the heater hose from
the heater core fitting.
6. Remove the inlet hose from the module retainer.
7. Remove the inlet and outlet hoses (4) from
the vehicle.
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