GMC 2003 Sierra - Manual (Page 304)

3. Pull the puah-pins and
lower dam assembly
awsy from the retainers
uniil the lower dam
is free.
To reinstall Ihe lower air danl^ do the roHowÈng:
Whan ynu'ne back on roads, though, be sure (o replace
ihe air dam.
Notice: Operating your vehicle for extended
periods without the front bumper lower air dsm
installed can cause improper air flow Lo the engine
and may allow things like fog lamps or tow hooks
□n the front of your vehicle to be damaged. Always
be sure to replace the front bumper air dam when
you're finished off-road driving.
2
Line up each push-pin
with its infendad
retainer and push the
washer portion of
the push-pin toward
the retairier unlii it locks
into place.
Push the flat end of the
push-pin toward (he
retainer until it
iodts into place,
making sure each is
secure.
4^23