1993 GMC SIERRA air filter

Service & Appearance Care
This light also should come on when you start your engine, as\
a check. If it
doesn’t, have it fixed
so it will be there to let you know if you ever do get
water in your fuel.
If the light comes on at any other time, use this chart.
“WATER IN FUE
PROBLEM
Light comes on intermittently.
1) Temperatures above freezing.
Light stays on
2) Temperatures below freezing.
3) Immediately after refueling -
Large amounts of water
probably pumped into the
tank.
.” LIGHT CHART
RECOMMENDED ACTION
Drain water from fuel filter.
Drain fuel filter immediately.
If nc
water is drained and light stays on
-
replace fuel filter.
Drain fuel filter immediately.
If no
water can be drained
- water may be
frozen. Open air bleed
to check for
fuel pressure.
If no fuel pressure
replace filter.
Fuel tank purging required. See your
dealer for assistance.
1
iesitation or “flat” performance at high speed or hard acceleration may be an
ndication of premature fuel filter plugging due to dirty
or contaminated fuel.
The filter element may need
to be changed if this happens. See your dealer
or assistance.
f you drive when this warning light is on, you can damage your fuel I
njection system and your engine. If the light comes on right after you
efuel,
it means water was pumped into your fuel tank. Turn off your
mgine immediately. Then, have the water drained at once.
I
To drain water:
1. Remove the fuel tank cap.
2. Connect a hose going from the water drain valve to a fuel-resistant
container.
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Service & Appearance Care
Running Out of Fuel (Diesel Engines)
If the engine stalls and you think that you’ve run out of fuel, do this:
6.5L Engine
c
F-
P
6.2L Engine
PO228
First, open the fuel filter air bleed valve or remove the scr\
ew. If there is air,
then
you are probably out of fuel.
To restart your engine:
1. If you’re parked on a level surface, add at least two gallons \
of fuel.
However,
if you’re parked on a slope, you may need to add up to five
gallons of fuel.
PO227
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2. Unplug the Shut-Off solenoid wire from the fuel pump to prevent the
engine from starting.
3. With the air bleed valve open, turn your ignition key to Start for 10 to
15 seconds to crank (but not start) your engine. Keep doing this until
you can just see some clear fuel at the air bleed valve.
I A Diesel fuel is flammable. It could start a fire if it gets on hot engine
b parts. You could be burned. Don’t let too much fuel flow from the air
bleed valve or screw, and wipe up any spilled fuel with a cloth.
4. Close the air bleed valve, or replace the screw and reconnect \
the
Shut-Off solenoid wire.
5. Turn the ignition key to Start for 10 to 15 seconds at a time until your
engine starts.
Fuel Filter Replacement (6.5L Diesel Engines)
If you want to change the fuel filter yourself, here’s how \
to do it:
1 CAUTION
A Diesel fuel is flammable. It could start a fire if something ignites it,
-L and you could be burned. Don’t let it get on hot .engine parts, and
I keep matches or other ignition sources away.
1. Turn off your engine and set your parking brake.
2. Take off the fuel tank cap. This releases pressure in the tank.
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Service & Appearance Cave
PO503
3. The filter is behind the air cleaner on the intake manifold. \
Unscrew and take
off the ring nut from the the top of the filter head. Lift the element
out of the filter head.
4. If there is any dirt on the element sealing surface of the filter head,
clean it
off.
...
t
PO212
5. Line up the widest key slot in the top of the new element with the
widest key on the filter head
and push the element in until the mating
surfaces touch.
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6. Open the air bleed valve.
7. Turn your ignition key to Run for 10 to 15 seconds. Wait one minute for
the starter to cool. Do this until you can see clear fuel coming from the
air bleed valve.
8. Close the air bleed valve and replace the fuel tank cap.
9. Start your engine and let it idle for five minutes. Be sure to check your
fuel filter for leaks.
Fuel Filter Replacement (62 Diesel Engines)
If you want to change the fuel filter yourself, here's how to do it:
'1
K2667
Drain fuel from the filter by opening the air bleed valve and\
the water drain
valve. This prevents the fuel from spilling as you replace the\
filter. Drain the
fuel into a fuel-resistant container and dispose of it properly.
CAUTION I
A
Diesel fuel is flammable. It could start a fire if something ignites it,
and you could be burned. Don't let it get on
hot engine parts, and
keep matches
or other ignition sources away.
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Service & Appearance Care
To remove the filter:
1. Turn off your engine and set your parking brake.
2. Take off the fuel tank cap. This releases pressure in the tank.
1.. ,
K2669
3. The filter is behind the air cleaner on the intake manifold. Using a
4. If there is any dirt on the fuel port seal of the filter adapter, clean \
it off.
5. Snap the new filter into position with the bail wires.
screwdriver, separate both bail wires. Take out the filter.
K2671
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6. Close the water drain valve and connect a hose going from the air bleed\

valve port
to a fuel-resistant container. The inside diameter of the hose
should be one-eighth of an inch.
for the starter to cool.
Do this until you can see clear fuel coming from
the air bleed valve.
7. Turn your ignition key to Start for 10 to 15 seconds. Wait one minute
8. Close the air bleed valve and replace the fuel tank cap.
9. Start your engine and let it idle for five minutes. Be sure to check your
fuel filter for leaks.
Fuels in Foreign Countries (Gasoline Engines)
If you plan on driving in another country outside the US. or Canada,
unleaded fuel may be hard to find.
Do not use leaded gasoline. If you use
even one tank full, your emission controls won’t work well \
or at all. With
continuous use, spark plugs can get fouled, the exhaust system \
can corrode,
and your engine oil can deteriorate quickly. Your vehicle’s three-way catalytic
converter and oxygen sensor will be damaged.
All of that means costly
repairs that wouldn’t be covered by your warranty.
To check on fuel availability, ask an auto club, or contact a major oil
company that does business in the country where you’ll be driving.
You can also write us at the following address for advice. Just tell us where
you’re going and give your Vehicle Identification Number (VIN).
General Motors of Canada Ltd.
International Export Sales
Post Office Box
828
Oshawa, Ontario L1H 7N1, Canada
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What to Do with Used Oil:
I
I PAUTION
Used engine oil contains things that have caused skin cancer i\
n I
laboratory animals. Don’t let used oil stay on your skin fo\
r very long.
clnan your skin and nails with soap and water, or a good hand
c,,aner. Wash or properly throw away clothing or rags containing
used engine oil.
I
Used oil can be a real threat to the environment. If you change your own oil,
be sure to drain all free-flowing oil from the filter before disp\
osal. Don’t ever
dispose of
oil by putting it in the trash, pouring it on the ground, into sewers,
or into streams
or bodies of water. Instead, recycle it by taking it to a place
that collects used oil.
If you have a problem properly disposing of your used
oil, ask your dealer, a service station or a local recycling \
center for help.
Air Cleaner
I I
PO216
Refer to the Maintenance Schedule to determine when to replace \
the air
cleaner filter on diesel engines and the air cleaner filter an\
d crankcase ventilation filter on gasoline engines. See “Scheduled Mainten\
ance Services’’
in the Index.
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