MAINTENANCE
2.20
SPARK PLUG
A
330 Engine
1.
Remove spark plug high tension lead. Clean plug
area so no dirt and debris can fall into engine
when plug is removed.
2.
Remove spark plug.
3.
Inspect electrodes for wear and carbon buildup.
Look for a sharp outer edge with no rounding or
erosion of the electrodes.
Inpsect electrode for
wear and buildup
4.
Clean with electrical contact cleaner or a glass
bead spark plug cleaner only. CAUTION: A wire
brush or coated abrasive should not be used.
5.
Measure gap with a wire gauge.
Refer to
specifications for proper spark plug type and gap.
Adjust gap if necessary by bending the side
electrode carefully.
.036
″
(.9 mm)
Spark Plug Gap
6.
If necessary, replace spark plug with proper type.
CAUTION: Severe engine damage may occur if
the incorrect spark plug is used.
7.
Apply a small amount of anti-seize compound to
the spark plug threads.
8.
Install spark plug and torque to 9--11 ft. lbs (12--14
Nm).
Recommended Spark Plug:
NGK BKR6E
Spark Plug Torque: 9--11 Ft. Lbs.
(12--14 Nm)
IGNITION TIMING
Refer to Electrical chapter for ignition timing
procedure.
Ignition Timing:
30
°±
2
°
BTDC@5000RPM
ENGINE-TO-FRAME GROUND
Inspect engine-to-frame ground cable connection. Be
sure it is clean and tight.
Engine Ground Strap
MAIN AIR FILTER CLEANING
It is advisable to replace the filter when it is dirty.
However, in an emergency it is permissible to clean
the main filter if you observe the following practices.
G
Never immerse the filter in water
since dirt can be transferred to the
clean air side of the filter.
G
If compressed air is used never
exceed a pressure of 40 PSI. Always
use a dispersion type nozzle to
prevent filter damage and clean from
the inside to the outside.
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Summary of Contents for 2009 Trail Blazer 330
Page 94: ...ENGINE 3 48 NOTES P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 110: ...FUEL SYSTEM CARBURETION 4 16 NOTES P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 124: ...BODY STEERING SUSPENSION 5 14 NOTES P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 196: ...ELECTRICAL 10 4 REVERSE LIMIT SYSTEM P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 226: ...ELECTRICAL 10 34 NOTES P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 227: ...ELECTRICAL WIRING DIAGRAM 2009 TRAIL BOSS P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 228: ...ELECTRICAL WIRING DIAGRAM 2009 TRAIL BOSS P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 229: ...ELECTRICAL WIRING DIAGRAM 2009 TRAIL BLAZER P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...
Page 230: ...ELECTRICAL WIRING DIAGRAM 2009 TRAIL BLAZER P a r t S h a r k c o m 8 7 7 9 9 9 5 6 8 6 ...