1993 CHEVROLET ASTRO PASSENGER spark plugs replace

Downloaded from www.Manualslib.com manuals search engine Service & Appearance Care
Service Replacement Parf and Filter
Recommendations Table
Engine cap
Filter
Plugs Valve
Cleaner
Filter
(VIN) Radiator
Fuel
Spark"
PCV Air Oil
4.3L (Z) PF51 A773C
*Use copper-cored resistor type spark plugs. RC36 GF481
.CR43TS CV892C
A1163C PF51
4.3L (W)
RC36 GF481
CR43TS
CV789C
Filter
TO005
6-70

Downloaded from www.Manualslib.com manuals search engine 6. TRANSMISSION SERVICE
Change the transmission fluid and filter every 15,000 miles (2\
5 000 km).
If the vehicle is mainly driven under one or more of these conditions:
In heavy city traffic.
Where the outside temperature regularly reaches 90°F (32°C\
) or
In hilly or mountainous terrain.
Frequent trailer pulling.
Uses such as taxi, police, delivery or other commercial service\
.
higher.
If the vehicle is not used mainly under any
of these conditions, change
the fluid and filter every 30,000 miles
(50 000 km). See “Automatic
Transmission Fluid’’ in the Index for more information.
7. FUEL FILTER REPLACEMENT* -Replace the fuel filter at the specified
interval or sooner
if clogged.
8. SPARK PLUGS REPLACEMENT* -Replace spark plugs with the type
listed in Section
6. See “Specification Charts’’ in the Index.
9. SPARK PLUG WIRE INSPECTION* -Clean wires and inspect for burns,
cracks or other damage. Check the wire boot
fit at the distributor and at
the spark plugs. Replace wires as needed.
10.
ENGINE TIMING CHECK AND DISTRIBUTOR CHECK -Adjust timing to
underhood label specifications. Inspect the inside and outside of the
distributor cap and rotor for cracks, carbon tracking and corro\
sion. Clean
or replace as needed.
cap and lines for damage or leaks. Remove fuel cap, inspect g\
asket for
an even filler neck imprint, and any damage. Replace parts as \
needed.
12.
ENGINE ACCESSORY DRIVE BELT INSPECTION* -Inspect belt. Look
for cracks, fraying, wear, and proper tension. Adjust or replac\
e as needed.
11.
FUEL TANK, CAP AND LINES INSPECTION* -Inspect the fuel tank,
* An Emission Control Service
7-9