Page 250 of 404

Downloaded from www.Manualslib.com manuals search engine At a minimum, the gasoline you use should meet
specifications ASTM
D4814 in the United States and
CGSB 3.5-M93 in Canada. Improved gasoline
specifications have been developed by the American
Automobile Manufacturers Association (AAMA) for
better vehicle performance and engine protection.
Gasolines meeting the AAMA specification could
provide improved driveability and emission control
system protection compared to other gasolines.
Be
sure the posted octane for premium is at least 9 1
(at least 89 for middle grade and 87 for regular). If the
octane is less than
87, you may get a heavy knocking
noise when you drive.
If it’s bad enough, it can damage
your engine.
If you’re using fuel rated at the recommended octane or
higher and you still hear heavy knocking, your engine
needs service. But don’t worry if you hear a little
pinging noise when you’re accelerating or driving up a
hill. That’s normal, and you don’t have to buy
a higher
octane fuel to get
rid of pinging. It’s the heavy, constant
knock that means you have a problem. If
your vehicle
is certified to meet California Emission
Standards (indicated
on the underhood tune-up label),
it is designed to operate
on fuels that meet California
specifications.
If such fuels are not available in states
adopting California emissions standards, your vehicle
will operate satisfactorily
on fuels meeting federal
specifications, but emission control system performance
may be affected. The malfunction indicator lamp on
your instrument panel may turn
on and/or your vehicle
may fail
a smog-check test. If this occurs, return to your
authorized Chevrolet dealer for diagnosis to determine
the cause of failure. In the event it is determined that the
cause
of the condition is the type of fuels used, repairs
may not be covered by your warranty.
Some gasolines that are not reformulated for low
emissions contain an octane-enhancing additive called
methylcyclopentadienyl manganese tricarbonyl (MMT);
ask your service station operator whether or not his fuel
contains MMT. General Motors does not recommend the
use
of such gasolines. If fuels containing MMT are used,
spark plug life may be reduced and your emission
control system performance may be affected. The
malfunction indicator lamp
on your instrument panel
may turn on. If this occurs, return to your authorized
Chevrolet dealer
for service.
6-4
Page 254 of 404

Downloaded from www.Manualslib.com manuals search engine When you put the cap back on, turn it to the right
(clockwise) until you hear a clicking sound. Make sure
you fully install the cap. The diagnostic system can
determine
if the fuel cap has been left off or improperly
installed. This would allow fuel to evaporate into the
atmosphere. See “Malfunction Indicator Lamp” in
the Index.
NOTICE:
If you need a new cap, be sure to get the right
type. Your dealer can get one for you.
If you get
the wrong type,
it may not fit or have proper
venting,
and your fuel tank and emissions system
might be damaged.
Checking Things Under the Yood
- -
An electric fan under the hood can start up and
injure you even when the engine
is not running.
Keep hands, clothing and tools
away from any
underhood electric fan.
I /A CAUTION:
Things that burn can get on hot engine parts and
start a fire. These include liquids like gasoline,
oil, coolant, brake fluid, windshield washer and
other fluids, and plastic or rubber. You or others
could be burned. Be careful not
to drop or spill
things that will burn onto
a hot engine.
Page 320 of 404

Downloaded from www.Manualslib.com manuals search engine Replacement Bulbs
Back-up ............................... 1141
Center High-Mounted Stoplamp
............. 92 1
Front Parking and Turn Signal ............. 3 157K
Headlamp (Low-Beam) ................. H-435 1
Headlamp (High-Beam)
................ H-4352
Sidemarker
.............................. 194
Tail Only
............................... 194
Tail/Stop/Turn
.......................... 2057
Capacities and Specifications
Engine
Type VIN Engine Code
K ...................... V6
VIN Engine Code P
...................... V8
Fuel Delivery
.................... Fuel Injection
Valve Arrangement
.................... In-Head
Piston Displacement VIN Engine Code
K ............ 23 1 CID (3800)
VIN Engine Code P ............ 350 CID (5.7L)
VIN Engine Code K .............. 1-6-5-4-3-2
VIN Engine Code P ........... 1-8-4-3-6-5-7-2
Wheel Nut Torque ........... 100 lb-ft (140 N-m)
Thermostat Temperature Specification
180°F (82°C)
Windshield Wiper Blade Replacement
Type
................................. hook
Length ................... 24 inches (610 mm)
Firing Order
6-74