Downloaded from www.Manualslib.com manuals search 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.
IT 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 Catera 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
methylcyclopentadlenyl manganese tricarbonyl (MMT);
ask your service station operator whether or not this 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
Catera dealer for service.
To provide cleaner air, all gasolines in the United States
are now required to contain additives that will help
prevent deposits from forming in your engine and
fuel system, allowing your emission control system to
function properly. Therefore, you should not have to
add anything to the fuel. In addition, gasolines
containing oxygenates, such as ethers and ethanol, and
reformulated gasolines may be available in your area to
help clean the air. General Motors recommends that
you
use these gasolines if they comply with the
specifications described earlier.
NOTICE:
Your vehicle was not designed for fuel that
contains methanol. Don’t use it. It can corrode
metal parts in your fuel system and also damage
plastic and rubber parts. That damage wouldn’t
be covered under your warranty.
.
Downloaded from www.Manualslib.com manuals search engine If you’ll be driving at speeds higher than 100 mph
(160 km/h) where it is legal, raise the cold inflation
pressure of each tire to
37 psi (250 ma). When you end
this very high-speed driving, reduce the cold inflation
pressures to those listed on the Tire-Loading
Information label.
I NOTICE:
Don’t let anyone tell you that underinflation or
overinflation
is all right. It’s not. If your tires
don’t have enough air (underinflation), you can
get the following:
1 Too muchflexing
’ 0 Toomuch heat
~ 0 Tire overloading
Bad wear
0 Bad handling
1 0 Bad fuel economy.
NOTICE: (Continued)
I
NOTICE: (Continued) -
If your tires have too much air (overinflation),
you can get the following:
0 Unusual wear
0 Bad handling
0 Rough ride
Needless damage from road hazar
~- . - .. ..~ ~
v
When to Check
Check your tires once a month or more.
How to Check
Use a good quality pocket-type gage to check tire
pressure.
You can’t tell if your tires are properly
inflated simply
by looking at them. Radial tires may
look properly inflated even when they’re underinflated.
Be sure to put the valve caps back on the valve
stems. They help prevent leaks by keeping
out dirt
and moisture.
6-39
Downloaded from www.Manualslib.com manuals search engine Fuse
5
6
7
8
9
10
12 15 16
17
18
19
20
27 28
29
39
Usage
A/C Compressor
A/C Blower-Radiator
A/C Blower-Radiator
A/C Blower-Radiator
Secondary Air Induct
Injection Valves
Blower-Radiator A/C Blower-Radiator
Plug Connection
A/C Blower-Radiator
A/C Blower-Radiator
Relay
Fuel Pump
Oxygen Exhaust Sensor
Control Unit
Blower
Box
Diagnostic Plug Connection
Replacement Bulbs
Front Turn Signal Lamp ............... 90487485
Inner High Beam
................... 905 12338
Outer Low Beam
................... 905 12338
Application Bulb Number
Headlamps Composite
Rear Turn Signal Lamp and Taillamp
.... 90002521
Capacities and Specifications
Displacement ......... 18 1 cubic inches (2 962 cc)
Type
......................... 3.0 L DOHC V6
VIN Engine Code ........................... R
Horsepower .............. 200 (bhp) @ 6000 rpm
Torque
.................. 192 (lb-ft) 0 3600 rpm
Firing Order ....................... 1-2-3-4-5-6
Thermostat
Starts To Open . .... 198"F(9Z°C)
Engine Specifications
149 (kW) @ 6000 rpm
260
(N-m) @ 3600 rpm
6-62
