engine GMC ENVOY 1998 User Guide
[x] Cancel search | Manufacturer: GMC, Model Year: 1998, Model line: ENVOY, Model: GMC ENVOY 1998Pages: 386, PDF Size: 20.33 MB
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NEUTRAL (N): In this position,  your  engine  doesn’t 
connect  with the wheels. 
To restart  when  you’re already 
moving,  use 
NEUTRAL (N) only. 
Shifting out  of  PARK (P) or NEUTRAL (N) while 
your  engine 
is “racing”  (running at  high speed) is 
dangerous.  Unless  your  foot is firmly  on the 
brake  pedal,  your  vehicle  could  move  very  rapidly. 
You could lose  control  and  hit people  or 
objects.  Don’t  shift out 
of PARK  (P) or 
NEUTRAL  (N)  while  your  engine is racing. 
ml 
I NOTICE: 
Damage  to  your  transmission  caused  by  shifting 
out 
of PARK (P) or  NEUTRAL  (N) with  the 
engine  racing  isn’t  covered  by  your  warranty.  DRIVE 
(D): 
This position  is  for normal  driving. If you 
need  more  power  for passing,  and you’re: 
0 Going  less  than about 35 mph (55 krdh), push your 
accelerator  pedal about  halfway  down. 
Going about 35 mph (55 krdh) or more, push the 
accelerator all the  way down. 
You’ll  shift down 
to the next gear and have  more power. 
DRIVE 
(D) should  not be used  when towing  a trailer, 
carrying  a  heavy  load,  driving on steep  hills, or  for 
off-road  driving.  Select  THIRD 
(3) when operating  the 
vehicle under any  of these  conditions. 
THIRD (3): This  position  is also used  for normal 
driving,  however  it offers more power and  lower  fuel 
economy  than DRIVE  (D). 
You should use  THIRD (3) 
when towing  a trailer,  carrying  a  heavy  load,  driving on 
steep hills or winding roads  or  for off-road  driving. 
SECOND (2): This position  gives you more power but 
lower  fuel economy  than 
THIRD (3). You can use 
SECOND 
(2) on hills.  It can  help  control  your speed as 
you 
go down  steep mountain  roads, but then you would 
also want  to use your  brakes 
off and on. 
You  can also  use SECOND 
(2) for  starting  your vehicle 
from  a  stop 
on slippery road  surfaces. 
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NOTICE: 
Driving with the  parking  brake  on can cause 
your  rear  brakes  to  overheat. 
You may have to 
replace  them,  and you could  also damage  other 
parts  of your  vehicle. 
If you are towing  a trailer  and you must  park  on a hill, 
see  “Towing 
a Trailer”  in  the  Index.  That  section  shows 
what  to  do first  to  keep  the  trailer  from  moving. 
Shifting Into PARK (P) 
L 
I 
L!h CAUTL .: 
It can  be  dangerous  to  get out of your  vehicle if 
the  shift  lever is not fully  in PARK (P) with the 
parking  brake 
firmly set.  Your  vehicle  can roll.  If 
you  have  left the engine  running,  the  vehicle can 
move  suddenly.  You or  others  could be  injured. 
To be sure  your  vehicle  won’t  move,  even  when 
you’re  on  fairly  level ground,  use the steps  that 
follow.  Always  put  the shift lever  fully in 
PARK 
(P) with  the  parking  brake  firmly  set. If 
you’re pulling a  trailer, see  “Towing  a Trailer”  in 
the  Index. 
1. Hold  the  brake  pedal  down  with your right  foot and 
set  the  parking  brake. 
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2. Move the shift lever  into PARK (P) position 
like  this: 
Hold in the button  on the  lever. 
Push the lever all the  way toward the  front of 
the vehicle. 
3. Turn the ignition  key to LOCK, 
4. Remove  the key  and take it with you. If you  can 
leave  your vehicle  with the key,  your vehicle 
is in 
PARK 
(P). 
Leaving Your Vehicle With the 
Engine  Running 
It  can  be dangerous  to leave your  vehicle with the 
engine running.  Your  vehicle  could  move 
suddenly  if the  shift lever is not fully  in 
PARK (P) 
with the  parking  brake  firmly set. And,  if  you 
leave  the vehicle  with the engine running,  it could 
overheat  and even  catch fire.  You or others  could 
be  injured.  Don’t leave your vehicle  with the 
engine  running  unless you have  to. 
If  you  have to leave your vehicle with the engine 
running,  be sure your  vehicle  is  in  PARK (P) and your 
parking  brake  is  firmly set  before 
you leave it. After 
you’ve moved the shift  lever  into PARK 
(P), hold the 
regular brake pedal  down.  Then,  see if  you can  move  the 
shift  lever  away from PARK 
(P) without pressing the 
button 
on the shift lever. If you can, it means that the 
shift  lever  wasn’t fully locked into  PARK 
(P). 
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P -ing Over nqs That Burn Engine Exhaust 
Things that can burn  could touch hot exhaust 
parts  under  your vehicle  and ignite.  Don't  park 
over papers,  leaves, dry grass  or other  things  that 
can  burn.  Engine exhaust can 
kill. It contains  the gas 
carbon  monoxide 
(CO), which  you  can't see or 
smell.  It can cause unconsciousness  and death. 
You  might have exhaust coming in  if: 
Your exhaust  system sounds  strange 
Your  vehicle  gets rusty underneath. 
0 Your  vehicle  was  damaged in a collision. 
Your vehicle  was damaged when driving 
over  high points on  the road  or over 
road debris.  or  different. 
0 Repairs weren't  done  correctly. 
0 Your  vehicle or exhaust system had been 
If you ever suspect exhaust is coming  into 
your  vehicle: 
0 Drive it  only  with  all the  windows  down to 
0 Have your  vehicle  fixed  immediately. 
modified 
improperly. 
blow 
out any CO; and 
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Running Your  Engine  While 
You’re  Parked 
It’s better  not  to  park  with  the engine  running.  But  if 
ever  you have  to, here 
are some  things to know. 
A CAUTION: 
Idling  the  engine with the  air  system  control 
off could  allow  dangerous  exhaust  into  your 
vehicle  (see  the  earlier  Caution  under 
“Engine Exhaust”). 
Also,  idling  in 
a closed-in  place can  let  deadly 
carbon  monoxide 
(CO) into  your  vehicle  even if 
the  fan switch is at  the  highest setting.  One place 
this  can  happen 
is a garage.  Exhaust -- with 
CO -- can come  in easily.  NEVER  park  in a 
garage  with the engine  running. 
Another  closed-in  place can be 
a blizzard.  (See 
L6BlizzardSS  in  the  Index.) 
It can be dangerous  to get  out  of your  vehicle if 
the  shift  lever is not fully  in PARK (P) with  the 
parking  brake  firmly set.  Your  vehicle  can roll. 
Don’t  leave  your vehicle  when  the engine  is 
running  unless you have  to. 
If you’ve  left the 
engine  running,  the  vehicle can move  suddenly. 
You  or  others  could be injured. 
To be sure  your 
vehicle  won’t  move,  even  when  you’re  on  fairly 
level  ground,  always set your  parking  brake and 
move  the  shift  lever to PARK 
(P). 
Follow the proper  steps to  be  sure  your  vehicle  won’t 
move.  See “Shifting  Into 
PARK (P)” in the Index. 
If you’re  pulling a trailer,  see “Towing a Trailer”  in 
the  Index. 
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Locking Rear Axle 
Your locking rear  axle  can  give  you additional traction 
on snow, mud, ice, sand  or gravel. 
It works like  a 
standard axle most 
of the time, but  when one of the rear 
wheels  has  no traction and  the  other  does,  this feature 
will allow  the wheel with traction to move the vehicle. 
Four-wheel Drive 
Because your vehicle has  four-wheel  drive, you can 
send your engine’s  driving power to all  four  wheels  for 
extra  traction. 
To shift out of two-wheel  drive  and into 
four-wheel  drive, push the 
4HI or 4LO button on the 
transfer  case switch.  You should use 
2HI for most 
normal  driving  conditions. 
Driving  in  the 4HI or 4LO positions for a long 
time  on dry 
or wet  pavement  could shorten  the 
life 
of your  vehicle’s  drivetrain. 
Electronic Transfer Case 
The  transfer case switches 
are above the radio  controls. 
Use 
these switches to shift  into and out  of four-wheel 
drive. 
You can  choose  among three driving settings: 
2HI: This setting is for  driving  in most street and 
highway situations.  Your front  axle  is not engaged  in 
two-wheel  drive. 
4HI: This setting  engages  your front  axle to help drive 
your vehicle. Use 
4HI when  you  need  extra  traction, 
such  as  on  snowy  or icy  roads, or  in  most 
off-road  situations. 
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This  device complies with Part 15 of the FCC Rules. 
Operation  is subject  to the  following  two conditions: 
(1) this device may not cause harmful interference, 
and 
(2) this  device  must accept  any interference 
received, including interference that  may cause 
undesired operation. 
This  device  complies with 
RSS-2 10 of Industry Canada. 
Operation 
is subject  to the following two conditions: 
(1) this device  may not cause  interference, and (2) this 
device  must accept any interference, including 
interference that  may cause  undesired operation  of 
the  device. 
Changes  and modifications  to this system  by other  than 
an  authorized service facility  could void authorization to 
use  this equipment. 
Programming  the  Transmitter 
Do not  use  the transmitter  with any garage door opener 
that  does  not have  the “stop  and reverse”  feature.  This 
includes  any garage  door opener model manufactured 
before  April 
1, 1982. 
Be sure that pe~ple arid objects Lire clear of the garclge 
door- you ~1-e Iwogmmning! 
Your vehicle’s engine should  be turned  off while 
programming the transmitter. Follow these steps to 
program  up to three channels: 
1. If  you  have not previously  programmed  a universal 
channel,  proceed to Step 
2. Otherwise,  hold down 
the two outside buttons 
on the universal transmitter 
until the  red  light  begins  to flash rapidly 
(approximately 
20 seconds).  Then release  the 
buttons.  This procedure initializes  the memory and 
erases  any previous settings  for all three channels. 
2. Hold  the end of the hand-held  transmitter against the 
bottom surface 
of the universal transmitter so that 
you  can  still  see the red light. 
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Speedometer and Odometer 
Your  speedometer  lets you see  your  speed in both miles 
per  hour  (mph)  and kilometers  per hour  (kdh). 
Your  odometer  shows  how far  your  vehicle  has been 
driven, 
in either  miles  (used  in the  United  States)  or 
kilometers  (used in Canada). 
You  may  wonder  what  happens if your  vehicle  needs a 
new  odometer  installed. 
If the new  one  can  be set to the 
mileage total of the old odometer, then  it must be. But  if 
it  can’t,  then it’s set at zero,  and  a label must  be put 
on 
the  driver’s  door  to show the old  mileage  reading  when 
the new odometer  was installed. 
Trip  Odometer 
The  trip  odometer  can tell you how  far your  vehicle  has 
been driven  since you last  set the  trip  odometer  to  zero. 
To view the trip odometer, press  the button  near the 
readout. 
To reset the  trip odometer, hold the button  until 
it resets. 
Tachometer 
The  tachometer  displays  the engine  speed in revolutions 
per  minute 
(rpm). 
Each  tachometer  has a different  limit  depending on the 
powertrain in your vehicle.  The  tachometer  has three 
areas:  normal  operating  range, red warning  range  and 
red  danger  range. 
The  normal  operating  range  shows  your engine  speed 
during  normal  driving  conditions.  For  example,  when 
the needle  points  to 
2, it means the  engine is running  at 
2,000 revolutions per minute  (rpm).  The  tachometer 
needle  will vary all the  time that the  engine 
is running. 
The  shaded  red warning  range 
tells you that your  engine 
speed  is reaching  its upper limits. Don’t drive very long 
with the  tachometer 
in the red warning  range.  Lift your 
foot  off 
the accelerator  pedal. 
The  solid  red danger  range  tells 
you that your engine 
speed  is at its upper limits.  You should  immediately 
shift to  a higher gear,  or lift your  foot 
off the 
accelerator  pedal. 
I I 
NOTICE: 
Do not operate  the  engine  with  the  tachometer  in 
the  red  range,  or  engine  damage 
will occur. 
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1 ing Lights, Gages and Indicators 
This part describes the warning lights and  gages that 
may  be on  your vehicle.  The pictures will help  you 
locate  them. 
Warning lights and gages can signal  that something  is 
wrong before 
it becomes  serious enough to  cause an 
expensive  repair or replacement.  Paying attention to 
your warning lights and  gages  could also save  you or 
others  from injury. 
Warning lights  come 
on when there may  be or  is  a 
problem  with one 
of your vehicle’s functions. As you 
will  see in the details 
on the next few pages,  some 
warning lights  come 
on briefly when you start the 
engine  just  to let you know  they’re  working.  If you are 
familiar  with this section,  you should  not  be alarmed 
when this happens. 
Gages  can indicate when there  may  be or is a problem 
with  one 
of your vehicle’s  functions. Often gages and 
warning lights work together  to let  you  know when 
there’s 
a problem  with your vehicle.  When 
one of the warning lights  comes 
on and stays on 
when  you  are  driving,  or when  one of the  gages  shows 
there  may be 
a problem,  check the section that tells  you 
what 
to do  about it. Please follow  this manual’s advice. 
Waiting  to  do repairs can be costly 
-- and even 
dangerous. So please get to know your warning lights 
and  gages.  They’re  a  big help. 
Safety Belt Reminder Light 
When  the  key is turned  to RUN or START, a chime will 
come  on for  about eight  seconds  to remind people to 
fasten their  safety belts, unless the  driver’s safety belt 
is 
already buckled. 
The safety belt light  will 
also  come  on and stay  on 
for  about 
20 seconds, then 
it will  flash  for about 
55 seconds. 
If the  driver’s  belt is already buckled, neither the  chime 
nor the light  will come  on. 
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Air Bag Readiness  Light 
There is  an air bag readiness  light on the instrument 
panel,  which  shows 
the air bag  symbol.  The  system 
checks  the air bag’s electrical  system  for  malfunctions. 
The  light tells  you 
if there is an electrical  problem.  The 
system  check includes 
the air bag sensors,  the air  bag 
module, the wiring and the  diagnostic module. For more 
information 
on the air  bag  system,  see  “Air  Bag” in 
the Index. 
This light will come  on 
when  you  start your engine, 
and 
it will flash  for  a  few 
seconds.  Then  the light 
should  go  out.  This  means 
the system  is ready. 
If the air  bag  readiness  light  stays on after  you start the 
engine  or comes  on when you are  driving,  your air  bag 
system  may 
not work properly. Have your  vehicle 
serviced right away. 
The  air  bag readiness  light should  flash  for  a few 
seconds  when 
you turn the ignition key to RUN. If the 
light  doesn’t  come 
on then, have it fixed so it will be 
ready  to warn 
you if there is a problem. 
Charging System Indicator Light 
The  charging system light 
will  come  on briefly when 
you  turn on the ignition,  but 
’ the engine is  not running, 
as a check to show you it 
is  working. 
It should  go out  once  the engine 
is running. If it stays 
on, or comes  on while  you are driving,  you  may  have a 
problem  with the charging  system. 
It could  indicate  that 
you  have problems  with 
a generator  drive  belt, or 
another  electrical  problem.  Have 
it checked  right away. 
Driving while this light 
is on could  drain  your battery. 
If you must  drive  a  short distance  with the light  on, be 
certain  to turn  off  all your accessories,  such as the  radio 
and  air conditioner. 
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