1997 GMC JIMMY transmission

When You Are Ready to Leave After
Parking on
a Hill
I, Apply your reg~~lar brakes and lwld the pedal down
while you:
Start your engine;
Shift into a gear: and
Release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the chocks.
4. Stop and have someone pick up and store the chocks.
Maintenance When Trailer Towing
Your vehicle will need service nlore often when you're
pulling a trailer. See the Maintenance Schedule for more
on
this. Things that are especially important in trailer
operation
are automatic transmission fluid (don't
overfill), engine
oil. ~~xle lubricant, belt, cooling system
and
brakc adjustment. Each of these is covered in this
manurd.
and the Index will help you find then] quickly.
If you're trailering. it's a good idea to review these
sections before you start your trip.
Check periodically
to see that all hitch nuts and bolts
are tight.
4-54

NOTICE:
Ignoring these steps could result in costly damage
to your vehicle that wouldn't be covered by
your warranty.
Do not try to start your vehicle by pushing or
pulling it. This could damage your vehicle, even
if
you have a manual transmission. And if you have
an automatic transmission, it ~on't start that way. Batteries can hurt
you. They can
be dangerous
because:
They contain acid that can burr1 you.
0 They contain gas that can explode or ignite.
0 They contain enough electricity to
burn you.
If you don't
follow these steps exactly, some or all
of these things can hurt you.
I NOTICE:
5-3

2. Get the vehicles close enough so the jumper cables
can reach, but
be sure the vehicles aren*t touching
each other.
If they are, it could cause a ground
connection you don't want.
You wouldn't be able to
start your vehicle,
and the bad grounding could
damage the electrical systems.
You co~~ld
be injured if the vehicles roll. Set the
parking
brake firmly on each vehicle. Put an
automatic transmission in PARK (P) or a manual
transmission
in NEUTRAL (N). If you have a
four-wheel-drive vehicle with a manual transfer case
shift lever, be sure
the transfer case is not in
NEUTRAL (Nj.
3. Turn off the ignition on both vehicles. Unplug
unnecessary accessories plugged into the ci, wsette
lighter, or accessory power outlets,
if you have this
option. Turn off all
lamps that aren't needed as well
as radios. This will avoid sparks and help save both
batteries.
In addition, it could save your radio!
I NOTICE:
If' you leave your radio on, it could be badly
damaged, The repair wouldn't be covered by
your warranty.
An electric fan can start up even when the engine
is not running and can injure you. Keep hands,
clothing and tools
away from any underhood
electric fan.
- -
If your vehicle has air conditioning, the auxiliary
electric fan under the hood can start up
even
when the engine is not running and can injure
you. Keep hands, clothing and tools away from
any underhood electric fan.
5-4

When your vehicle is being towed. have the ignition key
turned to the OFF position. The steering wheel should
be cla111ped
in a straight-alwad position with a clamping
device designed for towing service. Do not use the
vehicle's steering column lock for this. The transmission
should be
in NEUTRAL (N) and the transfer case, if you
have one. should be in 2HI. The parking brake should
be released.
If your vehicle 11as a floor mounted shifter and no
electrical power, the electrical solenoid lock must be
overridden to shift from PARK (P) to NEUTRAL (N).
Follow these steps:
1. Push the base of the shift lever boot forward \%7ith
your tlwmb.
2. Lift the boot and find the white solenoid lever.
3.
4.
5.
Move the solenoid lever toward the driver's side to
unlock
it.
While holding the solenoid lever in the ~~nlock
position. press the shift lever button and shift into
NEUTRAL (N).
5-9

If No Steam Is Coming From Your Engine
If you zet the overheat warning but see or hear no
steam. the problem may not be too serious. Sometimes
the engine can get
a little too hot when you:
0 Climb a long hill on a hot day.
Stop after high-speed driving.
Idle for long periods in traffic.
Tow a trailer. See "Driving on Grades" in the Index.
If you get the overheat warning with no sign of steam,
try this for a minute
or so:
2. T~11-11 on yo~~r heater to full hot at the highest fan
speed and open the window as necessary.
3. If you're in a traffic jam. shift to NEUTRAL (N):
otherwise, shift to the highest gear \vhile
driving -- AUTOMATIC OVERDRIVE ((33) or
DRIVE (D) for automatic transmissions.
If you no longer have the overheat warning. you
can drive. Just
to be safe. drive slower for about
10 minutes. If the warning doesn't come back on.
you can drive norrnally.
If the warning continues. pull over, stop, and park your
vehicle right away.
If there's still no sign of steam. push the accelerator until
the engine speed is about twice as fast as normal idle
speed. Bring the engine speed back
to normal idle speed
after two or three minutes. Now see
if the warning stops.
But then, if you still have the warning, rum ogtlw
eugine
c~l got el?er;\.olw out oftlw \vl~iclc. until it
cools down.
You
may decide not to lift the hood but to get service
help right
away.
5-13

Engine Fan Noise If a Tire Goes Flat
This vehicle has a clutched engine cooling fan. When
the clutch is engaged,
the fan spins faster to provide
more air to cool the engine.
In most everyday driving
conditions, the clutch
is not engaged. This improves
fuel economy and reduces
fan noise. Under heavy
vehicle loading, trailer towing and/or high outside
temperatures, the
fan speed increases when the clutch
engages.
So you may hear an increase in fan noise. This
is normal and should not be mistaken as the
transmission slipping
or making extra shifts. It is merely
the cooling system functioning properly. The fan will
slow down when additional cooling is not required and
the clutch disengages.
You
may also hear this fan noise when you start he
engine.
It will go away as the fan clutch disengages. It's
unusual
for a tire to "blow out" while you're driving,
especially
if you maintain your tires properly. If air goes
out of
a tire, it's muc11 more likely to leak out slowly.
But if you should ever have a "blowout." here are a few
tips about what
to expect and what to do:
If a front tire fails, the flat tire will create a drag that
pulls the vehicle toward that side. Take your foot off the
accelerator pedal and grip the steering wheel firmly.
Steer to ~naintain lane position, and then gently brake to
a stop well out of the traffic lane.
A rear blowout. particularly on a curve, acts much like a
skid and may require the same correction you'd use in a
skid. In any rear blowout, remove yo~~r foot from the
accelerator pedal. Get the c.ehicle under control
by
steering the way ~OLI want the vehicle to go. It may be
very bumpy
and noisy. but you can still steer. Gently
brake to
a stop -- well off the road if possible.
5-22

Changing a Flat Tire
If a tire goes flat, avoid further tire and wheel damage
by driving slowly to a level place. Turn on your hazard
warning flashers.
A CAUTION:
Changing a tire can cause an injury. The vehicle
can slip off the jack and roll over you or other
people. You and they could be badly injured.
Find a level place to change your tire.
To help
prevent the vehicle from moving:
1. Set the parking brake firmly.
2. Put an automatic transmission shift
lever in PARK
(P) or shift a manual
transmission to FIRST
(1) or
REVERSE (R).
CAUTIQN: iContinued) .~
3. If you have a four-wheel-drive vehicle
with a manual transfer case shift lever,
be sure the transfer case is in a drive
gear
-- not in NEUTRAL (N).
4. Turn off the engine.
5. Put the wheel blocks at the front and
rear
of the tire farthest away from the
one being changed. That would be the
tire on the other side of the vehicle,
at
the opposite end.
5-23

~ ~~ ~~
~~~ ~~~ NOTICE:
When
the compact spare is installed, don’t take
your vehicle through an automatic car wash with
guide rails. The compact spare can get caught on
the rails. That can damage the tire and wheel,
and maybe other parts
of your vehicle.
Don’t use your compact spare on other vehicles.
And
don’t mix your compact spare tire or wheel with
other wheels or tires. They won’t fit. Keep your spare
tire and its wheel together.
NOTICE:
Tire chains won’t fit your compact spare. Using
them can damage your vehicle and can damage
the chains too. Don’t use tire chains on your
compact spare.
If You’re Stuck: In Sand, Mud,
Ice or Snow
What you don’t want to do when your vehicle is stuck is
to spin your wheels too fast. The method known as
“rocking” can help you get out when you’re stuck, but
you must use caution.
If you let your tires spin at high speed, they can
explode, and you or others could be injured. And,
the transmission or other parts
of the vehicle can
overheat. That could cause an engine
compartment fire or other damage. When you’re
stuck, spin the wheels
as little as possible. Don’t
spin the wheels above 35 mph
(55 kmh) as shown
on the speedometer.
5-36 j