1993 CHEVROLET S10 engine overheat

Downloaded from www.Manualslib.com manuals search engine How to Add Coolant to the Coolant Recovery Tank
If you haven’t found a problem yet, but the coolant level isn’t at or above the
ADD mark, add a 50/50 mixture of clean water (preferably distilled) and the
proper antifreeze at the coolant recovery tank. (See “Engine\
Coolant” in the Index for more information about the proper coolant mix.)
I CAUTION
4
Adding only plain water to your cooling system can be dangerous.
Rain water,
or some other liquid, like alcohill, can boil before the
proper coolant mix
will. Your vehicle’s coolant warning system is set
for the proper coolant mix. With plain water, or the wrong mix, your
engine could get
too hot but you wouldn’t get the overheat warning.
Your engine could catch fire and you or others could be burned. Use
‘a 5Q/M mix of clean wafer and a proper antifreeze.
NOTICE
In cold weather, water can freeze and crack the en1
core and other
parts. Use the recommended coolan
*
I CAUTION
I I
You can be burned if you spill coolant on hot engine parts. Coolant
b contains ethylene glycol and it wil’l burn if the engine parts are hot
I’ enough. Don’t spill coolant on a hot engine.
When the coolant in the coolant recovery tank is at or above \
the
ADD mark,
start your vehicle.
If the overheat warning continues, there’s one more thing you c\
an try. You
can add the proper coolant mix directly to the radiator, but \
be sure the
cooling system
is cool before you do it.
A
Steam and scalding liquids from a hot cooling system can blow out
and burn you badly. They are under pressure, and if you turn the
radiator pressure cap-even a little-they can come out at high
speed. Never turn the pressure cap when the cooling system, including the radiator pressure cap, is hot. Wait for the cooling
system and radiator pressure cap
to cool if you ever have to turn
the pressure cap.
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Downloaded from www.Manualslib.com manuals search engine Pm6/ems on the Road
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. The method known as “rocking” can help you get o\
ut when you’re
stuck, but you must use caution.
~
fi If you let your tires spin at high speed, they can explode and you1 or
others could be injured. And, the transmiss’ion or other parts of the
vehicle
can overheat. That could cause an engine comparlme’nt fire
or other damage. When you’re
stuck, spin the wheels as little as
possible.
Don’t spin the wheels above 35 rnph 1(55 krn/h) as shown
oln the speedometer.
Rocking Your Vehicle To Get It Out:
First, turn your steering wheel left and right. That will clear the area \
around
your front wheels. Then shift back and forth between
R (Reverse) and a
forward gear (or with a manual transmission, between
1 (First) or 2 (Second)
gear and
R (Reverse), spinning the wheels as little as possible. Release \
the
accelerator pedal while you shift, and press lightly on the accelerator pedal
when the transmission is in gear.
If that doesn’t get you out after a few tries,
you may need to be towed
out. Or, you can use your recovery hooks, if your
vehicle has them.
If you do need to be towed out, see “Towing Your Vehicle’’
in the Index.
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Downloaded from www.Manualslib.com manuals search engine How to Check Lubricant:
i I
KO998
If the level is below the bottom of the filler plug hole, you’ll need to add
some lubricant.
If the differential is at operating temperature (warm), add enough lubricant to
raise the level
to the bottom of the filler plug hole.
If the differential is cold, add enough lubricant to raise the level to 1/2 inch
(12 mm) below the filler plug hole.
What to Use:
Refer to the Maintenance Schedule to determine what kind of lubricant to
use. See “Recommended Fluids and Lubricants” in the Index.\

Engine Coolant
The following explains your cooling system and how to add coolant when it is
low.
If you have a problem with engine overheating, see “Engine
Overheating’’ in the Index.
The proper coolant
for your vehicle will:
Give freezing protection down to -20°F (-29°C) or -34°F (-37°C) for
Give boiling protection up to 258°F (125°C).
Canadian vehicles and vehicles with the cold climate option.
Protect against rust and corrosion.
Help keep
the proper engine temperature.
Let the warning lights and gages work as they should.
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Downloaded from www.Manualslib.com manuals search engine t
..-
.I
Service & Appearance Care
What to Use:
Use a mixture of clean water (preferably distilled) and antifreeze that meets
“GM Specification 6038-M,” which won’t damage aluminum parts. Also use
GM Engine Coolant Supplement (sealer) with
a complete coolant change. If
you use these, you don’t need to add anything else.
I
Adding only plain water to your cooling system can be dangerous.
proper coolant mix will. Your vehicle’s coolant warning system is set
for the proper coolant mix. With plain water or the wrong mix, your
engine could get
too hot but you wouldn’t get the overheat warning.
Your engine could catch fire and you or others could be burned. Use
- Plain water, or some other liquid like alcohol, can boil before the
II a 50/50 mix of clean water and a proper antifreeze.
NOTICE
J use an improper coolant mix, your engine could overheat and be
badly damaged. The repair cost wouldn’t be covered by your warrant\
y
much water
in the mix can freeze and crack the engine, radiator, hea
core and other
part
Some conditions, such as air trapped in the cooling system, can affect the
coolant level in the radiator. Check the coolant level when th\
e engine is cold
and follow the steps under “Adding Coolant” for the prope\
r way to add
coolant.
If you have to add coolant more than four times a year, have your dealer
check your cooling system.
’‘ you use the proper coolant, you don’t have to add extra inhibitors c-
auditives which claim to improve the system. These can be harmful. ~ ~~~~~
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Downloaded from www.Manualslib.com manuals search engine If you want more information on curb weights, cargo weights, cargo weight
rating and the correct center of gravity zone for your vehicle, your dealer can
help you. Just ask for a copy of “Consumer Information, Truck Camper
Loading.”
Pickup Conversion fo Chassis Cab
General Motors is aware that some vehicle owners may consider having the
pickup box removed and a commercial or recreational body installed. Be\
fore
you do
so, first contact the GM Zone Office for your area for information on
such conversions. (See the “Warranty and Owner Assistance”\
booklet for
Zone Office.) Owners should be aware that, as manufactured, th\
ere are
differences between a chassis cab and a pickup with the box r\
emoved which
may affect vehicle safety. The components necessary to adapt the pickup to
permit its safe use with a specialized body should be installe\
d by a body
builder in accordance with the information available from the Zone Office.
Tires
We don’t make tires. Your new vehicle comes with high quality tires made by
a leading tire manufacturer. These tires are warranted by the tire
manufacturers and their warranties are delivered with every new vehicle. If
your spare tire is a different brand than your road tires, you will have a tire
warranty folder from each of these manufacturers.
4 Poorly maintained and improperly used tires are dangerous.
Overloading your tires can cause overheating as a result of too
much friction. You could have an air-out and a serious accide
See “Loading Your Vehicle” in the Index.
Underinflated tires pose the same danger as overloaded tires.
The resulting accident could cause serious injury. Check all tires
frequently to maintain the recommended pressure. Tire pressure should be checked when your tires are cold.
I
Overinflated tires are more likely to be cut, punctured, or broken
by sudden impact such as when you hit a pothole. Keep tires ar
I the recommended pressure.
Worn, old tires can cause accidents. If your tread is badly worn, I
Don’t drive over 85 mph (135 km/h) even if it’s legal, unless you
or
if your tires have been damaged, replace them.
have the correct high speed rated tires.
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Downloaded from www.Manualslib.com manuals search engine I
Service & Appearance Cave
Headlights
The headlight wiring is protected by a circuit breaker in the \
light switch. An electrical overload will cause the lights to go on and
off, or in some cases to
remain
off. If this happens, have your headlight wiring checked right away.
Windshield Wipers
The windshield wiper motor is protected by a circuit breaker a\
nd a fuse. If
the motor overheats due to heavy snow, etc., the wiper will s\
top until the
motor cools. If the overload is caused by some electrical problem and not
snow, etc., be sure to get it fixed.
Power Windows and Other Power Options
Circuit breakers in the fuse panel protect the power windows a\
nd other power
accessories. When the current load is
too heavy, the circuit breaker opens
and closes, protecting the circuit until the problem is fixed \
or goes away.
Trailer Wiring Harness
The optional seven-wire trailer wiring I ;s is protected by an in-line fuse
in the battery feed wire. This fuse is near rhe junction bloc\
k. See “Trailer
Wiring Harness” in the “Features
& Controls’’ section.
Fuse Block
KO631
The fuse block is in the instrument panel on the driver’s side.
- .: .-: 1
.- .
Remove the cover with a screwdriver and then you can remove f\
uses with a
fuse extractor.
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