1993 CADILLAC ELDORADO engine overheat

Downloaded from www.Manualslib.com manuals search engine a
When the coolant in the coolant recovery tank is at or above “FULL
COLD,” start your vehicle.
If the overheat warning continues, there’s one more thing you can try.
You
can add the proper coolant mix directly to the radiator, but be sure
the cooling system
is cool before you do it.
235

Downloaded from www.Manualslib.com manuals search engine If there seems to be no leak, check to see if the electric engine fans are
running.
If the engine is overheating, both fans should be running. If they
aren’t, your vehicle needs service.
How to Add Coolant to the Coolant Surge Tank
If you haven’t found a problem yet, but the coolant level isn’t at or above
“FULL
COLD,” add a 50/50 mixture of clean water (preferably distilled)
and a proper antifreeze at the coolant recovery tank. (See “Engine
Coolant” in the Index for more information about the proper coolant
mix.)
I
A CAUTION:
Adding only plain water to your cooling system can be
dangerous. Plain water, or some other liquid like alcohol, 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 50/50 mix of clean
water -nd
a proper antifreeze.
242

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A CAUTION:
You can be burned if you spill coolant on hot engine parts.
Coolant contains ethylene glycol and
it will burn if the engine
parts are hot enough. Don’t spill coolant on
a hot engine.
Should a low coolant condition
exist, an overheat protection “Limp
Home” feature of the
4.6L Northstar allows alternate firing groups of
four cylinders for a predetermined number of cycles to prevent engine
damage, enabling your vehicle
to be driven to the nearest service center.
I
A CAUTION
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 coolant surge tank pressure cap
-- even a little -- they
can come out at high speed. Never turn the cap when the cooling
system, including the coolant surge tank pressure
cap, is hot.
Wait
for the cooling system and coolant surge tank pressure cap
to
cool if you ever have to turn the pre;.=we cap.
243

Downloaded from www.Manualslib.com manuals search engine If you let your tires spin at high speed, they can explode and you
or others could be injured. And, the transaxle 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 km/h) as shown on the speedometer.
-3pannmg your
H ; can destroy parts of your v( cle as well
I as the tires. If you spin the wheels too fast while shifting your
transaxle back and forth, you can destroy your transarj
.
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, spinning the wheels as little as possible.
Release the accelerator pedal while you shift, and press lightly on the
accelerator pedal when the transaxle is in gear.
If that doesn’t get you out
after
a few tries, you may need to be towed out. If you do need to be
towed out, see “Towing
Your Vehicle” in the Index.
257

Downloaded from www.Manualslib.com manuals search engine made especially for your automatic transaxle. Damage caused by fluid
other than DEXRON@-IIE is not covered by your
new vehicle warranty.
After adding fluid, recheck the fluid level as described under “How to
Check.”
When the correct fluid level is obtained, push the dipstick back in all
How To Reset Transaxle Fluid Change Indicator: (4.6 Liter Northstar)
Your vehicle is equipped with
a transaxle fluid change indicator. A
“CHANGE
TRANS FLUID’’ message will display on the Information
Center when the power train computer determines that the transaxle
fluid needs to be changed or at each 100,000 miles (160,000
km) interval,
whichever occurs first. When this message appears, change the transaxle
fluid and reset
the transaxle fluid life indicator as follows:
the
way.
0 Turn the key “ON” with the engine stopped.
Press and hold the “OFF” and “REAR DEFOG” buttons on the
climate control simultaneously until the
“TRANS FLUID RESET”
message appears
in the Information Center (between 5 and 20
seconds).
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 Cadillac will:
Give freezing protection down to -34” F (-37” C) .
0 Give boiling protection up to 262OF (128O C) .
0 Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning lights work as they should.
What to Use:
Use a mixture of one-half clean water (preferably distilled) and one-half
antifreeze that meets “GM Specification 1825-M,” which won’t damage
aluminum parts. You can also use a recycled coolant conforming to
GM
280

Downloaded from www.Manualslib.com manuals search engine Specification 1825-M with a complete coolant flush and refill. Use GM
Engine Coolant Supplement (sealer) with any complete coolant change.
If you use these, you don’t need to add anything else.
Adding only plain water to your cooling system can be
dangerous. Plain water, or some other liquid like alcohol, can
boil before the proper coolant mix will. Your vehicle’s cwlant
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 50/50 mix of dean
water and a proper anti€reeze,
I
281

Downloaded from www.Manualslib.com manuals search engine from me surge ram; use a flashlight as necessary to see into the tank. The
coolant level should be at or above the seam inside the tank.
If you need more coolant, add the proper mix.
RADIXTOR OR SURGE TANK PRESSURE
CAP
1 NOTICE:
Your radiator or surge tank cap is a 15 psi (105 kPa)
pressure-type cap and must be tightly installed to prevent
coolant loss and possible engine damage from overheating. Be
sure the arrows
on the cap line up with the overflow tube on the
When you replace your radiator or surge tank pressure cap, an AC@ cap
is recommended.
THERMOSTAT
Engine coolant temperature is controlled by a thermostat in the engine
coolant system.
The thermostat stops the flow of coolant through the
radiator until the coolant reaches a preset temperature.
When
you replace your thermostat, an AC@ thermostat is recommended.
284

Downloaded from www.Manualslib.com manuals search engine 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 and a fuse.
If the motor overheats due to heavy snow, etc., the wiper will stop 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 and 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.
BULB CHMT
DESCRIPTION BULB NO.
Ash Tray Illumination .................................. 1445
Backup Lights.
........................................ 2057
Courtesy Reading Light
................................. 168
FogLight .............................................. 886
Glove Compartment Light ............................... 194
Headlights Composite -Inner High Beam
................................ 9005 HB3
-Outer
Low Beam ................................ 9006 HB4
-ExportBulb........................................... H4
Illumination Entry
Lock Lamp ............................ 192
Instrument Panel Illumination
............................ 194
Instrument
Panel Telltales ................................ 194
Cornering Light
................................... 1156
DC7
333