check engine CADILLAC DEVILLE 1994 7.G Service Manual

Downloaded from www.Manualslib.com manuals search engine . A CAUTION:
An electric fan under the hood can start up and injure you even
when the engine is not running. Keep hands, clothing and tools
away from any underhood electric fan.
A CAUTION:
Things that burn can get on hot engine parts and start a fire.
These include liquids like gasoline, oil, coolant, brake fluid,
windshiefd washer and other fluids, and plastic
or rubber, You
or others could be burned, Be careful not to drop or spill things
that
will burn onto a hot engine.
Fluid Usage Label
Use the fluid usage label to identify the correct fluid you want to check.
GREEN: Engine Coolant
ORANGE: Power Steering Fluid
YELLOW Engine Oil
RED: Transmission Fluid
WHITE: Brake Fluid
BLUE: Washer Fluid
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Downloaded from www.Manualslib.com manuals search engine - ENGINE OIL
A CHECK OIL LEVEL message will appear when the engine oil is
approximately
a quart low. If the message is displayed, check the dipstick
level and add oil as needed. -
It’s a good idea to check your engine oil every time you get fuel. In order
to get an accurate reading, the
oil must be warm and the vehicle must be
on level ground. ~-~
Turn off the engine
and give the oil
a few
minutes to drain back
into the
oil pan. If you
don’t, the oil dipstick
might not show the
actual level.
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Downloaded from www.Manualslib.com manuals search engine To Check Engine Oil
Pull out the dipstick and clean it with a paper towel or cloth, then push it
back in all the way. Remove it again, keeping the tip lower, and check the
level.
When to Add Oil
If the oil is at or below the ADD line, then you’ll need to add some oil.
But you must use the right kind. This section explains what kind of oil to
use.
For crankcase capacity, see “Capacities and Specifications” in the
Index.
NOTICE:
-
Don’t add too much oil. If your engine has so much oil that the
oil level gets above the cross-hatch area that shows the proper
operating range, your engine could be damaged.

Downloaded from www.Manualslib.com manuals search engine Engine Oil Additives
Don’t add anything to your oil. Your Cadillac dealer is ready to advise if
you think something should be added.
Men to Change Engine Oil
Your Cadillac has an “Oil Life Indicator.” This feature will let you know
when to change your oil
-- usually between 3,000 miles (5 000 km) and
7,500 miles (12 500 km) since your last oil change. Under severe
conditions, the indicator may come on before
3,000 miles (5 000 km).
Never drive your vehicle more than
7,500 miles (12 500 km) or 12 months
without an oil change.
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The system won’t detect dust in the oil. So, if you drive in a dusty area, be
sure to change your oil every 3,000 miles (5 000 km) or sooner if the
“CHANGE ENGINE OK’ message is displayed. Remember to reset the
‘ ’
Oil Life Indicator when the oil has been changed. For more information,
see
“Oil Life Indicator” in the Index.
7
How to Reset the Oil Life Indicator
After the oil has been changed, display the “OIL LIFE LEFT” message
by pressing the INFORMATION button. Then press and hold the
RESET button until the display shows “100”. This resets the oil life index.
The message
will remain off until the next oil change is needed. The
percentage
of oil life remaining may be checked at any time by pressing
the INFORMATION button several times until the “OIL LIFE LEFT”
message appears. For more information on the Oil Life Index feature, see
-
“Oil Life Index” in the Index.
Engine Coolant Heater (Engine Block Heater)
An engine coolant heater can be a big help if you have to park outside in
very cold weather,
0°F (-18°C) or colder. If your vehicle has this option,
see “Engine Coolant Heater” in the Index.
264

Downloaded from www.Manualslib.com manuals search engine NOTICE:
If the air cleaner is off, a backfire can cause a damaging engine
fire. And, dirt can easily get into your engine, which will damage
it. Always have the air cleaner
in place when you’re driving.
AUTOMMTIC TRANSAXLE FLUID
Men to Check and Change
A good time to check your automatic transaxle fluid level is when the
engine oil is changed. Refer to the Maintenance Schedule to determine
when to change your fluid. See “Scheduled Maintenance Services” in the
Index.
How to Check
Because this operation can be a little difficult, you may choose to have
this
done at your Cadillac dealership Service Department.
If you do it yourself, be sure to
follow all the instructions here, or you
could
get a false reading on the dipstick.
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Downloaded from www.Manualslib.com manuals search engine I NOTICE:
Too much or too little fluid can damage your transaxle. Too
much can mean that some of the fluid could come out and fall
on hot engine parts or exhaust system, starting a fire. Be sure to
get an accurate reading if you check your transaxle fluid.
Wait at least 30 minutes before checking the transaxle fluid level if you
have been driving:
When outside temperatures are above 90" F (32" C).
0 At high speed for quite a while.
In heavy traffic -- especially in hot weather.
While pulling a trailer.
To get the right reading, the fluid should be at normal operating
temperature, which is
180 " F to 200 " F (82 C to 93 C).
Get the vehicle warmed up by driving about 15 miles (24 km) when
outside temperatures are above
50 F (10 C). If it's colder than 50 F
(10 " C), you may have to drive longer.
To check thefluid level
Park your vehicle on a level place.
With the parking brake applied, place the shift lever in "P" (Park).
With your foot on the brake pedal, move the shift lever through each
gear range, pausing for about three seconds in each range. Then,
position the shift lever in "P" (Park).
Let the engine run at idle for three to five minutes.

Downloaded from www.Manualslib.com manuals search engine Then, without shutting off the engine, follow these steps:
1. Pull out the dipstick and wipe it with a clean rag or paper towel.
2. Push it back in all the way, wait three seconds and then pull it back out
again.
3. Check both sides of the dipstick, and read the lower level. The fluid
level must be in the cross-hatched area.
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4. If the fluid.leve1 is in the acceptable range, push the dipstick back in
all the way.
How to Add Fluid
Refer to the Maintenance Schedule to determine what kind of transaxle
fluid to use. See “Recommended Fluids and Lubricants” in the Index.
If the fluid level is low, add only enough of the proper fluid to bring the
level into the cross-hatched area on the dipstick.
1. Pull out the dipstick. ..
2. Using a long-neck funnel, add enough fluid at the dipstick hole to
bring it to the-proper 1evel.It doesn’t take
much fluid, generally less
than a pint
(0.5L). Don’t overfin. Wenxommend you use only fluid
labeled DEXRON@-111 or DEXRON@-IIE, because fluids with that
label are made especially for your automatic transaxle. Damage
caused
by fluid other than DEXRON@-111 or DEXRON@-IIE is not
covered by your new vehicle warranty.
Check.”
After adding fluid, recheck the fluid level as described under “How to
269

Downloaded from www.Manualslib.com manuals search engine .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
OF others could be burned. Use a 50/50 mix of clean
water and
a proper antifreeze.
NOTICE:
If you use an improper coolant mix, your engine could overheat
and be badly damaged. Therepair cost wouldn’t be covered
by
your warranty. Too much water in the mix can freeze and crack
the engine, radiator, heater .coreand other parts.
Adding Coolant
The Coolant Recovery Tank is located on the right side of your vehicle.
To Check Coolant
When your -engine is cold, the coolant level should be at the FULL
COLD mark or a little higher. When your engine is warm, the level
should be up to
FULL HOT mark or a little higher.
To Add Coolant
If you need more coolant, add the proper mix at the coolant recoverv
tank.
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Downloaded from www.Manualslib.com manuals search engine How To Check Power Steering Fluid
Unscrew the cap and wipe the dipstick with a clean rag. Replace the cap
and completely tighten
it. Then remove the cap again and look at the
fluid level
on the dipstick.
What to Add
0 When the engine
compartment
is
hot, the level
should be at the
“HOT” mark.
0 When the engine
compartment
is
cool, the level
should be at the
“FULL COLD”
mark.
Refer to
the Maintenance Schedule to determine what kind of fluid to
use.
NOTICE:
When adding power steering fluid or making a complete fluid
change, always use the proper fluid. Failure
to use the proper
fluid can cause leaks and damage hoses and seals.
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