check engine CADILLAC DEVILLE 1993 7.G Service Manual

Downloaded from www.Manualslib.com manuals search engine How To Reset the Oil Life Indicator: After the oil has been changed,
press and hold the
“RANGE” and “RESET” buttons between 5 and 60
seconds. Once the buttons are released the “CHANGE OIL SOON”
light will flash 4 times to indicate it has reset to 100. If the “CHANGE
OIL SOON” light comes on for 5 seconds it did not reset. You will need
to reset the system again. The percentage
of oil life remaining may be
checked at any time by pressing the
“RANGE” and “FUEL USED” on
the Fuel Data center.
Engine Block Heater: An engine block heater can be a big help if you
have to park outside
in very cold weather, O°F (-18OC) or colder. If your
vehicle has this option, see “Engine Block Heater” in the Index.
What to Do with Used Oil:
’
A CAUTION:
Used engine oil contains things that have caused skin cancer in
laboratory animals. Don’t let used oil stay
on your skin for very
long. Clean your skin and nails with soap and water, or a good
hand cleaner. Wash or properly throw away clothing or rags
containing used engine oil.
Used oil can be a real threat to the environment. If you change your own
oil, be sure to drain all free-flowing oil from the filter before disposal.
Don’t ever dispose
of oil by pouring it on the ground, into sewers, or into
streams or bodies
of water. Instead, recycle it by taking it to a place that
collects used oil.
If you have a problem properly disposing of your used
oil, ask your dealer, a service station or
a local recycling center for help.

Downloaded from www.Manualslib.com manuals search engine AUTOMATIC TRAS.E FLUID
When 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 a 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.
Wait at least
30 minutes before checking the transaxle fluid level if you
have been driving:
0 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.
275

Downloaded from www.Manualslib.com manuals search engine To check the fluid level:
0 Park your vehicle on a level place.
Place the shift lever in "P" (Park) with the parking brake applied.
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).
0 Let the engine run at idle for three to five minutes.
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.

Downloaded from www.Manualslib.com manuals search engine 3. Check both sides of the dipstick, and read the lower level. The fluid
level must be in the cross-hatched area.
4. If the fluid level is where it should be, push the dipstick back in all the
How to Add Fluid:
way.
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. It doesn’t take much
fluid, generally less than a pint. Don’t overfill. We recommend you use
only fluid labeled
DEXRONWIE, because fluids with that label are
made especially for your automatic transaxle. Damage caused
by fluid
other than DEXRONWIE 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
the way.

Downloaded from www.Manualslib.com manuals search engine Adding Coolant
To Check Coolant:
When your engine
is
cold, the coolant level
should be at “FULL
COLD,” or a little
higher. When your
engine is
warm, the
level should be
up to
“FULL
HOT,” or a
little higher.
To Add Coolant: If you need more coolant, add the proper mix at the
coolant recovery tank.
A CAUTION: I
lhrning the radiator pressure cap when the engine and radiator si:;
-z. *?’
are hot can allow steam and scalding liquids to blow out and
burn you badly. With the coolant recovery tank, you will almost
never have to add coolant at the radiator. Never turn the
radiator pressure cap
-- even q little -- when tken le and
radiator are hot.
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.. .
279

Downloaded from www.Manualslib.com manuals search engine -.. POWER STEEHNG FLUID
L I
i
__ How To Check Power Steering Fluid:

Downloaded from www.Manualslib.com manuals search engine put in, the fluid level goes back up. The other reason is that fluid is
leaking out
of the brake system. If it is, you should have your brake
system fixed, since a leak means that sooner
or later your brakes won’t
work well, or won’t work at all.
So, it isn’t a good idea to “top off” your
brake fluid. Adding brake fluid won’t correct a leak.
If you add fluid when
your linings are worn, then you’ll have too much fluid when you get new
brake linings.
You should add (or remove) brake fluid, as necessary, only
when work is done on the brake hydraulic system.
I
I A= CAUTION
I
I only when work is done on the brake hydraulic system.
If you have too much brake fluid, it can spill on the engine. The
fluid will burn if the engine is hot enough. You or others could
be burned, and your vehicle could be damaged. Add brake fluid
U
When your brake fluid falls to a low level, your brake warning light will
come on. See “Brake System Warning Light” in the Index.
To Check Brake Fluid:
You can check the brake fluid without taking off the cap. If it’s low, fill it
to the maximum “FLUID LEVEC’ indicator.
285

Downloaded from www.Manualslib.com manuals search engine CAUTION:
Poorly maintained and improperly used tires are dangerous.
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I,
a
Overloading your tires can cause overheating as a result of
too
much friction. You could have an air-out and a serious
accident. See “Loading Your Vehicle” in the Index.
Underinflated tires pose the
same danger as overloaded
tires. The resulting accident could cause serious iqjury.
Check all tires frequently to maintain the recommended
pressure. Tire pressure should be checked when your tires
are cold.
Overinflated tires are more likely to be cut, punctured, or
broken by a sudden impach such as whenyou hit a pothole.
Keep
tires at the recommended pressure.
Worn, old tires
can cause accidents. If your tread is badly
worn, or if your tires have been damaged, replace them.
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I-
Inflation - Tire Pressure
The Tire-Loading Information label which is on the driver’s door shows
the correct inflation pressures for your tires, when they’re
cold. “Cold”
means your vehicle has been sitting for at least three hours or driven no
more than a mile.

Downloaded from www.Manualslib.com manuals search engine When to Check Check your tires once a month or more. Your tire
pressure should be:
30 psi (210 kPa) (Front and Rear)
35 psi (241 kPa) (Coachbuilder Package - Front and Rear)
32 psi (220 kPa) (H.D. Livery - Front and Rear)
32 psi (220 kPa) (Touring Sedan - Front)
30 psi (210 kPa) (Touring Sedan - Rear)
Recommended tire sizes are:
P205/70R15 (Front and Rear)
P215/75R15 (Coachbuilder - Front and Rear)
0 P215/60R16 Goodyear GA (Touring Sedan)
0 T125/70D15 (Compact Spare)
T125/70R15 (Touring Sedan - Compact Spare)
Don’t forget your compact spare tire. It
should be at 60 psi (420 kPa).
307

Downloaded from www.Manualslib.com manuals search engine How to Check Use a good quality pocket-type gage to check tire
pressure. Simply looking at the tires will not tell you the pressure,
especially if you have radial tires
-- which may look properly inflated even
if they’re underinflated.
If your tires have valve caps, be sure to put them back on. They help
prevent leaks by keeping out dirt and moisture.
Tire Inspection and Rotation
To make your tires last longer, have them inspected and rotated at the
mileages recommended in your Maintenance Schedule. See “Scheduled Maintenance Service” in the Index.
FRONT Use this rotation pattern.
After the tires have been rotated, adjust the front and rear inflation
pressure as shown on the Tire-Loading Information label. Make certain
that all wheel nuts are properly tightened.
See “Wheel Nut Torque” in the
Index.