2001 CADILLAC DEVILLE maintenance

6-60
Cleaning the Outside of the
Windshield and Wiper Blades
If the windshield is not clear after using the windshield
washer, or if the wiper blade chatters when running, wax,
sap or other material may be on the blade or windshield.
Clean the outside of the windshield with GM Windshield
Cleaner, Bon Ami

Powder (non-scratching glass
cleaning powder), GM Part No. 1050011. The windshield
is clean if beads do not form when you rinse it with water.
Grime from the windshield will stick to the wiper blades
and affect their performance. Clean the blade by wiping
vigorously with a cloth soaked in full
-strength windshield
washer solvent. Then rinse the blade with water.
Check the wiper blades and clean them as necessary;
replace blades that look worn.
Weatherstrips
Silicone grease on weatherstrips will make them last
longer, seal better, and not stick or squeak. Apply
silicone grease with a clean cloth at least every
six months. During very cold, damp weather more
frequent application may be required.
See ªRecommended Fluids and Lubricantsº in the
Maintenance Schedule booklet.
Cleaning the Outside of Your Vehicle
The paint finish on your vehicle provides beauty, depth
of color, gloss retention and durability.
Washing Your Vehicle
The best way to preserve your vehicle's finish is to
keep it clean by washing it often with lukewarm or
cold water.
Don't wash your vehicle in the direct rays of the sun.
Use a car washing soap. Don't use strong soaps or
chemical detergents. Be sure to rinse the vehicle well,
removing all soap residue completely. You can get
GM
-approved cleaning products from your dealer. See
ªAppearance Care and Materialsº in the Index. Don't
use cleaning agents that are petroleum based, or that
contain acid or abrasives. All cleaning agents should be
flushed promptly and not allowed to dry on the surface,
or they could stain. Dry the finish with a soft, clean
chamois or an all
-cotton towel to avoid surface
scratches and water spotting.
High pressure car washes may cause water to enter
your vehicle.

6-63
Finish Damage
Any stone chips, fractures or deep scratches in the finish
should be repaired right away. Bare metal will corrode
quickly and may develop into a major repair expense.
Minor chips and scratches can be repaired with touch
-up
materials available from your dealer or other service
outlets. Larger areas of finish damage can be corrected
in your dealer's body and paint shop.
Underbody Maintenance
Chemicals used for ice and snow removal and dust
control can collect on the underbody. If these are not
removed, accelerated corrosion (rust) can occur on the
underbody parts such as fuel lines, frame, floor pan
and exhaust system even though they have
corrosion protection.At least every spring, flush these materials from the
underbody with plain water. Clean any areas where mud
and other debris can collect. Dirt packed in closed areas
of the frame should be loosened before being flushed.
Your dealer or an underbody car washing system can do
this for you.
Chemical Paint Spotting
Some weather and atmospheric conditions can create a
chemical fallout. Airborne pollutants can fall upon and
attack painted surfaces on your vehicle. This damage can
take two forms: blotchy, ringlet
-shaped discolorations,
and small irregular dark spots etched into the
paint surface.
Although no defect in the paint job causes this, Cadillac
will repair, at no charge to the owner, the surfaces of
new vehicles damaged by this fallout condition within
12 months or 12,000 miles (20 000 km) of purchase,
whichever occurs first.

6-64
GM Vehicle Care/Appearance Materials
PART NUMBERSIZEDESCRIPTIONUSAGE
99495423 in. x 25 in.Polishing Cloth ± Wax TreatedExterior polishing cloth
105017216 oz. (0.473 L)Tar and Road Oil RemoverRemoves tar, road oil and asphalt
105017316 oz. (0.473 L)Chrome Cleaner and PolishUse on chrome, stainless steel, nickel, copper and brass
105017416 oz. (0.473 L)White Sidewall Tire CleanerRemoves soil and black marks from whitewalls
105021432 oz. (0.946 L)Vinyl CleanerCleans vinyl tops, upholstery and convertible tops
105042723 oz. (0.680 L)Glass CleanerRemoves dirt, grime, smoke and fingerprints
1052918**8 oz. (0.237 L)Armor All
ProtectantProtects leather, wood, acrylics, Plexiglas
, plastic,
rubber and vinyl
105292516 oz. (0.473 L)Multi-Purpose
Interior CleanerCleans carpets, seats, interior trim, door panels
and floor mats
105292916 oz. (0.473 L)Wheel CleanerSpray on and rinse with water
10529308 oz. (0.237 L)Capture Dry Spot RemoverAttracts, absorbs and removes soils on fabric
123457212.5 sq. ft.Synthetic ChamoisShines vehicle without scratching
1234572512 oz. (0.354 L)Silicone Tire ShineSpray on tire shine
12377964*16 oz. (0.473 L)Finish EnhancerRemoves dust, fingerprints and surface contaminants
12377966*16 oz. (0.473 L)Cleaner WaxRemoves light scratches and oxidation and protects finish
12377984*16 oz. (0.473 L)Surface CleanerRemoves contaminants, blemishes and swirl marks
See your General Motors Parts Department for these products.
See ªRecommended Fluids and Lubricantsº in the Maintenance Schedule booklet.
* For exterior use only.
** Not recommended for use on instrument panels.

6-75
Replacement Bulbs
Application Number
Headlamps, Composite
Inner High Beam 9005. . . . . . . . . . . . . . . . . . . . . . . .
Outer Low Beam 9006. . . . . . . . . . . . . . . . . . . . . . . .
Front Turn Signal 3157. . . . . . . . . . . . . . . . . . . . . . . .
Cornering Lamps 3157. . . . . . . . . . . . . . . . . . . . . . . .
Capacities and Specifications
The following approximate capacities are given in
English and metric conversions. Please refer to
ªRecommended Fluids and Lubricantsº in the
Maintenance Schedule booklet for more information.
Engine Specifications
Displacement 279 cubic inches (4 565 cc). . . . . . . . .
Type 4.6 L DOHC V8. . . . . . . . . . . . . . . . . . . . . . . . .
VIN Engine Code
DeVille and DHS Y. . . . . . . . . . . . . . . . . . . . . . . . .
DTS 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Horsepower
DeVille and DHS 275 (bhp) @ 5600 rpm. . . . . . . .
205 (kW) @ 5600 rpm
DTS 300 (bhp) @ 6000 rpm. . . . . . . . . . . . . . . . . . . .
224 (kW) @ 6000 rpm
Torque
DeVille and DHS 300 (lb
-ft) @ 4000 rpm . . . . . . .
407 (N´m) @ 4000 rpm
DTS 295 (lb
-ft) @ 4400 rpm . . . . . . . . . . . . . . . . . .
400 (N´m) @ 4400 rpm
Firing Order 1
-2-7-3-4-5-6-8 . . . . . . . . . . . . . . . . . . .
Thermostat Starts To Open 177
-184
F (81-85
C) . .

6-76 Wheel Nut Torque
100 lb-ft (140 N´m)
Capacities
Transaxle (4T80-E) 15.0 quarts (14.2 L). . . . . . . . . .
Crankcase (Engine Oil with
Filter Change) 7.5 quarts (7.1 L). . . . . . . . . . . . . . . .
Engine Cooling System 12.5 quarts (11.8 L). . . . . . . .
Fuel Tank 18.5 U.S. gallons (70.1 L). . . . . . . . . . . . .
Air Conditioning Refrigerant See refrigerant. . . . . . . .
charge label under the hood.
All capacities are approximate. When adding, be sure to
fill to the approximate level, as recommended in this
manual. Recheck fluid level after filling.
Normal Maintenance
Replacement Parts
Engine Air
Cleaner/Filter Element AC Type A1208C. . . . . . . .
Passenger Compartment Air
Filter Element AC Type. . . . . . . . . . . . . . . . . . . . . .
Fuel Filter Element AC Type GF
-627 . . . . . . . . . . . .
Engine Oil Filter AC Type PF
-58 . . . . . . . . . . . . . . . .
PCV Valve AC Type CV
-774C . . . . . . . . . . . . . . . . . .
Spark Plugs PT16EPR
-C13 . . . . . . . . . . . . . . . . . . . .
(GM Part 12561466)
Gap: 0.050 inches (1.3 mm). . . . . . . . . . . . . . . . . . .
Thermostat AC Type 131
-66 . . . . . . . . . . . . . . . . . . . .
Windshield Wiper Blade
(Shepherd's Hook Type) 22 inches (56.5 cm). . . . . .
Vehicle Dimensions
Wheel Base 115.5 inches (293.4 cm). . . . . . . . . . . . .
Length 207.2 inches (526.3 cm). . . . . . . . . . . . . . . . .
Height 56.7 inches (144.0 cm). . . . . . . . . . . . . . . . . . .
Width 74.5 inches (189.2 cm). . . . . . . . . . . . . . . . . . .
Front Tread 62.7 inches (159.3 cm). . . . . . . . . . . . . . .
Rear Tread 62.2 inches (158.0 cm). . . . . . . . . . . . . . .