engine Mercury Grand Marquis 2003 s Service Manual

•Cover the highlighted areas to prevent water damage when cleaning
the engine.
•Never wash or rinse the engine while it is running; water in the
running engine may cause internal damage.
PLASTIC (NON-PAINTED) EXTERIOR PARTS
Use only approved products to clean plastic parts. These products are
available from your dealer.
•For routine cleaning, use Motorcraft Detail Wash (ZC-3–A).
•If tar or grease spots are present, use Ford Extra Strength Tar and
Road Oil Removal (B7A-19520–AA).
WINDOWS AND WIPER BLADES
The windshield, rear window and wiper blades should be cleaned
regularly. If the wiper does not wipe properly, substances on the
windshield, rear window or the wiper blades may be the cause. These
may include hot wax treatments used by commercial car washes, tree
sap, or other organic contamination. To clean these items, please follow
these tips:
•The windshield or rear window may be cleaned with a non-abrasive
cleaner such as Motorcraft Ultra Clear Spray Glass Cleaner (ZC-23),
available from your dealer.
•Do not use abrasives, as they may cause scratches.
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FORD, LINCOLN AND MERCURY CAR CARE PRODUCTS
Your Ford, Lincoln or Mercury dealer has many quality products available
to clean your vehicle and protect its finishes. These quality products
have been specifically engineered to fulfill your automotive needs; they
are custom designed to complement the style and appearance of your
vehicle. Each product is made from high quality materials that meet or
exceed rigid specifications. For best results, use the following products
or products of equivalent quality:
Motorcraft Custom Clearcoat Polish (ZC–8–A)
Ford Custom Vinyl Protectant* (not available in Canada)
(F2AZ—19530–A)
Motorcraft Vinyl Cleaner (Canada only) (CXC-93)
Motorcraft Vinyl Conditioner (Canada only) (CXC-94)
Motorcraft Deluxe Leather and Vinyl Cleaner (not available in Canada)
(ZC-11–A)
Ford Extra Strength Tar and Road Oil Remover* (not available in
Canada) (B7A-19520–AA)
Ford Extra Strength Upholstery Cleaner (not available in Canada)
(E8AZ-19523–AA)
Motorcraft Custom Bright Metal Cleaner (ZC-15)
Motorcraft Wheel and Tire Cleaner (ZC-37–A)
Motorcraft Dash and Vinyl Cleaner (ZC-38–A)
Motorcraft Car Care Kit (ZC-26)
Ford Premium Car Wash Concentrate (F2SZ-19523–WC)
Motorcraft Carlite Glass Cleaner (Canada only) (CXC-100)
Motorcraft Spot and Stain Remover (ZC-14)
Motorcraft Detail Wash (ZC-3–A)
Motorcraft Tire Detailer (ZC-28)
Motorcraft Triple Clean (ZC-13)
Motorcraft Ultra-Clear Spray Glass Cleaner (not available in Canada)
(ZC-23)
Motorcraft Engine Shampoo and Degreaser (ZC-20)
* May be sold with the Motorcraft name
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SERVICE RECOMMENDATIONS
To help you service your vehicle:
•We highlight do-it-yourself items in the engine compartment for easy
location.
•We provide a scheduled maintenance guide which makes tracking
routine service easy.
If your vehicle requires professional service, your dealership can provide
the necessary parts and service. Check yourWarranty Guide/Owner
Information Guideto find out which parts and services are covered.
Use only recommended fuels, lubricants, fluids and service parts
conforming to specifications. Motorcraft parts are designed and built to
provide the best performance in your vehicle.
PRECAUTIONS WHEN SERVICING YOUR VEHICLE
•Do not work on a hot engine.
•Make sure that nothing gets caught in moving parts.
•Do not work on a vehicle with the engine running in an enclosed
space, unless you are sure you have enough ventilation.
•Keep all open flames and other burning (cigarettes) material away
from the battery and all fuel related parts.
Working with the engine off
1. Set the parking brake and shift to P (Park).
2. Turn off the engine and remove the key.
3. Block the wheels.
Working with the engine on
1. Set the parking brake and shift to P (Park).
2. Block the wheels.
Note:Do not start your engine with the air cleaner removed and do not
remove it while the engine is running.
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OPENING THE HOOD
1. Inside the vehicle, pull the hood
release handle located under the
instrument panel.
2. Go to the front of the vehicle and
release the auxiliary latch that is
located under the front of the hood.
3. Lift the hood until the lift
cylinders hold it open.
IDENTIFYING COMPONENTS IN THE ENGINE COMPARTMENT
4.6L SOHC V8 engine
1. Brake fluid reservoir
2. Engine oil dipstick
3. Windshield washer fluid reservoir
4. Air filter assembly
5. Power steering fluid reservoir6. Engine coolant reservoir
7. Battery
8. Engine oil filler cap
9. Automatic transmission fluid
dipstick
918
5476
3
2
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WINDSHIELD WASHER FLUID
Add fluid to fill the reservoir if the
level is low. In very cold weather, do
not fill the reservoir completely.
Only use a washer fluid that meets
Ford specification WSB-M8B16–A2.
Refer toLubricant specifications
in this chapter.
State or local regulations on volatile organic compounds may restrict the
use of methanol, a common windshield washer antifreeze additive.
Washer fluids containing non-methanol antifreeze agents should be used
only if they provide cold weather protection without damaging the
vehicle’s paint finish, wiper blades or washer system.
If you operate your vehicle in temperatures below 4.5° C
(40° F), use washer fluid with antifreeze protection. Failure to
use washer fluid with antifreeze protection in cold weather could result
in impaired windshield vision and increase the risk of injury or
accident.
Note:Do not put washer fluid in the engine coolant reservoir. Washer
fluid placed in the cooling system may harm engine and cooling system
components.
ENGINE OIL
Checking the engine oil
Refer to the scheduled maintenance guide for the appropriate intervals
for checking the engine oil.
1. Make sure the vehicle is on level ground.
2. Turn the engine off and wait up to 10 minutes for the oil to drain into
the oil pan.
3. Set the parking brake and ensure the gearshift is securely latched in P
(Park).
4. Open the hood. Protect yourself from engine heat.
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5. Locate and carefully remove the
engine oil level indicator (dipstick).
6. Wipe the indicator clean. Insert the indicator fully, then remove it
again.
•If the oil level iswithin this
range,the oil level is acceptable.
DO NOT ADD OIL.
•If the oil level isbelow this
mark,engineoil must be added
to raise the level within the
normal operating range.
DO NOT OVERFILL
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•If required, add engine oil to the
engine. Refer toAdding engine
oilin this chapter.
•Do not overfill the engine
with oil. Oil levels above this
mark may cause engine
damage.If the engine is
overfilled, some oil must be
removed from the engine by a
qualified service technician.
7. Put the indicator back in and ensure it is fully seated.
Adding engine oil
1. Check the engine oil. For instructions, refer toChecking the engine
oilin this chapter.
2. If the engine oil level is not within the normal operating range, add
only certified engine oil of the recommended viscosity. Remove the
engine oil filler cap and use a funnel to pour the engine oil into the
opening.
3. Recheck the engine oil level. Make sure the oil level is not above the
normal operating range on the engine oil level indicator (dipstick).
4. Install the indicator and ensure it is fully seated.
5. Fully install the engine oil filler cap by turning the filler cap clockwise
until three clicks can be heard.
To avoid possible oil loss, DO NOT operate the vehicle with the
engine oil level indicator and/or the engine oil filler cap removed.
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Engine oil and filter recommendations
Look for this certification
trademark.
Use SAE 5W-20 engine oil.
Only use oils “Certified For Gasoline Engines” by the American
Petroleum Institute (API). To protect your engine’s warranty use
Motorcraft SAE 5W-20 or an equivalent 5W-20 oil meeting Ford
specification WSS-M2C153–H.SAE 5W-20 oil provides optimum fuel
economy and durability performance meeting all requirements for
your vehicle’s engine.
Do not use supplemental engine oil additives, cleaners or other engine
treatments. They are unnecessary and could lead to engine damage that
is not covered by Ford warranty.
Change your engine oil according to the appropriate schedule listed in
the scheduled maintenance guide.
Ford production and aftermarket (Motorcraft) oil filters are designed for
added engine protection and long life. If a replacement oil filter is used
that does not meet Ford material and design specifications, start-up
engine noises or knock may be experienced.
It is recommended you use the appropriate Motorcraft oil filter (or
another brand meeting Ford specifications) for your engine application.
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When lifting a plastic-cased battery, excessive pressure on the
end walls could cause acid to flow through the vent caps,
resulting in personal injury and/or damage to the vehicle or battery.
Lift the battery with a battery carrier or with your hands on opposite
corners.
Keep batteries out of reach of children. Batteries contain sulfuric
acid. Avoid contact with skin, eyes or clothing. Shield your eyes
when working near the battery to protect against possible splashing of
acid solution. In case of acid contact with skin or eyes, flush
immediately with water for a minimum of 15 minutes and get prompt
medical attention. If acid is swallowed, call a physician immediately.
Battery posts, terminals and related accessories contain lead and
lead compounds.Wash hands after handling.
Because your vehicle’s engine is electronically controlled by a computer,
some control conditions are maintained by power from the battery. When
the battery is disconnected or a new battery is installed, the engine must
relearn its idle and fuel trim strategy for optimum driveability and
performance. To begin this process:
1. With the vehicle at a complete stop, set the parking brake.
2. Put the gearshift in P (Park), turn off all accessories and start the
engine.
3. Run the engine until it reaches normal operating temperature.
4. Allow the engine to idle for at least one minute.
5. Turn the A/C on and allow the engine to idle for at least one minute.
6. Release the parking brake. With your foot on the brake pedal and with
the A/C on, put the vehicle in D (Drive) and allow the engine to idle for
at least one minute.
7. Drive the vehicle to complete the relearning process.
•The vehicle may need to be driven 16 km (10 miles) or more to
relearn the idle and fuel trim strategy.
•If you do not allow the engine to relearn its idle trim, the idle
quality of your vehicle may be adversely affected until the idle
trim is eventually relearned.
If the battery has been disconnected or a new battery has been installed,
the clock and radio settings must be reset once the battery is
reconnected.
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•Always dispose of automotive
batteries in a responsible manner.
Follow your local authorized
standards for disposal. Call your
local authorized recycling center
to find out more about recycling
automotive batteries.
ENGINE COOLANT
Checking engine coolant
The concentration and level of engine coolant should be checked at the
mileage intervals listed in the scheduled maintenance guide. The coolant
concentration should be maintained at 50/50 coolant and distilled water,
which equates to a freeze point of -36° C (-34° F). Coolant concentration
testing is possible with a hydrometer or antifreeze tester (such as the
Rotunda Battery and Antifreeze Tester, 014–R1060). The level of coolant
should be maintained at the “cold full” of “cold fill range” level in the
coolant reservoir. If the level falls below, add coolant per the instructions
in theAdding engine coolantsection.
Your vehicle was factory-filled with a 50/50 engine coolant and water
concentration. If the concentration of coolant falls below 40% or above
60%, the engine parts could become damaged or not work properly.A
50–50 mixture of coolant and water provides the following:
•Freeze protection down to -36° C (-34° F).
•Boiling protection up to 129° C (265° F).
•Protection against rust and other forms of corrosion.
•Enables calibrated gauges to work properly.
LEAD
RETURN
RECYCLE
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