engine overheat OLDSMOBILE INTRIGUE 1999 Owner's Manual

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6-26
Cooling System Pressure Cap
(3.5L V6 Engine)
The cooling system pressure cap is located on the
surge tank.
NOTICE:
Your cooling system pressure 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.
When you replace your radiator pressure cap, an AC
Delco
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 Delco


thermostat is recommended.
Engine Coolant
The cooling system in your vehicle is filled with
DEX
-COOL
engine coolant. This coolant is designed
to remain in your vehicle for 5 years or 150,000 miles
(240 000 km), whichever occurs first, if you add only
DEX
-COOL
extended life coolant.
The following explains your cooling system and how to
add coolant when it is low. If you have a problem with
engine overheating or if you need to add coolant to your
radiator, see ªEngine Overheatingº in the Index.
A 50/50 mixture of clean, drinkable water and
DEX
-COOL
coolant will:

Give freezing protection down to
-34F (-37C).

Give boiling protection up to 265F (129C).

Protect against rust and corrosion.

Help keep the proper engine temperature.

Let the warning lights and gages work as
they should.
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6-27
NOTICE:
When adding coolant, it is important that you use
only DEX
-COOL
(silicate-free) coolant.
If coolant other than DEX-COOL is added to the
system, premature engine, heater core or
radiator corrosion may result. In addition, the
engine coolant will require change sooner
-- at
30,000 miles (50 000 km) or 24 months,
whichever occurs first. Damage caused by the use
of coolant other than DEX
-COOL
is not
covered by your new vehicle warranty.
What to Use
Use a mixture of one-half clean, drinkable water and
one
-half DEX-COOL
coolant which won't damage
aluminum parts. If you use this coolant mixture, you
don't need to add anything else.
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 mixture will. Your vehicle's coolant
warning system is set for the proper coolant
mixture. With plain water or the wrong mixture,
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 mixture of clean, drinkable water and
DEX
-COOL
coolant.
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6-28
NOTICE:
If you use an improper coolant mixture, your
engine could overheat and be badly damaged.
The repair cost wouldn't be covered by your
warranty. Too much water in the mixture can
freeze and crack the engine, radiator, heater core
and other parts.
If you have to add coolant more than four times a year,
have your dealer check your cooling system.
NOTICE:
If you use the proper coolant, you don't have to
add extra inhibitors or additives which claim to
improve the system. These can be harmful.
Checking Coolant (3800 V6 Engine)
The coolant recovery tank for the 3800 V6 engine is
located in the engine compartment, behind the headlamp
on the driver's side.
The vehicle must be on a level surface. When your
engine is cold, the coolant level should be at the COLD
mark or a little higher. When your engine is warm, the
level should be up to the HOT mark or a little higher.
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6-29
If this low coolant warning
light comes on and stays on,
it means you're low on
engine coolant.
Adding Coolant
If you need more coolant, add the proper DEX
-COOL

coolant mixture at the coolant recovery tank, but be
careful not to spill it.
If the coolant recovery tank is completely empty, add
coolant to the radiator. (See ªEngine Overheatingº in
the Index.)
CAUTION:
Turning the radiator pressure cap when the
engine and radiator 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 a
little
-- when the engine and radiator are hot.
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.
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9-4
Driving (Continued)
In the Rain 4-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Night 4-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
On Curves 4-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
On Grades While Towing a Trailer 4-40 . . . . . . . . . . . . . . .
On Hill and Mountain Roads 4-25 . . . . . . . . . . . . . . . . . . . .
On Snow and Ice 4-28 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Through Deep Water 4-21 . . . . . . . . . . . . . . . . . . . . . . . . . .
Wet Roads 4-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Winter 4-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
With a Trailer 4-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DRL 2-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drunken Driving 4-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Equipment, Adding 3-27, 6-63 . . . . . . . . . . . . . . .
Electrical System 6-63 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrochromic Day/Night Rearview Mirror 2-42 . . . . . . . . . .
Engine 6-11, 6-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Cleaner/Filter 6-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant 6-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Heater 2-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Level Check 7-14 . . . . . . . . . . . . . . . . . . . . . . . . . .
Coolant Temperature Gage 2-58 . . . . . . . . . . . . . . . . . . . . .
Exhaust 2-13, 2-28, 4-31 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuse Block (Passenger's Side) 6-67 . . . . . . . . . . . . . . . . . . .
Identification 6-62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Level Check 7-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overheated Protection Operating Mode 5-9 . . . . . . . . . . . .
Overheating 5-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Running While Parked 2-29 . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 6-70 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting Your 2-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Engine Cooling When Trailer Towing 4
-41 . . . . . . . . . . . . . . .
Engine Oil 6-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adding 6-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Additives 6-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Change Light, How to Reset 6-18 . . . . . . . . . . . . . . . . . . . .
Change Oil Light 6-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking 6-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Used 6-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
What Kind to Use 6-16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
When to Change 6-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Enhanced Traction System Warning Light 2-57, 4-10 . . . . . .
Ethanol 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exhaust, Engine 2-13, 2-28, 4-31 . . . . . . . . . . . . . . . . . . . . . .
Exit Illumination 2-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Exterior Lamps 2-37 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fabric Cleaning 6-54 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fabric Protection 6-55 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filling a Portable Fuel Container 6-9 . . . . . . . . . . . . . . . . . . . .
Filling Your Tank 6-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filter, Air Cleaner 6-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Finish Care 6-58 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Finish Damage 6-59 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
First Gear, Automatic Transaxle 2-24 . . . . . . . . . . . . . . . . . . .
Flashers, Hazard Warning 5-2 . . . . . . . . . . . . . . . . . . . . . . . . .
Flash-to-Pass Feature 2-32 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flat, If a Tire Goes 5-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flat Tire, Changing 5-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluid Capacities 6-70 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fluids and Lubricants 7-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fog Lamps 2-38 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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9-7
Oil Warning 2-62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Belt Reminder 1-6, 2-53 . . . . . . . . . . . . . . . . . . . . . .
Security 2-63 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Engine Soon 2-59 . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Vehicle Soon 2-65 . . . . . . . . . . . . . . . . . . . . . . . . . .
Traction Control System Warning 2-56, 4-10 . . . . . . . . . . .
Traction Off Warning 2-56, 2-57, 4-10 . . . . . . . . . . . . . . . .
Loading Your Vehicle 4-32 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lockout Prevention 2-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Locks 2-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic Door 2-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door 2-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ignition Transaxle Lock Check 7-17 . . . . . . . . . . . . . . . . . .
Key Lock Cylinder Service 7-15 . . . . . . . . . . . . . . . . . . . . .
Last Door Closed 2-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lockout Prevention 2-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Door 2-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Door Security 2-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trunk 2-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low Coolant Warning Light 2-59 . . . . . . . . . . . . . . . . . . . . . .
Low Oil Level Light 2-63 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Low Washer Fluid Light 2-64 . . . . . . . . . . . . . . . . . . . . . . . . .
Lubricants and Fluids 7-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lubrication Service, Body 7-15 . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance, Normal Replacement Parts 6-71 . . . . . . . . . . .
Maintenance Record 7-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance Schedule 7-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Owner Checks and Services 7-14 . . . . . . . . . . . . . . . . . . . . .
Periodic Maintenance Inspections 7-18 . . . . . . . . . . . . . . . .
Recommended Fluids and Lubricants 7-19 . . . . . . . . . . . . .
Scheduled Maintenance Services 7-4 . . . . . . . . . . . . . . . . . . Maintenance, Underbody 6
-60 . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance When Trailer Towing 4-41 . . . . . . . . . . . . . . . . .
Malfunction Indicator Lamp 2-59 . . . . . . . . . . . . . . . . . . . . . .
Manual
Control, Climate Control system 3
-5 . . . . . . . . . . . . . . . . . .
Front Seat 1-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Methanol 6-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mirrors 2-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Convex Outside 2-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrochromic Day/Night Rearview 2-42 . . . . . . . . . . . . . .
Heated Outside 2-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inside Day/Night Rearview 2-41 . . . . . . . . . . . . . . . . . . . . .
Power Outside 2-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Visor Vanity 2-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MMT 6-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mountain Roads 4-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net, Convenience 2-45 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Neutral, Automatic Transaxle 2-22 . . . . . . . . . . . . . . . . . . . . .
New Vehicle Break-In 2-15 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Night Vision 4-18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Normal Maintenance Replacement Parts 6-71 . . . . . . . . . . . . .
Odometer 2-51 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Odometer, Trip 2-52 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Off-Road Recovery 4-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil
Engine 6
-13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warning Light 2-62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OnStar
System 2-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overheated Engine Protection Operating Mode 5-9 . . . . . . . .
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9-8
Overheating Engine 5-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Owner Checks and Services 7-14 . . . . . . . . . . . . . . . . . . . . . . .
Owner Publications, Ordering 8-12 . . . . . . . . . . . . . . . . . . . . .
Paint Spotting, Chemical 6-60 . . . . . . . . . . . . . . . . . . . . . . . .
Park
Automatic Transaxle 2
-21 . . . . . . . . . . . . . . . . . . . . . . . . . .
Shifting Into 2-25 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shifting Out of 2-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parking
At Night 2
-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake 2-24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake Mechanism Check 7-17 . . . . . . . . . . . . . . . . . . . . . . .
Lots 2-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Over Things That Burn 2-28 . . . . . . . . . . . . . . . . . . . . . . . .
With a Trailer 4-40 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Passenger Position 1-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Passing 4-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Passlock
2-15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Periodic Maintenance Inspections 7-18 . . . . . . . . . . . . . . . . . .
Power
Accessory Outlet 2
-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door Locks 2-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Option Fuses 6-63 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outside Mirrors 2-44 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Six-Way Seat 1-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering 4-12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Steering Fluid 6-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sunroof 2-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windows 2-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power Steering Fluid 6
-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
How to Check 6-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
What to Use 6-32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
When to Check 6-31 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pregnancy, Use of Safety Belts 1-18 . . . . . . . . . . . . . . . . . . . .
Problems on the Road 5-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Publications, Service and Owner 8-11 . . . . . . . . . . . . . . . . . . .
Radiator 5-17 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radiator Pressure Cap 6-25 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radio Reception 3-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Radios 3-10, 3-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rain, Driving In 4-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear
Console Cupholders 2
-45 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Door Security Locks 2-8 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Outside Seat Position 1-26 . . . . . . . . . . . . . . . . . . . . . . . . . .
Safety Belt Comfort Guides 1-29 . . . . . . . . . . . . . . . . . . . . .
Seat Passengers 1-26 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Window Defogger 3-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rearview Mirror
Electrochromic Day/Night 2
-42 . . . . . . . . . . . . . . . . . . . . . .
Inside Day/Night 2-41 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reclining Front Seatbacks 1-3 . . . . . . . . . . . . . . . . . . . . . . . . .
Recommended Fluids and Lubricants 7-19 . . . . . . . . . . . . . . .
Recovery Tank, Coolant 5-15 . . . . . . . . . . . . . . . . . . . . . . . . . .
Recreational Vehicle Towing 4-31 . . . . . . . . . . . . . . . . . . . . . .
Refrigerants, Air Conditioning 6-71 . . . . . . . . . . . . . . . . . . . .
Remote
Keyless Entry 2
-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trunk Release 2-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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