coolant temperature JEEP PATRIOT 2007 1.G Owners Manual

Cooling System
WARNING!
²When working near the radiator cooling fan, dis-
connect the fan motor lead or turn the ignition
switch to the OFF position. The fan is temperature
controlled and can start at any time the ignition
switch is in the ON position.
²You or others can be badly burned by hot coolant
or steam from your radiator. If you see or hear
steam coming from under the hood, don't open the
hood until the radiator has had time to cool. Never
try to open a cooling system pressure cap when the
radiator is hot.
Coolant Checks
Check engine coolant (antifreeze) protection every 12
months (before the onset of freezing weather, where
applicable). If coolant is dirty or rusty in appearance, the
system should be drained, flushed and refilled with fresh
coolant. Check the front of the A/C condenser for any
accumulation of bugs, leaves, etc. If dirty, clean by gently
spraying water from a garden hose vertically down the
face of the condenser.
Check the coolant recovery bottle tubing for brittle rub-
ber, cracking, tears, cuts and tightness of the connection
at the bottle and radiator. Inspect the entire system for
leaks.
Cooling System Ð Drain, Flush and Refill
At the intervals shown on the Maintenance Schedules,
the system should be drained, flushed and refilled.
If the solution is dirty or contains a considerable amount
of sediment, clean and flush with a reliable cooling
360 MAINTAINING YOUR VEHICLE

Adding Coolant
Your vehicle has been built with an improved engine
coolant that allows extended maintenance intervals. This
coolant can be used up to 5 Years or 100,000 miles before
replacement. To prevent reducing this extended mainte-
nance period, it is important that you use the same
coolant throughout the life of your vehicle. Please review
these recommendations for using Hybrid Organic Addi-
tive Technology (HOAT) coolant.
When adding coolant, a minimum solution of 50% rec-
ommended Mopar Antifreeze/ Coolant 5 Year/100,000
Mile Formula HOAT (Hybrid Organic Additive Technol-
ogy), or equivalent, in water should be used. Use higher
concentrations (not to exceed 70%) if temperatures below
234ÉF (237ÉC ) are anticipated.
Use only high purity water such as distilled or deionized
water when mixing the water/engine coolant solution.The use of lower quality water will reduce the amount of
corrosion protection in the engine cooling system.
Please note that it is the owner's responsibility to main-
tain the proper level of protection against freezing ac-
cording to the temperatures occurring in the area where
the vehicle is operated.
NOTE:Mixing coolant types will decrease the life of the
engine coolant and will require more frequent coolant
changes.
Cooling System Pressure Cap
The cap must be fully tightened to prevent loss of
coolant, and to insure that coolant will return to the
radiator from the coolant recovery bottle.
The cap should be inspected and cleaned if there is any
accumulation of foreign material on the sealing surfaces.
362 MAINTAINING YOUR VEHICLE

WARNING!
²The warning words ªDO NOT OPEN HOTº on
the cooling system pressure cap are a safety pre-
caution. Never add coolant when the engine is
overheated. Do not loosen or remove the cap to
cool an overheated engine. Heat causes pressure to
build up in the cooling system. To prevent scald-
ing or injury, do not remove the pressure cap while
the system is hot or under pressure.
²Do not use a pressure cap other than the one
specified for your vehicle. Personal injury or en-
gine damage may result.
Disposal of Used Engine Coolant
Used ethylene glycol based engine coolant is a regulated
substance requiring proper disposal. Check with your
local authorities to determine the disposal rules for yourcommunity. To prevent ingestion by animals or children
do not store ethylene glycol based engine coolant in open
containers or allow it to remain in puddles on the
ground. If ingested by a child, contact a physician
immediately. Clean up any ground spills immediately.
Coolant Level
The coolant bottle provides a quick visual method for
determining that the coolant level is adequate. With the
engine idling and warm to normal operating tempera-
ture, the level of the coolant in the bottle should be
between the ªADDº and ªFULLº lines, shown on the
bottle.
The radiator normally remains completely full, so there is
no need to remove the radiator cap unless checking for
coolant freeze point or replacing coolant. Advise your
service attendant of this. As long as the engine operating
temperature is satisfactory, the coolant bottle need only
be checked once a month.
MAINTAINING YOUR VEHICLE 363
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Schedule ªBº
Follow schedule ªBº if you usually operate your vehicle
under one or more of the following conditions.
²Day or night temperatures are below 32 ÉF (0 ÉC).
²Stop and go driving.
²Extensive engine idling.
²Driving in dusty conditions.
²Short trips of less than 10 miles (16 km).
²More than 50% of your driving is at sustained high
speeds during hot weather, above 90 ÉF (32 ÉC).
²Trailer towing.
²Taxi, police, or delivery service (commercial service).
²Off-road or desert operation.
²Heavy Loading
NOTE:IfANYof these apply to you then change your
engine oil every 3,000 miles (5 000 km) or 3 months,
whichever comes first and follow schedule ªBº of the
9Maintenance Schedules9section of this manual.
NOTE:IfANYof these apply to you then change your
coolant every 102,000 miles (170 000 km) or 60 months,
whichever comes first and follow schedule ªBº of the
9Maintenance Schedules9section of this manual.
SCHEDULE ªBº 395
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Fluid Level Checks
Automatic Transaxle.................... 369
Fluids................................ 388
Fluids, Lubricants and Genuine Parts.......... 388
Fog Lights.......................121,177,383
Folding Rear Seat........................ 114
Folding Rear Seat (Sedan).................. 114
Four Wheel Drive....................... 246
Systems............................. 246
Four Wheel Drive Operation................ 246
Freeing A Stuck Vehicle................... 335
Fuel..............................303,388
Adding............................. 307
Additives............................ 305
Capacity............................ 388
Clean Air............................ 303
Filler Cap (Gas Cap).................... 307
Filter............................... 353
Gasoline............................ 303Gauge.............................. 169
Hoses.............................. 365
Light............................... 170
Octane Rating........................ 303
Requirements......................... 303
System Hoses......................... 365
Tank Capacity........................ 388
Fueling............................... 307
Fuses................................ 376
Garage Door Opener (HomeLinkt) ........... 130
Gas Cap (Fuel Filler Cap)............307,308,344
Gasoline, Clean Air...................... 303
Gasoline (Fuel).......................303,388
Gasoline, Reformulated................... 304
Gauges
Coolant Temperature.................... 173
Fuel................................ 169
Odometer........................... 176
INDEX 427
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Signals, Turn........................... 384
Slippery Surfaces, Driving On............... 334
Snow Tires............................ 302
Spare Tire.......................289,290,327
Spark Plugs............................ 351
Specifications
Oil ................................ 349
Speed Control (Cruise Control)...........127,174
Speedometer........................... 170
Starting............................... 237
Automatic Transmission................. 237
Engine Fails to Start.................... 239
Manual Transmission................... 238
Starting Procedures...................... 237
Steering
Power...........................276,357
Tilt Column.......................... 126
Wheel Lock........................... 17Steering Wheel Mounted Sound
System Controls......................... 221
Storage............................... 380
Stuck, Freeing.......................... 335
Sun Roof.............................. 146
Sun Visor Extension....................... 82
Supplemental Restraint System - Airbag........ 49
Synthetic Engine Oil...................... 350
System, Navigation...................... 213
Tachometer............................ 171
Taillights.............................. 384
Temperature Gauge, Engine Coolant.......173,325
Tether Anchor, Child Restraint............... 64
Theft Alarm (Security Alarm)................ 30
Theft System (Security Alarm)............... 30
Tie Down Hooks, Cargo................... 156
Tilt Steering Column..................... 126
INDEX 435
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