coolant needs to be added, contents of coolant recov-
ery bottle must also be protected against freezing.
•
If frequent antifreeze/coolant additions are required,
or if the level in the recovery bottle does not drop
when the engine cools, the cooling system should be
pressure tested for leaks.
•
Maintain antifreeze/coolant concentration at 50%
HOAT antifreeze/coolant (minimum) and distilled
water for proper corrosion protection of your engine
which contains aluminum components.
•
Make sure that the radiator and coolant recovery
bottle hoses are not kinked or obstructed.
•
Keep the front of the radiator clean. If your vehicle is
equipped with air conditioning, keep the front of the
condenser clean, also.
•
Do not change the thermostat for summer or winter
operation. If replacement is ever necessary, install
ONLY the correct type thermostat. Other designs may
result in unsatisfactory cooling performance, poor gas
mileage, and increased emissions.
Hoses and Vacuum/Vapor Harnesses
Inspect surfaces of hoses and nylon tubing for evidence
of heat and mechanical damage. Hard or soft spots,
brittle rubber, cracking, tears, cuts, abrasions, and exces-
sive swelling indicate deterioration of the rubber.
Pay particular attention to the hoses nearest to high heat
sources such as the exhaust manifold. Inspect hose rout-
ing to be sure hoses do not touch any heat source or
moving component that may cause heat damage or
mechanical wear.
Insure nylon tubing in these areas has not melted or
collapsed. Inspect all hose connections such as clamps
and couplings to make sure they are secure and no leaks
MAINTAINING YOUR VEHICLE
371
7
Summary of Contents for 2007 JK Wrangler
Page 2: ......
Page 8: ...8 INTRODUCTION ...
Page 10: ......
Page 188: ...INSTRUMENT PANEL AND CONTROLS 188 UNDERSTANDING YOUR INSTRUMENT PANEL ...
Page 189: ...INSTRUMENT CLUSTER UNDERSTANDING YOUR INSTRUMENT PANEL 189 4 ...
Page 246: ......
Page 292: ...292 STARTING AND OPERATING ...
Page 346: ......
Page 350: ...ENGINE COMPARTMENT 3 8L 350 MAINTAINING YOUR VEHICLE ...
Page 400: ......
Page 424: ......
Page 433: ...INDEX 10 ...
Page 451: ...NOTES ...
Page 452: ...NOTES ...
Page 453: ...NOTES ...
Page 454: ...NOTES ...
Page 455: ...NOTES ...
Page 456: ...NOTES ...