The optional oil cooler is either an integral part of the radiator or
this is a separate unit placed in front of the radiator. The cooler lines
and hoses are serviceable.
- Install the oil filter.
- Install the retaining clip into the connector fittings. Do not
reuse the existing retaining clips removed from the cooler line connector
fittings. The retaining clips being put into the cooler line connector
fittings must be new.
- Using your thumb and forefinger,
insert a new retaining clip into one of the three connector fitting recesses.
Make sure the retaining clip engages all three slots in the connector
fittings. Failure to properly install the connector clips could cause
the cooler lines to come loose and cause damage to the engine.
- With one end of the retaining
clip engaged in the connector fitting slot, use your thumb to rotate the retaining
clip around the connector fittings, until it snaps into place.
- Do not install the new
retaining ring onto the fitting by pushing the retaining ring.
- Ensure that the three
retaining ring ears are seen from inside the fitting and that the retaining
ring moves freely in the fitting slots.
- Install the new retaining ring into the remaining quick connect
fittings.
- Install the cooler lines
to the vehicle. Ensure the cooler line being installed has a plastic cap
on each end that connects to the quick connect fitting. If no plastic cap
exists, or the plastic cap is damaged, obtain a new cap and position on
to the cooler line prior to the cooler line installation.
• | Before connecting the lines, test the oil flow through the cooler. |
• | If oil flow restriction is not present, connect the oil lines
to the connector fitting. |
- Install the cooler line
into the quick connect fitting.
- Insert the cooler line end into the quick connect fitting until
a click is either heard or felt.
- Do not use the plastic
cap on the cooler line in order to install the cooler line into the fitting.
- Pull back sharply on the cooler line in order to ensure that the
cooler line is fastened into the quick connect fitting.
- Position (snap) the plastic
cap onto the fitting. Do not manually depress the retaining ring when installing
the plastic cap onto the quick connect fitting.
- Ensure that the plastic cap is fully seated against the fitting.
- Ensure that no gap is
present between the cap and the fitting.
- Ensure that the yellow
identification band on the tube is hidden within the quick connect fitting.
A hidden yellow identification band indicates proper joint seating.
- Do not install the cooler
line end into the fitting incorrectly.
- If you cannot position the plastic cap against the fitting, remove
the retaining ring from the quick connect fitting of the cooler line. Check
the retaining ring and the tube end in order to ensure neither is bent.
Replace the cooler line or the retaining ring if necessary.
- Install the cooler line into the quick connect fitting again in
order to install the remaining cooler lines into the remaining quick connect
fittings.
Notice: Use the correct fastener in the correct location. Replacement fasteners
must be the correct part number for that application. Fasteners requiring
replacement or fasteners requiring the use of thread locking compound or sealant
are identified in the service procedure. Do not use paints, lubricants, or
corrosion inhibitors on fasteners or fastener joint surfaces unless specified.
These coatings affect fastener torque and joint clamping force and may damage
the fastener. Use the correct tightening sequence and specifications when
installing fasteners in order to avoid damage to parts and systems.
- For
the 4.3L, install the oil cooler lines to the oil cooler fittings.
Tighten
Tighten the oil cooler fittings to 24 N·m (18 lb ft).
- For the 5.0L and the 5.7L,
install the oil cooler lines to the oil cooler fittings.
Tighten
Tighten the oil cooler fittings to 24 N·m (18 lb ft).
- For the 7.4L, install
the oil cooler lines to the oil cooler fittings.
Tighten
Tighten the oil cooler fittings to 24 N·m (18 lb ft).
- Install the oil cooler lines to the clip.
- Install the bolt to the clip.
Tighten
Tighten the bolt to 6 N·m (53 lb in).
- For diesel engines, install
the oil cooler lines to the oil cooler fittings.
Tighten
Tighten the oil cooler fittings to 24 N·m (18 lb ft).
- Install the oil cooler lines to the clip.
- Install the bolt to the clip.
Tighten
Tighten the bolt to 6 N·m (53 lb in).
- Tighten the bolt and the clamp to the bracket.
Tighten
Tighten the bolt to 9 N·m (80 lb in).
- Run the engine. Check the cooling system for leaks.