Question Hi Marc, I'm going to change the oil cooler lines on my 95 Chevy Tahoe 5.7 gas 4wd. My problem is with the connectors on the bottom. I'm not familiar with this type of connector, it has no clip like I've seen in some pictures. Need to know how to remove and install. Have new parts.
Thanks Mike
AnswerMike
hopefully this helps buddy Go to collisionrepair advice.com if you have any other probelems.
Thanks Marc
ENGINE OIL COOLER LINE REPLACEMENT
The optional oil cooler is either an integral pan of the radiator or a separate unit placed in front of the radiator. Cooler lines and hoses are serviceable.
OIL COOLER SYSTEM SERVICE
If foreign material has entered the oil cooler or if the engine has been damaged internally, flush the oil cooler, connecting lines, and filter adapter assembly in the following manner.
Engine Oil Cooler (5.0/5.7L Engines Without Heavy Duty Cooling)
Engine Oil Cooler (5.7L Engine With Heavy Duty Cooling)
Auxiliary Engine Oil Cooler Assembly
REMOVE OR DISCONNECT
Set the parking brake.
Oil cooler lines from the connector.
Removing Oil Cooler Line From Connector
Using a small pick-type tool and your thumb (A in image), grasp the connector end and pull the clip from the connector (B in image). This releases the cooler line from the connector.
NOTICE: Do not use more than 690 kPa (100 psi) air to clean the cooler and lines. Exceeding 690 kPa (100 psi) could damage the cooler or lines.
Using clean solvent and compressed air, back-flush the oil cooler and lines.
Using compressed air, remove the cleaning solvent.
Flush the system using the same type of oil normally circulated through the cooler.
Bolt or nut from bracket or clamp.
Oil filter and discard.
Oil cooler lines from the clip or strap.
Oil cooler lines from the oil cooler at fitting.
CLEAN
All components in a suitable solvent and dry with compressed air.
INSPECT
All fittings, connectors, and cooler lines for damage or distortion.
INSTALL OR CONNECT
NOTICE: Do not use more than 690 kPa (100 psi) air to clean the cooler and lines. Exceeding 690 kPa (100 psi) could damage the cooler or lines.
Installing Oil Cooler Line Clip Into Connector
Using your thumb and forefinger, insert the connector clip into one of the three recesses in the connector (C in image). With one end of the clip engaged in the connector slot, use your thumb and rotate the clip around the connector until it snaps into place (D and E in image).
NOTICE: Make sure the connector clip engages all three slots in the connector. Failure to properly install the connector clip could cause the oil cooler line to come loose and cause damage to the engine.
Oil cooler lines to the oil cooler. TIGHTEN
Oil cooler line fittings to 23 Nm (17 lbs. ft.).
Oil cooler lines to the clip or strap. TIGHTEN
Bolt to 6 Nm (53 lbs. in.).
Bolt or nut to bracket or clamp. TIGHTEN
Bolt to 9 Nm (80 lbs. in.).
Nut to 13 Nm (115 lbs. in.).
New oil filter.
Test the flow of oil through the cooler before connecting the lines.
If the flow is not restricted, connect the oil lines to the connector.
A distinct "snap" should be heard when assembling the oil cooler line to the quick connector. The oil cooler line must be fully inserted into the quick connector. Check this by applying a forceful pull to the fitting.
If the flow is restricted, replace the radiator.
Run the engine and check for leaks.
© 2009 ALLDATA LLC. All rights reserved.
Terms of Use
