OEM 2001 Chevrolet Lumina Automatic Transmission Oil Cooler Line

2001 Chevrolet Lumina Parts Questions & Experts Answers

• Q: How to replace the Automatic Transmission Oil Cooler Line with threaded fittings on 2001 Chevrolet Lumina?

  A: The a/t oil cooler pipes need replacement via threaded fittings that should use double-wrapped and brazed steel pipe which fulfills gm specification 123m or its equivalent standards with double-flared ends. Raising the vehicle while supporting it with proper tools forms the first step before adding a drain pan. Start the process by disconnecting both transaxle oil cooler hoses from pipes before removing transaxle oil cooler pipe fittings at the radiator and transaxle oil cooler pipe clip bolt. Passage of transaxle oil cooler pipes must wait until completing all previous steps. Installation requires proper threads alignment to prevent leaks stemming from wrong fitting engagement. Lay down the transaxle oil cooler pipes followed by installation of the transaxle oil cooler pipe clip bolt while tightening it to 4 nm (27 inch lbs.). Install the transaxle oil cooler pipe fittings onto the radiator while tightening them to 45 nm (33 ft. Lbs.), after which attach the transaxle oil cooler hoses to the pipe ends. The fluid should be adjusted to the appropriate level but avoid filling it too much since excess will produce foaming and cause fluid loss alongside shift problems and possible damage. The last step involves reviewing the completeness of the work while also checking for any fluid leakage.