OEM 2007 Buick Lucerne Oil Pump

2007 Buick Lucerne Parts Questions & Experts Answers

• Q: How to replace the oil pump and reset the transmission adaptive pressure values on 2007 Buick Lucerne?

  A: Start by taking off the case side cover and wiring harness if needed, then take out the bolts holding the Oil Pump to Valve Body. Align the Oil Pump with the Valve Body before using a torque wrench to drive the pump onto the bolts, without pushing the torque beyond what is allowed, and tighten the Valve Body bolts to 8 n.m (70 lb in). Once the wiring harness is reinstalled, fit the case side cover back in place. Once you've installed the transaxle, make sure it is full and look for any leaks around the area. Make sure to reset the transmission adaptive pressure (TAP) values, because a scan tool will clear all previous tap values and require the ecm, pcm, or tcm to relearn them, possibly changing the transmission's performance. Finally, reset the tap values.