OEM 2004 Buick Regal Drive Belt

2004 Buick Regal Drive Belt Parts and Q&A

• Q: How to replace the drive belts on the supercharged 3800 engine on 2004 Buick Regal?

  A: A supercharged 3800 engine contains two drive belts: one operates the supercharger while the other powers the generator and steering pump, water pump and air conditioning compressor components that are fixed to the engine with tension-automated tensioners to support belt tension. The Drive Belt produces normal squeaking sounds during engine start or stop without affecting its lifespan although using the tensioner beyond its operational range could produce poor tension management that requires replacement of the belt. The Drive Belt replacement process starts by lifting or rotating the supercharger Drive Belt tensioner through application of a 15 mm box end wrench to its pulley nut. Then you can remove the supercharger Drive Belt. The next step requires you to utilize a 15 mm box end wrench on the pulley nut to lift or rotate the tensioner for removing the inner Drive Belt. The installation procedure requires lifting or rotating the tensioner pulley by using a 15 mm box end wrench followed by inserting the inner Drive Belt before raising or rotating the tensioner again to install the supercharger Drive Belt.