Subject: | New Design Oil Pick Up Tube and Front Cover |
Models: | 2004 Buick Rainier |
2002-2004 Chevrolet Trailblazer |
2002-2004 GMC Envoy |
2002-2004 Oldsmobile Bravada |
with 4.2L Engine (VIN S - RPO LL8) |
During the 2004 model year, there was a design change made to the engine oil pick up tube and the front cover. The first design parts used in production for 2002, 2003 and part of 2004 model year used an O-ring type seal between the pick up tube and the front cover. The second design parts began production during the 2004 model year and use a face type seal.
Anytime the front cover or oil pick up tube are being serviced, be sure to identify which design is being serviced. The correct pick up tube must be used with its corresponding front cover or an engine failure could result.
Any vehicle requiring a new front cover must be serviced with the second design front cover, therefore, the engine oil pick up tube must be replaced at the same time.
First Design Engine Oil Pick Up Tube with O-ring seal
Second Design Engine Oil Pick Up Tube with Face seal
First Design Front Cover at Pick Up Tube Attachment Point
Second Design Front Cover at Pick Up Tube Attachment Point