Regal V6-3.8L VIN K (1997)
Electronic Brake Control Module: Customer Interest
A Clunk Produced When the Engine Is Running and When It's Off
A CLUNK THAT CAN BE PRODUCED BOTH WHEN THE ENGINE IS RUNNING AND WHEN IT'S OFF (1998 BUICK REGAL, 1998
OLDSMOBILE INTRIGUE)
Important: The above condition applies only to a two month production run of the 1998 Buick Regal. During this period, the splined intermediate
shafts were installed in place of the standard DOUBLE-D style shaft. These vehicles were all equipped with the early version of the splined shaft which
is prone to the clunk noise. If a Buick Regal with this condition is encountered, replace the shaft with the DOUBLE-D style that is designated in the GM
Parts Manual as original equipment.
This type of clunk is likely to be caused by the intermediate shaft. This clunk may be caused by too much clearance between the splined inner and outer
parts of the slider joint. The additional clearance allows them to knock against each other during turns.
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The correction is to replace the intermediate shaft with one built since the middle of October, 1998.
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Check the shaft's date code to assure that it is a good shaft. The code can be recognized by the fact that it's laser-etched, rather than stamped on the
end of the shaft. The shaft must have been built on or later than the 280th day of 1998 (example: "252A8"). In this example, the "282" represents
the 282nd day and the final "8" represents 1998.
