Two problems related to front suspension shock absorber have been reported for the 1999 GMC Sierra. The most recently reported issues are listed below.
When vehicles engine is shut off the abs pump continues to run, until the vehicle battery goes dead, consumer has to disconnect. Cause is unknown. Please provide any further information. Mr.
Consumer states that vehicle goes into the abs mode, when the abs are not needed. Cause is unknown. Please provide any further information. Mr.