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Second gear knock V70-XC70 2000

posted by  someone claiming to be bob on  Tue Jan 4 10:20 CST 2005 [RELATED]

The nABS system runs a self test after every start, and cycles the pump briefly. It usually occurs around the 1-2 upshift point. I can't remember the exact spec but I think it occurs at 18MPH. It runs this test every time the car is started, only once. Then knock you hear is the pump self test.






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New Second gear knock [V70-XC70][2000]
posted by  someone claiming to be Phileep  on Mon Jan 3 16:55 CST 2005 >


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