2002 caddi north star engine knock

UNIFSRN

MEMBER
2002 CADILLAC DEVILLE

My 2002 caddi, north star engine has a knock when it is cold-dealer says $600.00 will make it go away-something about decarbonize engine, there such a thing?

thank u for any input

Wednesday, October 17th, 2007 AT 7:18 PM

1 Reply

BUZZSAW

MECHANIC
1,198 POSTS

Yes let them do it

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2002 caddi north star engine knock

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