2003 Cadillac Deville Tapping

2003 CADILLAC DEVILLE
69,500 MILES • V8 • FWD • AUTOMATIC
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BOB-O-105
  • MEMBER
  • 1 POST
I have an 03 Deville DHS and about 3-5 minutes after startup i get a tapping noise, The car has always ran Mobil 1 5-w-30 from day 1 and has been well maintained. do you think some Marvel Mystery Oil could help?
Nov 12, 2009 at 8:54 AM
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DOCFIXIT
  • ✓ASE Certified Mechanic
  • 18,828 POSTS
  • ASE Certified Mechanic
Could not hurt I put it in everything I own. especialy if lifter tap.
Nov 12, 2009 at 3:31 PM
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