2005 Cadillac CTS Oil leak

2005 CADILLAC CTS
12,345 MILES • 6 CYL • 2WD • AUTOMATIC
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TMARISELA
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  • 1 POST
My Cadillac is leaking oil n no visible sign where the leak is and I have low gas power it takes time to catch speed I replaced both Cadillac converters and all 6 coils I have to put in a quart of oil every month I need help because mechanics tell me other problems I'm waiting too much money n time please reply
Oct 6, 2015 at 12:00 PM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
it cold be a head gasket leak if it shows no leakage outside, i'm sure it's not a cracked block or anything like that. It also depends on how many miles are between when you add oil. if it's a thousand miles don't worry about it. there is a tsb on debris entering due to air cleaner not sealed but it's to late for that on your car due to age.the only other way would be to do a leakdown test on each cylinder see if it's coming out through valve seals or piston rings.
Oct 6, 2015 at 12:16 PM
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