2005 Cadillac CTS Oil leak

Tiny
TMARISELA
  • MEMBER
  • 2005 CADILLAC CTS
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 12,345 MILES
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
Tuesday, October 6th, 2015 AT 12:00 PM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
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.
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Tuesday, October 6th, 2015 AT 12:16 PM

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