2003 Cadillac CTS oil cooler

2003 CADILLAC CTS
Avatar
CJSTEELE
  • MEMBER
  • 2 POSTS
2003 Cadillac CTS 6 cyl Two Wheel Drive Automatic

How do you replace an oil cooler on the 03 cts? Is there a way to make sure that it's bad and not the head gasket?
Sep 10, 2010 at 3:50 PM
Advertisement
Avatar
FACTORYJACK
  • ✓ASE Certified Mechanic
  • 4,159 POSTS
  • ASE Certified Mechanic
What is your symptom, oil in the cooling system?
Sep 14, 2010 at 12:33 AM
Avatar
CJSTEELE
  • MEMBER
  • 2 POSTS
Yes.
Sep 14, 2010 at 4:24 AM
Avatar
FACTORYJACK
  • ✓ASE Certified Mechanic
  • 4,159 POSTS
  • ASE Certified Mechanic
The oil cooler is in the valley, under the upper and lower intakes. About the only way I would know of testing, is to block one side, and apply compressed air to the other with it submerged in water, and check for bubbles.
Sep 14, 2010 at 11:34 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.