1990 Caddy Coupe deville 4.5 Engine. Car slows down on incline.Won't pull a hill. Drives well on flat surface changes gears fine
Jun 9, 2011 at 9:38 PM
power problem
MACON
- MEMBER
- 2 POSTS
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Check the exhaust system for restriction could be a clogged catalytic converter -do a backpressure test to confirm it
Jun 10, 2011 at 2:31 AM
Thank you. The auto shop told me the checked the converter and exhust muffler
Jun 10, 2011 at 6:25 AM
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