Miss feels like tire out of balance.

1991 CADILLAC DEVILLE
92,850 MILES
Avatar
CHUBARE
  • MEMBER
  • 1 POST
Have 91 Cad Dev 4.9 L V8 Replaced plugs, plugs wires, rotor, distributor cap. As car warms up developes sames miss while light acceleration. Help? Car was garaged kept for 5 years until 2 years ago. Runs great, miss really only felt with light acceleration after warm up.
Nov 8, 2011 at 3:01 AM
Advertisement
Avatar
ASEMASTER6371
  • ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
big issues with injectors with that motor. I would have them cleaned as they may be varnished up from sitting.

Roy
Nov 8, 2011 at 4:41 AM
Avatar
CADIEMAN
  • ASE Certified Mechanic
  • 3,544 POSTS
  • ASE Certified Mechanic
youll need to scope the engine to find witch cylinder it is.try removing the plug wires one at a time.when you remove the wire from the distibuter the engine will slow and pick back up when you reattach it.if the cylinder is bad theyll be no change in the engine.you will need to wear rubber gloves to do this.
Nov 8, 2011 at 5:43 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.