• Tiny
  • D_man1960
  • 1998 Cadillac SLS

Engine Performance problem
1998 Cadillac SLS V8 Front Wheel Drive Automatic 155000 miles

When I start my car it sometimes runs rough. Not all the time, though more often than not. When it's in park it seems to idle better. When at a stop sign in drive, it will be fine then sputter like a murmer then go back to normal, then sputter again. When driving on the freeway, it seems like it's not getting enough fuel but when I step on the gas it seems fine. When I put it in neutral, it runs like a champ!

Someone mentioned to me it could be clogged throttle body, or even plugs, wires. I changed the fuel filter thinking it might be the problem, but it wasn't. Any ideas? How do I run a code check?

Friday, February 6th, 2009 AT 11:15 AM

1 Answer

  • Tiny
  • factoryjack
  • Expert
  • 4,263 posts

Sounds like a secondary miss due to arcing wires/cracked or worn plugs. If the wires still have cylinder #'s on them they are original. Check the coil terminals that the plug wires connect to, any sign of corrosion, replace the coil for that pair as well.

Was this
Friday, February 6th, 2009 AT 11:02 PM

Please login or register to post a reply.

Similar Questions