1998 Cadillac SLS

Tiny
LARRYC3
  • MEMBER
  • 1998 CADILLAC SEVILLE
  • V8
  • FWD
  • AUTOMATIC
  • 99,600 MILES
Apparently when I bought it the O2 sensor and speed sensor just needed to be replaced as well as a new battery. Well the battery is dead it just sat for two days. Also it starts long not necessarily hard just long. Could it be that it just needs a new, bigger battery about 880cca and as far as the sensors go the speed needs replacing cuz the speedometer doesnt work right away. Plz help
Saturday, January 22nd, 2011 AT 3:59 PM

1 Reply

Tiny
FACTORYJACK
  • MECHANIC
  • 4,159 POSTS
A bigger battery may not allow it to start any faster, unless the cranking rpms are low. If it cranks normal, but extended, check for a leaking fuel pressure regulator. I am suspicious that you are told the speed sensor is faulty, I have not seen one fail in a decade or so. If the vehicle is driving and shifting fine up to the point that the speedo starts working, it may be an issue with the cluster. If the battery is going dead in a few day, it may have a high parasitic drain that is helping it discharge.
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Friday, February 4th, 2011 AT 4:46 AM

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