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1999 Cadillac STS DTC repair procedure

Tiny
FIRSTSTS
  • MEMBER
  • 1999 CADILLAC STS
  • 4.6L
  • V8
  • AUTOMATIC
  • 247,000 MILES
Check engine light on. Car will not shift out of second gear. Car stalls on heavy acceleration, restarts quickly. DTC's P0102, replaced MAF sensor, code reoccurs.
P0753, P0758, P1645, P1860 are the remaining codes. Anything come to mind?
Saturday, March 15th, 2014 AT 11:36 PM

3 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Trans is in limp mode have a trans guy scan this and give an opinon
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Sunday, March 16th, 2014 AT 8:09 AM
Tiny
FIRSTSTS
  • MEMBER
  • 2 POSTS
Thanks for the reply. I have been told that a tranny flush with filter change may help. I have also been told that because of the variety of codes that the ECM may have to be replaced.
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Monday, March 17th, 2014 AT 6:17 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
One thing I forgot have your battery checked for condition including load test. A bad or poor battery will send multiple codes an dno the ecm isn't normally a fault.
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Tuesday, March 18th, 2014 AT 6:06 AM

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