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What is code po449 on 1999 olds. silhouette - 1999 Oldsmobile Silhouette

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How to reset check engine light on 2000 olds silhouette


Use a code reader or disconnect the battery NEGATIVE (not the positive!) cable for 5 min's. The best way is the code reader as you will loose all learned programming in the engine control computer and this can cause idle problems. Autozone will do this for you free.

Dec 16, 2016 | 2000 Oldsmobile Silhouette

3 Answers

How do i know which alternator to get for 1999 olds silhouette ( besides pulling it out first)? Parts guy says there are two casing sizes.


You will need to turn yours in, at the parts store for a core,so just take your old one in, and they will match it up

Sep 23, 2010 | 1999 Oldsmobile Silhouette

2 Answers

No start


I have the same issue with my 2002 Silhouette mini van! As soon as the weather got warmer, issues starting- did you get any answers???

Nov 28, 2009 | 2002 Oldsmobile Silhouette

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Service engine soon light is on .


get a code # from code scanner and let me know and will assist further if can. autozone will scan for free.

Nov 23, 2008 | 1992 Oldsmobile Silhouette

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