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Q: timing chain noise and low oil pressure light comes on at idle. on 1999 Saab 9-5

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
always when it warms up.
(1) Answer
Check the oil level first, then have the oil pressure checked and if it's low then have the low oil pressure issue fixed. Hopefully after that the timing chain noise will go away. Avoid driving it in this condition, you will only do more damage.