1997 saab 900se - sporadic engine rattle at idle - micky62

I own a '97 saab with a 2.0 liter turbo engine. At idle a clanking sound occurs and disappears. The sound is unlike a lifter or ticking, it is a distinctive clanking, rattle of a metalic nature. The car has made these noises for 30,000+ miles. Any thoughts? My guess is perhaps a timing or balance chain guide.

Thanks,

Mike W

1997 saab 900se - sporadic engine rattle at idle - injection doc
Most likley timing chain issue, I would be very carefull about driving it as they do fail! Another possibility is if its an auto is the flex plate rattling! If it has a crack