Why does my engine make a tapping sound?
2 Answers
TheSubaruGuruBoston answered 4 years ago
Probably piston slap, which diminishes after 10-20 minutes. Also could be excess valve lash gap.
TheSubaruGuruBoston answered 4 years ago
On a 95-99 2.2L might even be fuel injectors normally clicking away, but if it disappears upon warmup it's piston slap...as stated above.