Clanking noise
#31
Super Moderator
One thing I could recommend is you disconnect your battery cables for a few minutes, reconnect them and then drive a about 15 minutes, half city, and at least one period of time where you can get above 100 km/h even if for a few seconds. And see if the situation is better, worse or the same as before. It is possible a check engine light may come on (and that would help toward diagnosing the issue).
I won't disregard the idea that bad gas can cause issues with cats. I had such an issue in Mexico one time driving in a rural area where the gasoline was adulterated.
Thread
Thread Starter
Forum
Replies
Last Post
lexus-is2
IS - 2nd Gen (2006-2013)
2
06-10-13 12:10 PM