Rattling noise from engine
hot and cold engine.
all the time, or only some times, when?
parked or moving or both,
1.8L is this the GM ECOtec engine?
belt driven
X18XE1 ???????????????
or
N18XFF (LFH) (VVT engine,, find out first)
chasing engine types on daewoo world wide is mind blowing, waste.
to ask any engine question find out EXACTLY which engine
it has a name/number not just 1.8L they used many world wide
you never stated country either, so more guessing. by me.....
generic answer,(will be too short)
what is odometer mileage, do you get it serviced, at 60k miles and change oil often? 100k on engine 300k, we ponder this.........
Ill answer for inside engine, but outside is first. ill skip the outside test.
1: oil levels good.
2: correct 10w-30 oil for summer>?
3: if engine has cam chain its got problems. (guide bad, or tensioner)
4: if cam belt its shreaded. bad news.
5: lifter noise, if HLA type will gum up with long oil changes, stop doing that. if true.
6: or worse. noise is almost bad news. but there are exections.