Alright, so I've only owned this car for a few weeks - so I don't know a lot of its past or anything.
Today I noticed that there was a burning smell coming from the engine bay, so I popped the hood while the car was still running. There was consistent smoke coming from the front of the engine. I have circled the area where it was smoking... and it looks like the previous owner had put tinfoil in the area around the tubes (exhaust manifold? idk what it is). Side Note: Does anyone have a good diagram of all the parts in the L67?
Also - I've noticed a steady decrease in gas mileage since I've owned the vehicle. I started out at 24 mpg, and now am down to 19 mpg. Any ideas of what to replace/check to bring that back up again?
Any help with both issues would be greatly appreciated... my spring break is next week and I'm going to try to tackle some of these issues.
Thanks!