I had a 1999 Chevrolet Lumina with a 3.1 liter engine and the average I drove was 29 miles per gallon. I have never encountered a way to improve getting better mileage. It just really depends how a person drives.
yes
Hard starting, loss of power, excess fuel consumption, check engine light, and a blowing sound under heavy acceleration.
behind the engine
depends on the engine size and the transmission type.
There is no engine block drain plug on a 1996 Chevy Lumina. You drain from the radiator using the plastic plug at the bottom.
Having the diagram of the engine to the car being driven can come in handy. A person can find the 1997 Chevy Lumina Engine diagram in the maintenance manual.
yes if its the not the DOHC from the Lumina Z34
The knock sensor, in your 1997 Chevrolet Lumina, can be found on the front of the engine. The knock sensor is near the top of the engine.
The 99 Buick Century 231 engine will fit into a 96 Chevy lumina with a little fabrication.
under the engine
Freeze plugs in a 96 Lumina are located at several places on the engine block. They are designed to expand and burst in a freeze instead of the engine being damaged.
No, Chevy Lumina Z34 ever came with a 3.7L engine. So probably not.....