Yes, a six cylinder engine was never available in any model year of the Pontiac Sunfire.
No
Yes, as are all the Sunfires.
2005
See stvndberryhill's answer under 1998 Pontiac Sunfire horn relays. This answer applies to all year models of Pontiac Sunfires.
Pontiac Sunfires.
All 2002 Sunfires, 2.2 and 2.4, had timing chains
all Sunfires are 4 cylinder engines, so 4.
Probably. I think that all the Sunfires had the split folding rear seatback. But don't quote me!
What is it doing? Your question is too vague
My reference web sites list the capacity for all Sunfires as 15.2 gallons US. FriPilot
it is in the front of the vehicle below the oil filter, exhaust manifold and coils
You can find quite a bit of info about Sunfires at this website http://consumerguideauto.howstuffworks.com/1995-to-2005-pontiac-sunfire-6.htm FriPilot