The 4 cylinder Saturn engines have a small hole in the camshaft sprocket(s) which can align with small holes in the head. When the crankshaft is at #1TDC, the camshafts and the crankshaft should all be properly aligned for assembly.
2002 L-series used a belt.
All 1991-2002 Saturn S-series cars have a timing chain. The Ecotec 2.2 and 2.4 L engines also have a chain.BUT!!!The V6 engines all have timing BELTS.
Chain
The DOHC SL2 has a timing chain.
The first model year for the Saturn Ion was 2003. It uses a GM Ecotec engine that has a chain cam drive just like the original S series Saturns produced until 2002.
All Saturn 4 cylinder engines have an internal timing chain. All Saturn V6 engines have a timing belt.
The wiring diagram for a 2002 Saturn S series can be found in a Chilton or Haynes repair manual. You can pick one up at an auto supply store.
That would be never. All s-series have timing chains. (chain will stretch and get noisy if car oil not checked and changed on regular basis)
no.... The Saturn Sc2 (in all years of production) has a timing chain......much better in my opinion.
There is no mass air flow sensor on the Saturn S-series.
Saturn made more than one car in 2000 so you will need to be more specific! The s-series motor will not fit in an l series car though if that is what you are asking.
chain, they do not require any maintence.