The 1999 Saturn engine uses dexcool type coolant. This coolant is different form other types and cannot me mixed with another type.
1993-2000 ide go with 1994-1999 somewhere in there would work nicest
dexron6 are type transmission oil for Saturn 2001 serial sc2
On my 97 SC1, the vent is a tube between battery and firewall. Not sure if the same on the SC2.
Dextron III fluid is the only requirement
Saturn is a good car except for seat belts are designed improperly. They can choke you, if you don't adjust them.
Have it scanned to determine problem
The PCM is inside the dashboard, to the right of the glove box.
1.9 liter dual voerhead cam 16 valve
It would, if you changed out the trans and the ecm/tcm. The SL2 SC2 transmissions have a different higher reving gear ratio.
With a test light.
Don't complain; if the engine isn't leaking coolant that just means everything is sealed up properly.
The Saturn SC2 automobile was a part of the Saturn S series automobiles that was around from 1990 up until 2002. The SC2 looked similar to a Nissan 240 SX and the model was manufactured around 1994-1995.