The oil capacity of the 4.6L 32 valve Northstar in a 1997 Cadillac is 7.5 quarts.
7qts
it should
assuming it's a Northstar engine. It's in the center of the engine below the intake plenum chamber.
what solenoid are you referring to
Depends on the model
The era gap is huge when considering a 1990 Deville to a 1997, no way is it possible unless you have tons of time to make extreme modifications and LOTS of money.
It is located on the back of the engine (drivers side), on the side of the cylinder head, just above where the trans axle bolts onto the engine. It is brass with a black connector and is very tricky to access.
If it is the same as the '94 SLS Northstar, Its under the intake manifold. Sounds crazy, but true.
There are two variants of the NORTHSTAR. The base Eldorado produces 275 bph and the ETC produces 300.
On the Northstar engine, the water pump is on the RIGHT side of the engine (looking at it from the front. If you look from the left (Drivers) side fender, it's right in front of you- You'll see the water pump drive belt running off the forward camshaft.
airfilter housing 1998