Most do - it's not visible from the driver's seat, but between the rear view mirror and windshield, glued to windshield would be this plastic (about 3x3 and a half inch thick) module, visible from the passenger side and aslo visible from outside - look closely.
And if you ever change windshields, MAKE SURE to retain that sensor module, or you may disable your windshield washer!
The '97 is OBDII. There are 4 different O2 sensors on the '97 Cadillac. http://www.airbagcrash.com
under the intake manifold
5x115 is bolt pattern for 97 Cadillac eldorado
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You have to drop the subframe
No. depending on your model, it fits 1997-1999 deville, 1995-2002 eldorado, or 1992-1997 seville.
7.6L, or until it says full on the dipstick.
Mounted on top and inside the fuel tank.
Not at all if it's been properly maintained
There are two variants of the NORTHSTAR. The base Eldorado produces 275 bph and the ETC produces 300.
The blower relay on a 1997 Cadillac Eldorado is typically located in the engine compartment's fuse box. You can find the fuse box near the driver's side near the windshield. Check the diagram on the fuse box cover for the exact location of the blower relay. If you have trouble locating it, refer to the vehicle's service manual for more detailed instructions.
where is the crankshaft angle sensor located on a 1997 cadillac deville.