Should be two front and rear of engine
there is one before and one after the catalytic converter.
yes.
The 2000 Cadillac DeVille typically has four oxygen (O2) sensors. There are two upstream (pre-catalytic converter) sensors and two downstream (post-catalytic converter) sensors for each of the vehicle's two catalytic converters. These sensors help monitor the exhaust gases to ensure optimal engine performance and emissions control.
need vacuum diagrams(engine)for 1978 cadillac deville
It is probably your egr valve that needs replaced!
4.5L V8
The amount of horsepower for a 1995 Cadillac DeVille will vary depending on the engine type. The base engine on the car has 200 horsepower.
The 1992 Cadillac Deville came stock with a 4.9L, V-8 engine with 200 HP.
A car with 4 wheels and an engine.
1990 Cadillac 4.5 L Engine Cooling Diagram
one