Ats or cts sensor

Automatic Transmission
The Vehicle Speed Sensor (VSS) is located on the right side of the transmission near the output shaft.

https://www.autozone.com/repairguides/CTS-2006-2007-CTS-V-2005-2007-DTS-2006-2007/Component-Locations/Vehicle-Speed-Sensor/_/P-0996b43f80cb19d3

Bank one is on the drivers side.
Repair Guides Component Locations Camshaft Position Sensor AutoZone com

COOLANT SENSOR..or cts,,The CTS is located near the thermostat housing and is identified by a two-way gray connector. The temp sending unit (the one that operates the dash gauge) is located next to it and has a single brown connector. Good Luck!

On the gas pedal assy

Not the problem

Move on to other issues

Need a scan tool to check modules

The sensor/sender is easily replaced. It is located on the horizontal surface of the "V" of the block at the rear of the intake manifold on the driver's side. R&R requires a deep-socket about 1 1/16" or so.

Crankshaft sensor is Located on the side of the block by the oil filter,

Hope this tip helps.

r/
David

well there are 2 coolant sensors,,,one is the coolant level sensor which is internal to the coolant resivor,,but i think you are talking about the infamous engine coolant temp sensor,,,,ok pop your hood you will see the cam cover that says saturn on it,,,,thats the top of the engine,,,ok,,,then on the lower right side of that you will see the upper radiator hose,,,and the EGR valve,,,,now inbetween the egr valve and upper rad hose is where the coolant temp sensor is,, its just below them,,there is a little wiring harness with a yellow and a black wire going to it,,,,it actually screws into the lower side of the cylinder head,,,,just squeze the wiring connector at the 2 thicker spots and pull it straight off then take the coolant cap off the resivor,,to relases pressure and put it back on,providing the car is not hot,,,,the sensor is actually a 13mm or 14mm socket that removes the sensor,,,,,they usually crack and leak into the harness so check the harness for corrosion,,,,be like green/blue on terminals,,if so youre gonna have to wire in a new connector,,,,no big deal ,, normal s-series issue,,,do not use aftermarket junk like autozone as these do not read correctly from the start youre gonna have to shell out the money at the saturn dealer for the good stuff ,,like $18 for the sensoe and $37 for the connector but it comes with the 2 **** connectors you need to wire it in,,,so if you remove the sensor just put the new one in snug but dont break it off,,,,top off coolant,,,,cut the 2 wires off the old connector as close to the end as possilbe. so you retain as much wire as you can,,,,,it doesnt matter which wire goes on what side but i lke to keep it the way it was the black wire on the right and the yellow on the left,,use the **** connectors,then heat shrink them and wrap them with electrical tape and youre done

Maybe this will help . although this is from a 1997 Caddy.


Cadillac DeVille Engine Coolant Temperature (ECT) Sensor Location

The Air Temperature Sensor is built into the Mass Air Flow Meter. It is located on the air intake tube, between the air filter box and the metal intake manifold, held on with 2 screws.

The Coolant Temp Sensor is located on the back side of the engine (closest to the firewall), closer to the driver side of the engine. It is close below the Csm Position Sensor, that is located on the cylinder head.

If you had problems with either, the DTC would be P-0115 for the CTS and P-0110 for the ATS.
Note that the ATS cannot be serviced alone, you would need to replace the MAF assembly.
Hope this helps

I have a 351 but they are common sensors and should be located same places. ATC is on the side or bottom of the air intake filter box. The CTS should be located on the goose-neck where your Thermostat is housed; this is comming off the intake mannafold and into the radiator.