They are threaded, but ypu need a special socket. Also, applying heat helps to loosen it, but they are tough to remove. Just unplug connector.
crank or cam sensor...did you already figure it out?
the O2 Sensor Should be on top of your exhaust manifold
wHereis the abs wheel speed sensor located on 1998 Oldsmobile bravadaI
how do you get to it
How to change a timing chain in a 1998 Oldsmobile delta 88
To replace the engine coolant temperature sensor on a 1998 Oldsmobile Achieva, first, ensure the engine is cool and disconnect the negative battery cable. Locate the sensor, which is typically found near the thermostat housing or cylinder head. Unplug the electrical connector, remove the old sensor using a socket or wrench, and install the new sensor after applying a small amount of thread sealant if required. Finally, reconnect the electrical connector and the battery cable, and check for leaks or any issues.
Where is the transmission fluid temperature sensor on a 1998 Honda accord and how do you replace it?"
On front cover of engine by crankshaft pulley.
its located under the reserve tank...and if that is not working and you are for sure the you will have to replace the whole tank by dealer or maybe find on-line somewhere!
To replace the throttle position sensor (TPS) on a 1998 Oldsmobile Cutlass, first disconnect the negative battery terminal to ensure safety. Locate the TPS on the throttle body, disconnect the electrical connector, and remove the mounting screws holding the sensor in place. Replace it with the new TPS, secure it with the screws, reconnect the electrical connector, and finally, reconnect the battery terminal. After installation, it may be necessary to reset the vehicle’s computer by disconnecting the battery for a few minutes.
The 1998 Oldsmobile Intrigue throttle position sensor is held in place with two retaining screws. Remove the retaining screws and the wiring harness. Reverse the process to install the new throttle position sensor.
1998 olds aurora altenator replcemnt