Inside the floor shift console. Should have an access panel on the right side of console that can be removed to gain access to ECM.
It is part of the fuel pump module inside the fuel tank. I think the only answer is to replace the entire unit.
Replace the fuel filter and have the ignition module checked.
This sounds like your wheel hubs need replaced. These are where the sensors for ABS and Traction control are located. I'm very surprised a dealer would not be able to find this. It is possible another sensor is bad, but this is the same problem I had with my 2001 Alero. If you have service engine light on, trac. off light and the ABS light on the same time, you may be able to get it fixed my reprogramming the power control module (with updated software calibration). Mine was fixed for free at a dealer under a recall campaign when GM called me yesterday.
if you have the 2.2 liter ecotec engine, they are located right on top of the engine, they are located under the top black piece that says ecotec on it.
All O2 sensors all threaded into the exhaust system at various points.
the body control mod. is located on pass. side under dash behind glove box
Under coils
top right rear of engine.
The ABS control module for a 2001 Oldsmobile Alero is typically located on the driver's side, near the engine compartment, mounted on the firewall. It can often be found near the master cylinder and brake booster assembly. For easier access, you may need to remove some components or covers in the area. Always refer to a service manual for specific instructions and safety precautions.
behind the rear window under the trim on the passenger side
Usually part of the switch (module)
The button just behind the stick shift on the center consel.
The ignition control module on a 2001 Oldsmobile Alero is typically located on the engine, mounted on the ignition coil assembly. It is usually found near the front of the engine, close to the intake manifold. To access it, you may need to remove the engine cover and disconnect the electrical connectors. Always refer to a repair manual for specific instructions and safety precautions.
its under the dash and its a 3 by 3 box
it may be the airbag module. on the 2003, the module is located under the passenger seat. im not sure where it is on other years
The ABS control module on a 2000 Oldsmobile Alero is typically located near the brake master cylinder, mounted on the driver's side of the engine compartment. It's often found on or near the ABS pump assembly, which is usually mounted on the firewall. To access it, you may need to remove some components or covers for better visibility and reach. Always consult the vehicle's service manual for specific instructions and safety precautions.
Here is a list from simple to terrible, good luck. Spark plug, Plug wire, Ignition coil, fuel injector, electronic control module, valve seal, head gasket, valve. First three are simple repairs after that prepare to spend a fortune.