Where is the ecm on a Pontiac Montana?

The PCM (Powertrain Control Module) on a Pontiac Montana is located under the hood, typically near the firewall on the passenger side. However, the exact location can vary slightly depending on the year and engine of your specific Montana. It's often a relatively large, rectangular black box with numerous connectors.

To be certain, you should:

* Consult your owner's manual: This is the best resource for the precise location in your vehicle.

* Look for a diagram under the hood: Many vehicles have diagrams showing the location of major components.

* Search online: A quick online search for "[your Pontiac Montana year and engine] PCM location" will likely yield images and forum posts showing the exact spot.

Remember that working on the PCM can be complex. If you're unsure about anything, it's best to consult a qualified mechanic.