To be sure, you should:
* Consult your owner's manual: This is the best source for the exact location of components on your specific vehicle.
* Look at a diagram: Online parts diagrams for your year and model Ranger (using the engine size as a search term) will show a clear illustration.
* Search for pictures online: Searching for "1985 Ford Ranger smog pump location" along with your engine size (e.g., "2.8L") on image search sites might yield helpful results.
Be aware that the smog pump might be missing if someone has removed it in the past.