* Under the hood, near the firewall: This is the most common location. Look for a small, usually translucent, reservoir with a dipstick or markings indicating the fluid level. It might be near the master cylinder (brake fluid reservoir) or the engine's front.
* On the side of the power steering pump: Less common, but some models have the reservoir mounted directly on the power steering pump itself. This would be near the front of the engine.
To be certain, consult your owner's manual. It will have a diagram showing the exact location of all fluid reservoirs, including the power steering fluid. You can also use a vehicle-specific online repair manual or search for images online of the engine bay of your specific year and model Chevy Blazer. Entering the year, make, and model into a search engine will likely yield useful results.
