* Low or No Fluid: Before investigating leaks, check the fluid level. If it's low, you might have a leak, but also consider a leak that's already depleted the fluid. Top it off (using the correct Dexron-compatible fluid) and then look for leaks.
* Leaking Hoses: These are rubber and age and deteriorate over time, becoming cracked or brittle. Inspect all power steering hoses carefully, paying close attention to the connections.
* Leaking Power Steering Pump: The pump itself can develop leaks around its seals or shaft. You'll often see fluid dripping from the pump's bottom or sides. This is a more significant repair.
* Leaking Pressure Hose: This hose connects the pump to the steering gear, and is often under higher pressure. Look carefully for leaks here, as a failure could lead to significant loss of steering ability.
* Leaking Steering Gear/Rack and Pinion: Leaks from the steering gear are often seen as drips near the steering linkage. This is a more expensive repair.
* Leaking Fittings/Connectors: The connections between hoses and the pump, gear, and cooler can loosen or corrode, resulting in leaks.
* Damaged Power Steering Cooler (if equipped): If your Blazer has a separate power steering cooler, check its lines and the cooler itself for leaks.
* Cracked Reservoir: The reservoir itself can crack, leading to leakage.
To find the leak:
1. Start with a visual inspection: Carefully examine all components of the power steering system, looking for wet spots, fluid dripping, or evidence of leaks. A clean engine bay helps immensely.
2. Use a pressure washer (carefully): After topping off the fluid, use a low-pressure washer to rinse off the engine bay. This will help remove any dirt or grime that might be obscuring leaks. Let it dry and then look for new drips.
3. Use a UV dye and inspection lamp: This is a more advanced method, but adding a UV dye to the power steering fluid will help locate leaks under UV light.
Important Considerations:
* Safety: Power steering fluid is slippery and can create a hazardous driving condition. Don't drive the vehicle if you suspect a significant leak.
* Professional Help: If you're not comfortable performing these checks or repairs yourself, take your Blazer to a qualified mechanic for diagnosis and repair. Ignoring a power steering fluid leak can lead to damage to the system and loss of steering control.
By systematically checking these areas, you should be able to identify the source of the leak and get your Blazer back on the road safely.
