* Power Steering Fluid Level and Condition: This is the most common and easiest to check first. Low fluid is a major culprit. However, even if the level seems OK, *dirty* or contaminated fluid can cause intermittent sticking or difficulty. Check the level and the fluid's color and clarity. Dark brown or burnt fluid needs replacing.
* Power Steering Pump: A failing power steering pump can cause intermittent problems. As the pump weakens, it might struggle to provide enough pressure, leading to stiff steering, especially under load (turning at low speeds or when the engine is cold). The problem may temporarily improve as the pump warms up, only to return later. Listen for unusual whining or groaning noises from the pump area.
* Power Steering Pressure Hose(s): A hose that's collapsing internally, especially when under pressure, will cause intermittent steering difficulty. The problem might improve as the hose cools or the pressure drops. Look for bulges, cracks, or leaks in the hoses.
* Power Steering Rack and Pinion: This is the more serious possibility. Worn rack and pinion components can cause stiffness and binding, particularly if there's internal damage or debris. Intermittent problems might be caused by a build-up of pressure that eventually overcomes the sticking point, only for it to recur. This is more likely to be accompanied by knocking or clunking sounds from the steering system.
* Loose or Damaged Belt: The power steering pump is driven by a belt. A loose or worn belt can slip intermittently, reducing the pump's ability to assist steering.
* Electrical Issues (Less Likely): While less common in this specific system, a problem with the power steering's electrical components (if it has any electrically assisted parts, which is less likely on a 1996 model) could lead to intermittent failure.
Troubleshooting Steps:
1. Check the power steering fluid: This is the simplest and cheapest check. Add fluid if low, but if the fluid is dirty, plan on flushing and replacing it.
2. Inspect the power steering belt: Check for wear, cracks, or slippage.
3. Listen for noises: Whining, groaning, or knocking sounds from the steering system can pinpoint the problem area.
4. Examine the hoses: Look for bulges, cracks, or leaks.
5. If the problem persists: It's best to have a qualified mechanic inspect the power steering pump, rack and pinion, and other components for wear and tear. This requires specialized tools and knowledge.
Important Note: Don't continue driving with severely impaired steering. It's a safety hazard. If you experience significant difficulty steering, pull over as soon as safely possible.
