Immediate Actions:
1. Safety First: Avoid driving the truck if possible. Steering will be extremely difficult, especially at low speeds. If you *must* drive, do so only at very low speeds and be extremely cautious.
2. Check the Obvious (Quick Checks):
* Fluid Level: Check the power steering fluid reservoir. Is it low or empty? If low, add the correct type of power steering fluid (consult your owner's manual). *Never* overfill.
* Belt Tension: Inspect the serpentine belt (the long belt that drives many accessories, including the power steering pump). Is it cracked, broken, or loose? A loose or broken belt will prevent the pump from working.
* Leaks: Look carefully for any leaks around the power steering pump, hoses, and steering rack. Look for wet spots or fluid trails.
If the quick checks reveal nothing:
This indicates a more serious problem that likely requires professional attention. Possible causes include:
* Power Steering Pump Failure: The pump itself may have failed. This is a common cause of power steering problems.
* Power Steering Hoses: A hose could be cracked, leaking, or completely detached.
* Power Steering Rack and Pinion: Problems here can cause loss of power steering assistance.
* Low Fluid Pressure: Even if the fluid level is okay, there might be a leak somewhere causing low pressure.
* Electrical Issues (Less Common): On some models, electrical components control parts of the power steering system. A faulty sensor or other electrical issue is less likely, but possible.
What to Do Next:
* Don't try to repair it yourself unless you have significant mechanical experience: Working on power steering systems involves dealing with high-pressure fluid, which can be dangerous if handled improperly.
* Have it towed to a qualified mechanic: A mechanic can properly diagnose the problem and perform the necessary repairs. Explain the symptoms clearly.
* Get multiple estimates if possible: This will help ensure you're getting a fair price.
Important Note: Continuing to drive with a faulty power steering system can cause further damage and lead to potentially dangerous situations. It's best to have it fixed as soon as possible.
