* Power Steering Failure: The most likely culprit for the stiff steering is a failure in the power steering system. This could be due to a leak in the power steering fluid, a faulty power steering pump, a problem with the steering gear box, or a broken belt driving the pump.
* Brake System Failure: The difficulty pressing the brake pedal points to a problem with the braking system. This could be:
* Low brake fluid: Check the brake fluid reservoir immediately. Low fluid suggests a leak somewhere in the system (lines, calipers, wheel cylinders). Driving with low brake fluid is extremely dangerous.
* Master cylinder failure: The master cylinder is the heart of the braking system. Failure here means no brake pressure.
* Brake booster failure: The brake booster assists you in applying the brakes. A failed booster requires significantly more force to brake.
* Frozen or seized calipers/wheel cylinders: This can cause the brakes to bind, making them hard to press and potentially difficult to steer.
* Vacuum Leak: A significant vacuum leak could affect both the power brakes (making the pedal hard) and potentially the power steering (though less likely to cause complete failure).
* Transmission Problems (Less Likely but Possible): In very rare circumstances, a severely damaged transmission could indirectly impact steering and braking. This is less likely than the other issues listed.
What to do:
1. Do NOT attempt to drive the vehicle. This is extremely dangerous.
2. Have it towed to a qualified mechanic. Describe the symptoms clearly.
3. Do not attempt any repairs yourself unless you are a qualified mechanic. Incorrect repairs could worsen the situation.
4. Check the brake fluid reservoir. If it's low, this is a serious issue that needs immediate attention.
The problem likely involves a combination of issues, especially given both steering and braking are affected. A professional diagnosis is essential to determine the root cause and ensure the vehicle is safe to operate again.