The guide became stiff and the car stalled.

If the steering wheel suddenly becomes stiff and the vehicle stalls, it's a critical sign that the power steering system has lost assistance. In most modern vehicles, the steering relies on either hydraulic or electric power. When the engine shuts down due to a battery, alternator, or belt failure, the power steering stops working, and the steering wheel becomes rigid, making it difficult to control the vehicle.

• Power steering system inspection
• Accessory belt check
• Battery and charging evaluation
• Inspection of fuses and relays
• Alternator check

Loss of assistance in the direction

Power steering relies on the operation of either the engine or the electrical system. When either of these fails, the steering wheel doesn't lock completely, but it becomes extremely stiff.

Power steering without pressure

In hydraulic systems, the pump stops generating pressure when the engine is turned off, causing resistance when turning the steering wheel.

Electric power steering without power

In electrical power steering (EPS) systems, a lack of voltage causes the steering module to stop assisting, increasing the effort required to turn.

Electrical failures that cause shutdown

Often the problem is not the steering itself, but a fault that shuts down the vehicle.

Faulty alternator

If the alternator stops charging, the battery will discharge until the vehicle shuts down completely.

Battery not charged enough

A weak battery can cause electrical blackouts that affect multiple systems, including the steering.

Associated mechanical problems

There may also be physical failures that directly affect the system.

broken or loose strap

The accessory belt drives the power steering pump. If it breaks, power steering assistance is lost immediately.

Damaged power steering pump

A faulty pump does not generate enough pressure, causing stiffness in the steering wheel even with the engine running.

What to do at the moment

Acting correctly can prevent accidents and greater damage.

Maintain control of the vehicle

Even though the steering wheel is stiff, you can still turn it with more effort. Reduce your speed carefully.

Stop in a safe place

Avoid continuing to drive and request assistance to prevent further damage or total loss of control.

Does the steering wheel lock completely or just become stiff?
It generally doesn't freeze, but it does become very rigid due to lack of assistance.

Can I continue driving under these conditions?
It is not recommended, as it compromises the control and safety of the vehicle.