Are you facing difficulty starting your push-to-start car due to a locked brake pedal? If so, this article will guide you through the potential causes and provide troubleshooting steps to help you resolve the issue.
Stiff Brake Pedal Before Engine Start
When you press the brake pedal in a push-to-start car with the engine off, you may encounter increased pressure due to power brakes relying on engine vacuum or other sources. This stiffness is typically normal and should not prevent you from starting the car.
Brake Pedal Won’t Depress to Start Car
However, if the brake pedal is so stiff that you cannot depress it to start the car, there may be an underlying issue. Here are some potential causes:
Obstructed Brake Pedal: Check for floor mats or any objects that may be blocking the movement of the pedal.
Rusty Brake Calipers: In push-to-start cars, rust accumulation in the calipers can obstruct the disengagement of the brake switch.
No Vacuum Pressure: Vacuum-powered brake boosters rely on engine vacuum to assist in brake pedal depression. If there are any cracks in the vacuum hoses, it can result in a stiff brake pedal.
Bad Power Steering Pump or Belt: In hydraulic brake boosters, the power steering pump provides the necessary pressure. A malfunctioning pump or power steering belt can lead to a stiff brake pedal.
Restricted Brake Lines or Hoses: Pinched or damaged brake lines can restrict brake fluid flow, resulting in increased pedal stiffness.
Other Potential Reasons for Car Not Starting
In addition to brake pedal issues, there are other potential reasons why your push-to-start car may not start:
Bad Starter: Listen for clicking, grinding, or whirring sounds when starting, which could indicate a faulty starter.
Failed Ignition Switch: Loss of power to accessories or engine failure to start can be caused by a malfunctioning ignition switch.
Dead Battery: Dim headlights, slow engine cranking, or low battery voltage may signify a depleted battery.
If your push-to-start car won’t start and the brake pedal is stiff, try the following:
Check for Obstructions: Ensure there are no obstacles like floor mats or objects blocking the brake pedal.
Consider Potential Causes: Refer to the list of potential causes above and inspect for any signs of rust, damage, or leaks.
Seek Professional Assistance: If the issue persists or you are unable to identify the cause, it’s advisable to seek professional assistance from a mechanic for proper diagnosis and repair.
FAQ
Why won’t my push-to-start car start when the brakes are locked?
Stiff brakes when the engine is off are usually normal because power brakes require engine vacuum or other power sources.
What are some potential causes of a stiff brake pedal that prevents car starting?
Potential causes include obstructed brake pedals, rusty brake calipers, no vacuum pressure, a bad power steering pump or belt, and restricted brake lines or hoses.
What are some other reasons why my car may not be starting?
Other potential reasons include a bad starter, failed ignition switch, or dead battery.
What should I do if my car won’t start with a stiff brake pedal?
Check for obstructions and consider the potential causes listed above. If the issue persists, seek professional assistance from a mechanic.
Characteristic
Advice
Key Point
Stiff brake pedal before engine start
Usually normal due to power brakes requiring engine vacuum or other power sources.
Don’t worry if the brake pedal is stiff before starting the engine.
Brake pedal won’t depress to start car
Check for obstructions and consider potential causes (Rusty brake calipers, no vacuum pressure, bad power steering pump or belt, restricted brake lines or hoses).
If the brake pedal won’t depress to start the car, inspect for issues and seek professional help if necessary.
Other potential reasons for car not starting
Consider potential causes (Bad starter, failed ignition switch, dead battery).
If the car won’t start, check for other potential issues besides the brake pedal.
