Brake sensor is to sensitive causing brakes to flicker while driving. 2005 Mercury Montego
My brake light sensor for my brake pedal is to sensitive or my brake pedal is too loose (it doesn't feel to loose). This causes my brake lights to flicker (tail lights) to flicker when I'm driving (as if I'm tapping the brake pedal). It comes on and doesn't flicker when I actually press the brake pedal and if I pull up on the brake pedal while I'm driving it doesn't flicker either. The brake pedal appears to rest right at the point that triggers the lights. Therefore every little bump in the road or anything cause the brake lights to flicker. How would I fix this? Than
Experienced mechanics share their insights in answering this question :
Hi there – your brake light switch needs a minor adjustment. It is adjusted too "tight" or close to the brake pedal lever, or possibly has failed. Adjusting/replacing it will eliminate this flickering problem. I recommend a brake light isn’t working inspection performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, and give you an accurate assessment of damage and cost estimate for repairs.
How to Identify and Fix Common car Problems ?
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The flashing is intended to prompt other drivers to apply their brakes more quickly, thereby helping to shorten stopping distance. Rear-end crashes account for 32% of all traffic accidents in the U.S., according to the National Highway Traffic Safety Administration (NHTSA).
Hi there – your brake light switch needs a minor adjustment. It is adjusted too “tight” or close to the brake pedal lever, or possibly has failed. Adjusting/replacing it will eliminate this flickering problem.
Brake pulsation usually only has one cause, which is warped rotors/brake discs. The main cause of warped rotors is excessive hard braking or fast stops which can severely overheat the discs.
Answer: The flickering lights are probably due to a short circuit somewhere in one or more of the car`s lighting circuits, with said short causing the circuit breaker to vibrate. Systematically disconnect the lighting circuits in your car until the flickering stops.
Your brake warning lights may start to flash, or display in amber or red, in the following situations: Your brake fluid has started to leak. The car is experiencing a sensor failure, which erroneously triggers the brake warning light. The brake pads have become overly worn and need replacing.
The brake light switch is a small component near the brake pedal responsible for activating your car`s brake lights. How does it work? When you press down on the brake, the brake light switch turns on the brake lights at the rear of your vehicle. Essentially, it lets the driver behind know that you intend to slow down.
The anti-lock braking system uses an ABS sensor or wheel sensor to monitor the wheel speed and send this information to the ABS computer. The ABS computer uses this information to prevent the brakes from locking during an emergency stop.
If a sensor goes bad, it`ll send false data to the ABS control module. This can cause the ABS module to believe that the vehicle is sliding off, and it`ll activate the anti-lock brakes. When this happens, the ABS will release brake pressure, pumping the brakes rapidly.
I`m seeing car dealers are installing them on some cars. Are these flashing lights legal? Answer: These types of devices and alterations to the brake lights are not legal, according to state and federal law.
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Brake sensor is to sensitive causing brakes to flicker while driving. 2005 Mercury Montego
ANSWER : Hi there – your brake light switch needs a minor adjustment. It is adjusted too "tight" or close to the brake pedal lever, or possibly has failed. Adjusting/replacing it will eliminate this flickering problem. I recommend a brake light isn’t working inspection performed by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, and give you an accurate assessment of damage and cost estimate for repairs.
EPC light on 2004 Jetta. Code said brake switch faulty, but brakes lights worked. Replaced brake switch, now no brake lights.
ANSWER : Hi there. The first thing that pops in my mind beyond of what you have listed is perhaps the electrical harness attached to the brake switch. Perhaps the harness itself is damaged or you have an exposed wire, loose ground wire somewhere. You might want to have a professional mobile mechanic come to your location and complete a brake lights not working inspection to help you diagnose this issue.
When I put my foot on the brake my back left brake light goes off, when I take it off the brake the brake light comes on
ANSWER : I would suggest trying to disconnect and reconnect the wiring to the rear lights. I have seen these older Toyota vehicles rear lighting short out on the lights themselves due to the way the light circuit was made on the lamp housing. Look at the housing circuit on the light to see if one is touching another, and that could tell you why it is malfunctioning. There could also be a problem with the brake light switch. If you are not comfortable dealing with wires, I recommend getting in touch with a certified mechanic who can look at your brake light issue for you to see what’s going on.
Supportive bar attached to brake pedal interrupts proper braking process
ANSWER : It’s possible to have someone alter the brake pedal or adapt a brake pedal from a different vehicle. You may call around to some customization shops to see if anyone is interested in taking on the project. But first, I would try reaching out to the selling dealer with your concern – especially since it is a new model. Good luck.
Low brake pedal and anti-lock brakes are not kicking in.
ANSWER : The brake pedal is working to stop the vehicle, but there may be air in the controller unit causing the ABS brakes to not function. I recommend bleeding the brake system from the farthest location from the master cylinder to the master cylinder including the ABS unit. If the brakes are still spongy after a full bleed, then the controller will need to be replaced. If you need further assistance with your brake pedal being spongy, then seek out a professional, such as one from Your Mechanic, to help you.
abs light on brake line broke have been replace I bleed brake line but brake pad still go to the floor now wheels lock up
ANSWER : Hello. If the brake pedal is going to the floor then that means that it is not building pressure. If the brake system has been fully bled and there is no air in it then most of the time it is a bad master cylinder or it can be caused by a bad ABS module. If the brake fluid was low and if air got into the system then the only way to properly bleed it is with a scan tool that would allow you to open and close the valves in the ABS unit. Air gets trapped in these easily if the brake fluid gets low. This can also explain why the brakes are locking up. I would usually use my scan tool to bleed the system out first before going any further. I would also scan the brake control module to see what it is reading as a fault. If there is no air in the system and if there is no prominent code then I would replace the master cylinder first. If you want to check out why your brakes are locking up, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose and repair this.
I replaced the brake light switch. Gear lever unlocked because it had locked. Now the brakes feel hard.
ANSWER : Hi, thanks for writing in. You need to check the brake switch install adjustment. You may have the switch adjusted too tight and it is holding the the brake pedal partly down. This will cause the brake master cylinder to not release the brakes when you let off the pedal. Readjust the switch away from the pedal until you feel some free play again in the pedal. This should fix the problem. If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this issue for you, and make or suggest any repairs as needed.
Hard brake pedal and rear brakes locking up.
ANSWER : Hi. I will help you with this issue you are having with your 2001 Durango. Unless you bled the master cylinder, it is possible there is still air in the system. If you car is equipped with ABS, air could have also gotten trapped in the ABS modulator. If ABS equipped, a bi-directional scan tool would be essential to manually activate the ABS system to clear air from that segment of the lines while you are bleeding the system. It is also possible that in all of this work somehow the proportioning valve has been affected causing the desired pressure differential, front versus back, to get out of spec. Using a 2,500 PSI gauge, you can check the pressures at each wheel and that will definitely give you a clue as to which brake circuit is the issue (or both), whether the proportioning valve is working properly and whether the line pressures at each wheel are within spec. Should you need a second opinion, by all means feel free to contact YourMechanic for assistance and we will diagnose and repair the issue for you.
