One of the severe problems that shouldn’t happen to a person is rear wheel locked up while driving. If you go for a vacation, it will be the worst vacation you will ever have. So what can be the reason behind this problem and the solution? I am here to help you out and read the article to the end without hesitation!
Table of Contents
Why Do Rear Wheel Locked Up While Driving?
Here are six significant problems causing rear wheel lock
1. Emergency Brake Lock:
One of the foremost common causes of wheel lockup on drum brake-equipped vehicles is the service and emergency brake. If these adjustments are made incorrectly, it will result in the rear wheel locked up while driving. It is vital that before the service brakes are adjusted that the emergency adjustment is checked. If the emergency system isn’t appropriately adjusted before the brake shoes are changed, it’ll cause the rear wheels to interact timely.
This is often very true of vehicles equipped with duo-servo rear drum brakes. The original method of checking the emergency on these vehicles is ascertaining the strut bar’s anti-rattle spring. This means the strut bar is being pressed into the primary shoe, preventing it from resting against the anchor pin. This might cause an over-sensitive rear brake which could lead to a lockup condition.
2. Struck Return Spring:
Rear brake hardware plays an essential part in proper wheel rotation and brake operation. Many consider that return springs are only the way to release the brakes but actually, they also determine when the rear brakes are becoming too use. A weak return spring will allow the brakes to interact timely.
This might cause the rear wheel to lock up while driving. Hold-down springs are designed to remain the shoe firmly against the backing plate. If the hold-down springs are weak, then the shoe could cock, causing a binding condition.
3. Shoe Pads:
The shoe lands are often over-seen items when trying to seek out the reason for a rear-wheel lockup condition. The shoe lands keep the shoe square with the drum and provide a friction surface for the shoes to manoeuvre against. Over time the pads can become grooved and corroded.
Pad grooving can allow the shoe to carry on either the appliance or release the brakes, which can cause a lockup. The shoe lands should be checked during the inspection, and if rear brake service is performed, they need to be cleaned and lubed.
4. Uneven Brake Drum:
A lousy round drum or drums that change in diameter an excessive amount from side to side could cause a one-wheel lockup condition. Measuring drum runout or out of roundness isn’t accessible within the sector. Current micrometres don’t allow a repeatable measurement to be taken.
Using the brake lathe and a dial indicator is accurate if the lathe and adapters are within the proper condition. If you think that the rear drum is causing the matter to install it on the other side of the vehicle and test drive the car.
5. Brake Shoe Contamination:
Brake shoe contamination is often the reason for the rear wheel locked up while driving. If an axle seal or wheel cylinder leaks and contaminates the shoe, it changes the coefficient of friction. Mild contamination Increases the friction is increased while severe contamination will cause a reduction in friction. A typical source of contamination occurs during the installation of the latest shoes.
The grease and brake fluid from the technician’s hands often lands upon the new friction surface. An efficient method of preventing this is to put wide masking tape on all the friction before starting the work. Once complete, remove the tape, and thus, the shoes are perfect.
6. Brake Valving:
The overwhelming majority of rear-wheel lockup problems are getting to be related to the mechanical causes discussed earlier. There will be occasions when the matter isn’t related to a mechanical problem within the rear brakes, and you’d wish to be prepared for this. the only component that might cause rear wheel lockup is the proportioning valve.
Unlock A Tire Wheel Lock:
Follow the procedure to unlock the wheel.
- Park the vehicle on A level surface and set the emergency to prevent rolling or excessive movement while working on the wheel.
- Locate the gunlock key inside the vehicle trunk. Wheel locks installed at the factory often have the access stored within the compartment, the trunk, or during a storage compartment within the rear of sport utility vehicle vehicles.
- Position the gunlock key on the gunlock. Match the recessed lock pattern on the gunlock to the raised pattern on the gunlock key. Hold the key in place on the gunlock alongside your hand.
- Slide the highest of the wrench over the hex-shaped end of the gunlock key. Push the highest of the wrench securely onto the key.
- Apply forward pressure to the wrench to hold the key in place on the lock. Pull the wrench to the left or counter-clockwise to interrupt the lock-free. Continue turning the lock to loosen and deduct.
How To Get Rid Of Rear Wheel Lockup?
- The replacement of the rear shoe should be done whenever the rear brake shoes are replaced to prevent this from happening.
- In the specific case, the emergency on this type of auto grab the strut rod and inspect to manoeuvre it toward the primary shoe.
- Using the brake lathe and a dial indicator is accurate for aligning the drum and even rims.
- The grease and brake fluid from the technician’s hands often lands upon the new friction surface. An efficient method of preventing this is to put wide masking tape on all the friction before starting the work. Once complete, remove the tape, and thus, the shoes are perfect.
- Make sure your emergency brakes won’t drag you to cost much by making your wheels worse. Get them fixed.
Vehicles always require special care for good behavior. Sometimes, one’s personality can be judged by the way he maintains his car. The rear wheel locked up while driving is a severe and dangerous issue that needs to be taken care of.
I hope you found this helpful article and convey your thoughts in the comment box.