What is a tone ring on a vehicle?
A tone ring, also called a reluctor ring, is a notched or toothed ring that’s used in conjunction with a sensor to determine the number of revolutions or speed of revolutions. That is why in general, it is unsafe to drive a vehicle with a broken wheel speed sensor.
How does tone ring work?
A tone ring works like a bell. A bell sounds when it is struck with an object causing it to vibrate. The difference between a tone ring and bell is that the vibration is activated by stricking the strings which transfers through the bridge to the head, to the tone ring.
Do you need a rear ABS tone ring?
This question is aimed at anyone who has replaced one of their rear ABS tone rings, and also to the guys at the custom 300C shop. I have recently had all the ABS, TC,BAS & ESP lights come on in the car.
Why is my Mercedes tone ring not working?
2004 E320 Wagon. Mercedes shop recommending that I replace the rear left axle because the sensor is not reading the tone ring properly. Apparently on this car the tone ring is an integrated part of the axle – they moved it later. What a mess. Well-functioning axle, but some surface pitting on a small ring means its got to be replaced.
How does the tone ring work on a Ford Escape?
As the tone ring turns it ‘pulses’ the ABS sensor to generate a signal to the ABS module. The signal varies in amplitude and frequency depending on the speed that the wheel is turning: from this the ABS module can determine the speed of the wheel and the rate that it is accelerating and decelerating.
What causes a tone ring on a car to break?
Tone ring breakage is a fairly common failure. This is the second ring that we have replaced on this vehicle as the right front one broke a year or so ago. What causes these rings to break is usually rust. Over time, the axle which is made of steel starts to rust and the rust expands the metal under the tone ring.
When to remove and replace ABS tone rings?
Unless your CV’s are damaged, worn, or leaking, there is no reason to go any further than the tone rings. For starters, here are a few suggestions. Use the factory service manual. If for nothing else, just the torque values. Secondly USE THE TORQUE VALUES!
Where is the ABS tone ring on my LX?
My problems started with ABS, ESP, Brake, and Traction Control lights staying on and the transmission in limp mode. Only code was U1418. I found a broken tone ring on the right rear and ordered one from Modern Muscle.
Where is the wheel speed sensor tone ring?
The wheel speed sensor tone ring is built into the wheel bearing assembly, unlike other wheel speed sensor setups where the tone ring is on the outside of the outer CV joint housing, axle or hub. On the later applications, the WSS tone ring is exposed and very vulnerable to corrosion from road salt and road splash.
Do you need tone rings for V6 AWD Magnum?
The tone rings fit my V6 AWD Magnum perfect on all four axles. Also the effort involved in changing a tone ring is drastically reduced as compared to changing a CV half shaft. Unless your CV’s are damaged, worn, or leaking, there is no reason to go any further than the tone rings.