Theonly major symptom of bad wheel speed sensor in Ford Edge is the ABS warning light comes on in the instrument cluster, and the anti-lock braking system is disabled. When the ABS light / comes on in your Edge, the anti-lock braking system is disabled. The vehicle can still be braked without ABS. Note Many other problems can mimic a bad O2 sensor. You'll want to perform a thorough diagnosis before condemning the sensor itself. Illuminated Check Engine Light. One of the most common signs of a bad O2 sensor is an illuminated check engine light. The PCM monitors the operation of the O2 sensors and their heater circuits. Almostall modern vehicles come with vehicle dynamics systems, which, at the very least, include anti-lock brakes (ABS). For the ABS system to work, the vehicle dynamics module(s) need(s) wheel speed information for each of the four wheels.. The ABS system then uses wheel speed information to pulse the brakes during a sudden hard braking event to prevent wheel lockup, because when the wheels 6 Misfires. Low fuel pressure in the fuel system will cause an off-balance air/fuel mixture and that, in turn, causes weak combustion. This can be felt as misfires on acceleration or even at idle. Fortunately, the fuel system in a car requires only minor tweaks. A Noise is the most common symptom of a bad wheel bearing. However, there are other potential signs as well, such as vibrations while driving. At low speeds, you will be able to feel the vibrations, while at higher speeds, they'll manifest as humming sounds. It is important for vehicle owners to know the trouble signs for bad wheel bearings. 2 ABS Module. The ABS control module is a microprocessor that runs diagnostic checks on a vehicle's anti-lock braking system and controls the ABS modulator. It uses data from the speed sensor to manage the valve system in the ABS modulator to restore hydraulic pressure. 3. CadillacEscalade - (photo by Cadillac) The only major symptom of bad wheel speed sensor in Cadillac Escalade is the ABS warning light comes on in the instrument cluster, and the anti-lock braking system is disabled. When the ABS light / comes on in your Escalade, the anti-lock braking system is disabled. The vehicle can still be braked Commonissues that cause Dodge transmission problems: Low transmission fluid levels - Can cause delayed shifting or hard shifts.; Faulty speed sensor - Vehicle won't change gears, stuck in gear.; Faulty valve body/solenoids - The faulty valve body can cause shift delays or bumps when downshifting from 2nd to 1st gear.; Leaking transmission cooler lines - Same symptoms as low Setthe transmission to Park (automatic) or Neutral (manual). Pop the hood open. Locate the DPFE sensor in your vehicle. Look for an aluminum or plastic rectangle with an electrical connector and two vacuum hoses that plug into the EGR's exhaust-to-intake pipe (see the photograph at the top of this post). Themost common symptoms of a bad idle control valve are rough idle and a check engine light on your dashboard. You may also notice fluctuating idle speed or a stalling engine on idle when your IAC valve is bad. Here is a more detailed list of the signs of a bad or failing idle air control valve (IAC) to look for: 1. Check Engine Light. opTDNAd.