Theonly major symptom of bad wheel speed sensor in Chevy Silverado 1500 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 Silverado 1500, the anti-lock braking system is disabled. The vehicle can still be braked without ABS. Usually a problem with the driveshaft will produce 4 symptoms that alert the driver of an issue that should be addressed. 1. Intense Vibrations from Underneath the Vehicle. One of the first symptoms of a problem with the driveshaft is vibrations coming from underneath the vehicle. If the driveshaft universal joint (U-joint) or bushings wear Ifyour vehicle is pulling to one side when you brake, it's likely that one of your front anti-lock brake sensors (ABS) is faulty and needs to be replaced. In the video, when our mechanic brakes in the 2005 Ford Excursion he's driving, it pulls to the right. When a wheel pulls that noticeably, it's time for a new ABS wheel sensor. 1 Check Engine Light. One of the most common and most noticeable bad PCV valve symptoms is probably the check engine light on your dashboard. When the engine light shows up, there is a trouble code stored in the engine control module. To read the trouble code from the engine control unit, you have to use an OBD2 scanner. 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. samemachine here, 2021 Highlifter and 8.5hours on machine and have had the 84 2 code for speed sensor come and go on the first 2 rides. I agree, B.S. to have these problems right out of thegate on a new machine. Called the dealer, they said they have had to replace a lot of the speed sensors, that there were made in China! Go figure. Ifyou end up having to get your vacuum modulator replaced, you will only have to spend between $80 to $160 total. Depending on the make and model of your vehicle, the cost of the replacement modulator will be around $50 to $100. The labor costs should only be about $150 to $200 because it doesn't take that long to replace it. Theengine oil pressure sensor often has some plastic parts that can crack with age, which can cause it to start leaking before it malfunctions. You will mostly notice a bad oil pressure sensor by seeing a red oil pressure light on your dashboard. RELATED: 3 Symptoms of a Bad Oil Pressure Sensor. 3. Coolant Temperature Sensors gj95J.