Table of Contents
What module controls the speedometer?
behind the scenes of your speedometer, there’s a computer and electrical system that helps relay signals about how fast your car is moving, among many other things. this computer is known as the engine control module (ecm). if the ecm fails to do its job properly, it can manifest itself in a number of ways.
Can speedometer affect transmission?
Problem Description The vehicle may lose vehicle speed signal, which can affect speedometer operation and transmission shift quality. Most often the vehicle speed sensor is faulty, however, at times, the driven gear inside the transmission is at fault.
Where is the speedometer sensor?
The Speedometer Vehicle Speed Sensor (VSS) is located in the transmission housing on the passenger side output flange. Automatic Transmission The Vehicle Speed Sensor (VSS) is located on the right side of the transmission near the output shaft.
What are the symptoms of a bad speed sensor?
5 Common Bad Speed Sensor Symptoms
- Transmission problems.
- Erratic speedometer readings.
- Inability to engage cruise control.
- Lack of torque converter clutch application.
- Check Engine Light is triggered.
- An internal electrical fault in the speed sensor.
- Damage on the sensor itself.
- Poor vehicle maintenance.
What are the signs of a bad speed sensor?
Where is the speedometer sensor located?
What to do if your speedometer doesn’t work?
Replacing the bad speed sensor will solve this issue. Also, if speedometer in your Chevy stops working or reads erratically, test the cruise control out. The cruise control uses the same sensors as your speedometer. If the cruise is working and the check engine light is on, the problem is likely with the speedometer itself.
Are there transmission problems in my 2004 GMC Sierra?
Now, these trucks are getting older, and it’s very likely that your 2004 Sierra may be having transmission problems. Below, you’ll find a ton of troubleshooting your transmission problems.
What kind of display does a GM speedometer have?
Most GM gauge clusters of this time frame have two digital displays – the odometer and the gear indicator (commonly called the PRNDL screen). Either one or both screen will typically be affected. This common issue is not actually a problem with the digital displays themselves as they seem to be quite reliable. 1. Dim, Dark or Dead Display
Are there any accidents due to erratic speedometers?
No deaths or injuries were ever attributed to the erratic gauges, but owners of the vehicles felt the problem was a safety concern. In 2007, Kevin Zwicker filed suit against General Motors in U.S. District Court in Seattle seeking three types of compensation: