Questions & Answers for: Chevrolet Lumina APV erratic speedo

speedo not working very erratic shifting what are the symptoms of a bad vss change the speed sensor it will be on the transmission , lower passenger side

...under the hood to make sure theres not a loose wiring connector also so altenators can cause erratic behavior in elictrical ...

All of a sudden my electric windows stopped, then the AC blower stopped, and then the Speedo stopped working. "Anti-brake" and "service engine soon" lights came on. Thanks, Mike at