I had a '96 Cadillac DeVille and the fuel pump hummed so loud it drove me nuts. I added a can of "Marvel Mystery Oil" to a full tank of gas and within 3 days the noise was gone. It was still quiet when I sold the car some time later. This is something you can try that will do no harm to yo...

If my odometer and trip odometer are not working but speedo is working what do I need to do.
How would I know if mine has Yazaki or VDO head?
Thank you. Thank you very much