Speedo Reading when car isn't moving? - F-Body Road Racing and Autocross Forums

I was wondering if anyone else has seen this...

I was driving my 1997 WS6 earlier today and rolled up on a guy making a left turn. He was stopped waiting for a gap in traffic to make his turn. I was stopped behind him with the clutch in and the car in 1st gear. I glanced down at the speedometer and it swept from 0 to 160 to 0 mph in a quick, smooth and controlled fashion while I was stopped. It worked fine afterwards and I have had no issues with the speedometer up until this point.

Anyone else ever had this happen? Anyone know what might cause this?

KeithO View Member Profile	Jun 30 2007, 04:26 PM Post #1
Veteran Member Group: Advanced Members Posts: 2,647 Joined: 23-December 03 From: Pittsburgh, PA Member No.: 14	I was wondering if anyone else has seen this... I was driving my 1997 WS6 earlier today and rolled up on a guy making a left turn. He was stopped waiting for a gap in traffic to make his turn. I was stopped behind him with the clutch in and the car in 1st gear. I glanced down at the speedometer and it swept from 0 to 160 to 0 mph in a quick, smooth and controlled fashion while I was stopped. It worked fine afterwards and I have had no issues with the speedometer up until this point. Anyone else ever had this happen? Anyone know what might cause this?

John_D. View Member Profile	Jul 6 2007, 02:41 PM Post #2
Engine and Tools Moderator Group: Advanced Members Posts: 1,859 Joined: 23-December 03 From: Lebanon TN Member No.: 6	I've heard of gauge sweeping problems when there is a loose ground under the dash.

KeithO View Member Profile	Jul 6 2007, 08:04 PM Post #3
Veteran Member Group: Advanced Members Posts: 2,647 Joined: 23-December 03 From: Pittsburgh, PA Member No.: 14	Interesting and plausible. Thanks.