Speedo issue
Thread Starter
Race Director
Joined: Apr 2000
Posts: 15,344
Likes: 4,008
From: Texas
Thought I'd close this one out. If you read thru the posts you'll see everything I did. The final attempt involved replacing the new (albeit AutoZone cheap) VSS with a new VSS from AC Delco.
After roughly 60 miles of driving, including many full throttle runs thru a couple gears, all appears to be normal. The speedo doesn't jump around, drop to 0mph, or shoot to 220mph.
Now I can finish my part throttle tuning and get down to Tom Wongs place for WOT
After roughly 60 miles of driving, including many full throttle runs thru a couple gears, all appears to be normal. The speedo doesn't jump around, drop to 0mph, or shoot to 220mph.
Now I can finish my part throttle tuning and get down to Tom Wongs place for WOT
Melting Slicks
Joined: Jun 2000
Posts: 3,215
Likes: 6
From: Tampa Florida
So there really is something to that motto, "Keep your GM, all GM..." Nah...just bad luck getting a bad part at the local store. 
Happy to hear it is back on progress-let us here some dyno numbers!
Happy to hear it is back on progress-let us here some dyno numbers!
Le Mans Master
Joined: Aug 2002
Posts: 6,079
Likes: 3
From: Clearwater FL
St. Jude Donor '06
I got my new VSS from rockauto. I'm pretty sure that it wasn't a Delco part. Seem kind of odd that it does the same thing with the old/new parts in both of our cases. Maybe there is a slightly different characteristic in the OEM. I'll wait a while before springing for another one to see if your problem pops up again.
