A buddy of mine has the "Snap-On" diagnositc unit. Normally when I drive, there is no reaction from the Speedometer until I hit about 40mph where then it jumps to 60 in reading. The Snap-on diagnositc unit showed differently. As I accelerated from 0 on up, the speed reading where correct.

So, this is why I have elimated the Speed Sensor, the ECU and the wiring between the Speed Sensor and the ECU. Last causes left are the cluster and the wiring from the cluster. I did change the cluster, possible the replacement is bad too, and saw simliar results. This leaves me with the wiring from the cluster to the ECU. Boy I hope it is easy as it sounds. LOL

Response from lashark
1 question asked

Since I already replaced the cluster with a used one I purchased on EBAY I almost ruled this out as the problem. Only thing that made me second guess my assumption was the speedometer on the replacement cluster was not working the same way as the original cluster. It was somewhat similar but still erratic reading. This was enough that I ordered a third cluster. Well, this did the trick and all is working now. Glad I did it because the wiring going into some blue box in the dash looked chaotic.

Now with a different odometer reading, I guess I have to document the change with the different mileage reading.

Thanks for all the help gang!

Response from lashark
1 question asked

Glad, you got it going again.
Good Luck!

Answered by rasmataz
68 questions asked

[quote="lashark"]Since I already replaced the cluster with a used one I purchased on EBAY I almost ruled this out as the problem. Only thing that made me second guess my assumption was the speedometer on the replacement cluster was not working the same way as the original cluster. It was somewhat similar but still erratic reading. This was enough that I ordered a third cluster. Well, this did the trick and all is working now. Glad I did it because the wiring going into some blue box in the dash looked chaotic.

Now with a different odometer reading, I guess I have to document the change with the different mileage reading.

Don't forget to donate-maybe next time its nothing there to read. Its free99 who won't take advantage. It takes money to run this site.

Answered by rasmataz
68 questions asked

Already donated via paypal but is not the same email link to this site. This site is very informative!

Response from lashark
1 question asked