There is a big problem here 3 times going down the highway the numbers on the speedometer would slowly start increasing until it would show I was going 120 mph and 6o or 70 mph parked the last time this happened I noticed that each time I started it it would move back 5mph until it got back to it's normal position.

It let me down 700 mph from home when the light came on and and run the battery down . Recharging wouldn't get it to start the glow plug wouldn't come on or turn over.

had towed to a dealership the code reader couldn't communicate with the other parts.

finally they said it was a 70 some pin connector and they got it started and I was able to come home.

Local dealership said this is a Cluster failure.

don't think so.