my digital odometer displays the word error and my trip meter resets itself after every shutoff
sometimes the trip doesnt even work right like i might go 10 miles and it says i went 2 miles any ideas?

 

would be nice to know what kind of truck you have....

 

my bad 99 blazer 4.3 auto

 

This is mostlikely caused by a faulty connection at the back of the cluster. You should pull the cluster and make sure everything is securely connected. Disconnect the wiring at the back of the cluster and inspect where the cluster side connector is soldered onto the circuit board. If there is damage in this area, you may be able to re-solder the connection and cure the problem, but it is likely that you will have to replace the cluster if damage is present.