Another Tachometer problem

[alingarhs]

I have searched to see if anyone had a similar problem or something that I can make sense of but I couldn't find anything.

My tachometer works fine for the first 10 minutes or so. But after that it starts to act up and when I go around 3k RPMS, the needle spike up past 5k and sometimes goes all the way down past 9k. Shifting usually puts it back where its suppose to be but once I get to 3k its acts up again.

My Gauge cluster is messed up, it doesn't measure the fuel level right, or the water temperature, or even the oil pressure..Also the back lights don't even work just the needles lights up. Is there a big chance I just need to replace the cluster?

 

[64_Frankenstein]

If every thing wire up correctly Im sure it's time to replace the cluster.

 

[alingarhs]

Yeah, I'm just worried its the Sensor.
But it makes me think its the cluster because its not working right besides the Speedometer.
I did check to see if anything was unplugged and I didn't find anything.

 

[kergilman]

If you are having an issue w/ the speedo sensor, your odometer would be having issues along w/ the tach. Sounds like your cluster is the issue.

 

[alingarhs]

Well the only thing that works on that Cluster is the Speedometer.
But the Odometer also is broken because I will drive for 10 minutes and it will say I drove 80 miles

I did order another cluster, so i will see if that is the problem, I am just wondering if that is a commen issue or its more likely the sensor.

 

[vettesmoker]

what sensor? check ground circuits with the cluster out while you're in there

 

[alingarhs]

The Tachometer sensor
I will have to check it out tomorrow, I have no light