Oil Pressure / Fuel level gauge

[FVCZ71]

I have a 00 Z71 OBS Tahoe im having a problem with both the fuel level and oil pressure gauge fluttering . I had the cluster sent out and checked all was ok they said . Any other ground issues I could look for ? Thanks in advance

 

[HiHoeSilver]

Mine did the same thing. It's the sending units and /or their respective grounds.

 

[FVCZ71]

Thanks for the info

 

[FVCZ71]

Can anyone shed some light on where the ground is for the oil pressure gauge ? I figure the fuel level gauge ground requires dropping of the tank ?

 

[east302]

The oil pressure sender looks to be grounded at the sensor. It's in a crappy location by the distributor.

Fuel pump is grounded at G404, which is somewhere near the tail lights, but I'd think that you would have other issues if it was not grounded.

Here are the diagnostics for the oil pressure gauge. Looks like you'd need a signal generator...not sure on that one.

I'd try a different cluster.




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