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"Most likely it is the in-tank sender that is at fault. There is a coating on the sender that wears off and causes the gage to read erratically."
A coating on the sender wears off? I've never heard of a problem like this. Is this typical of all Buick cars? Will the replacement sender have the same problem?
For argument sake, lets say I tried to tackle this job myself. First of all, is there any way for me to verify that the sender is causing the problem? Any possibility it could be something else? Loose wire? Faulty gage? Next, what would I have to do to remove the gas tank.
I assume the following steps would be needed:
1) disconnect the negative cable from the battery
2) relieve the pressure on the fuel system by opening the fuel cap and leave it open until done
3) drain the fuel somehow (please elaborate)
4) remove the tank somehow (please elaborate)
5) replace the sending unit
6) reverse the order and put everything back
Thanks for any additional info you can supply.
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