fuel gauge pinned at full

[taylor414ce2003]

all of a sudden my fuel gauge reads full-turn ignition off it goes to empty any ideas on what the cause could be?

 

[MAC1]

I'm only guessing, but it may be that there is a short to ground at the sender unit. What diagnostic codes, if any, do you see?

 

[br94mk8]

thats defanetly a ground problem

 

[taylor414ce2003]

dont have the comp. so no codes-cars system says all monitored systems ok Do I need to drop the fuel tank to get at the sending unit?

 

[taylor414ce2003]

turns out it is the sending unit- $525 for the dealer to repair my after market warranty is paying off!!! my cost is $100 for the repair