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Hi, I'm really a newbie - just bought our first Nissan of any kind! 1991 Sentra with 1.6 Automatic - yeah, it's lame but hey - it's ours! It's my wife's...anyway - my question: The fuel gauge is stuck on 1/2 full. Apparently fuel gauge sending unit failure is quite common for this model year with Sentra and NX's. Do I have to remove the fuel tank to replace the sending unit or is there a Chinese (Japanese?) Secret that someone can let me know about to help me out? I'd be much obliged if you did so...thanx!

"Poodles blocking the sun at night - that's why my world's devoid of light."
 

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PoodleBrain said:
Hi, I'm really a newbie - just bought our first Nissan of any kind! 1991 Sentra with 1.6 Automatic - yeah, it's lame but hey - it's ours! It's my wife's...anyway - my question: The fuel gauge is stuck on 1/2 full. Apparently fuel gauge sending unit failure is quite common for this model year with Sentra and NX's. Do I have to remove the fuel tank to replace the sending unit or is there a Chinese (Japanese?) Secret that someone can let me know about to help me out? I'd be much obliged if you did so...thanx!

"Poodles blocking the sun at night - that's why my world's devoid of light."
I had a 1992 sentra with the same problem. There was a recall/TSB back in the day but dealers will not still honor it today...(at least in VA) I got a new unit and paid for it. Unfortunately the fuel gauge is and has been way off. ....
 

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Sorry to hear about your issue Poodle. Check the Sentra section that is specific to your year and see if you can find some further info on where to find a cheap replacement and how easy it might be to replace on your own.
 

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Welcome! The sending unit on my Sentra was replaced about 100,000 miles ago when I got it. The fuel pump/sending unit is accessed by removing the back seat. I have not done this, but have read some posts with good directions on replacing the fuel pump. I think there are some clips holding the seat in place. Do a search, you may find the details. Here is a link of a Nissan mechanic that gives some tips on replacing the fuel pump. This might be a good time to replace the fuel pump if it is not much more then the sending unit. Just a thought. Might save some time/labor in the future.

http://autorepair.about.com/library/faqs/bl299h.htm
 
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