check engine light comes on when gas tank hits 3/4 full on 1996 Volvo 960

I've been told it has something to do with the smog system. This has happened 3 times, each time when the gas gauge shows 3/4 of a tank.

by in Van Nuys, CA on November 13, 2013
2 answers 1 comment
ANSWER by on November 13, 2013
Sounds like you have a bad spot on your sending unit,but we need the trouble code to give you a better guesstimate on what it could be.
COMMENT by on November 13, 2013
Thank you - I will see if I can get the code.
ANSWER by on November 14, 2013
agree with #1

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