I have a hollow ting sound when I sow down that sounds like perhaps it is the fuel sender in the trunk. Could they make a sound? My fuel guage stopped working a year ago and I just count the miles. What is the best diagnostic procedure?

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Steve
1985 Mercedes 500SL Euro (Gray market)
1995 BMW 520i Euro (Gray market)
1992 BMW 525it Wagon
1994 Honda Del Sol Si

yes, the fuel tank sending unit can make that noise. I have replaced one for that very reason on a 380 se.