2008 Ford Edge Q&A

2008 Ford Edge Question: high pitched noise from the back

I have a high pitched noise and have asked the dealer about it and was told this is related to the plastic fuel pump (if I understood) and there's nothing to be done. It's not always there but it's like having a dog whistle :) It seems to be more likely when it's chillier outside but not always there. -
Answer 1
Think there is a TSB on that, check with another dealer, talk to service mananger. Seems like it was something about the pump being to close to the bottom of the fuel tank, I may be wrong as I work on about anything that has wheels! -
Comment 1
: what is a TSB? -
Comment 2
The service tech. will know! Technical Service Bulletin. -
Comment 3
Thank you! I really appreciate it. -