Ford Mustang Forum - View Single Post - Squeal from engine only when key is turned on
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post #6 of (permalink) Old 01-25-2011 Thread Starter
bataradena's Avatar
Joined: Nov 2010
Location: Tucson.
Posts: 28
Originally Posted by bataradena View Post
I did replaced the fuel filter the first day I purchase the used car. As for isolating the noise, I wish it was repeatable. The funny thing is, I had the wife come out of the house to give me a helping hand more then once and the noise never came back while she was behind the wheel, go figure. She believes I'm having a senior moments.

I hate to admit this, this is the very first Ford I ever own. As a former Chevy guy... Go ahead I'll wait... I had a K2500 TBI that primed the fuel system for a split second when the key is first turned to ON position. I'm going with the theory Ford does the same, correct me if I'm wrong.

You do bring up a good source were the noise could be emitting from, (regulator/check valve(silver thing on the fuel line). I do remember seeing this part, I thought this was for the AC, located on the passenger side near the firewall and very near were the IAC I replaced thinking this was the source of the noise.

I did a quick check in my FSM-pdf version for the Fuel Regulator and it's not shown. Tried a search on line for a replacement part and nothing is coming up. Maybe goes by a different name or is this a dealer part only?
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