There is a loud obnoxious rattling squeaking sound from the fuel pressure regulator down thru the entire fuel lines to the tank. It's been doing this for close to a year now. The sounds would lesson if I took off the vacuum line when it first started 9 months ago. I ran the truck with the vacuum line off for months with no performance issue but now there is a low hesitation at idle thru 1rst gear and it's more noticeable in reverse. I tried replacing the the fuel filter. Also before this all started I was adding Lucas fuel treatment or sea foam every other fill up.
Is my fuel pump all gunked up from those treatments possibly. Any ideas to trouble shoot this. 500 - 600 to drop the the tank and replace the pump will really hurt. Thanks for any help.
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