1. 

   Jamie Miles the road warrior

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   On a NON HO EFI 5.0, such as that in an '89 Mercury Grand Marquis, there is one fuel line that goes into the fuel rail on the passenger side and one that goes in on the drivers side. Anyone know which one is the return line?

    

   Jamie Miles, Aug 3, 2008

   #1
2. 

   mean_maverick Senior Member

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   the side with the regulator on it... if that helps

    

   mean_maverick, Aug 3, 2008

   #2

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