TwinTurbo.NET: Nissan 300ZX forum - Are you chasing an issue?
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Subject Are you chasing an issue?
     
Posted by -Grimm- on October 17, 2014 at 9:53 AM
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In Reply To Slow fuel drain-back as car sits=air in fuel line. Thoughts? posted by LivinTheDream on October 16, 2014 at 01:22 PM
     
Message Or just playing around.

My car does the same (never put a clear tube though, but I have a permanent pressure gauge). I never worried about it because I feel like that's fairly normal, and the pressure returns when the pump primes.

It could be either or, leaking back through the check valve or leaking past the regulator/damper. I doubt if both systems are still (or ever) 100% sealed.

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1992 300ZX NA 5 Sp (Dead)
1990 300ZX NA Auto 2+2 (Dead)
1990 300ZX TT 5 Sp (Est. 400 HP)
1990 300ZX TT 5 Sp (Est. 600 HP)
2004 G35 Sport 6MT (DD)

     
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