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Old 09-18-2013, 10:43 PM   #25
Painter D
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Join Date: Jun 2007
Location: DFW (Forney)
Posts: 1,529
Re: 6.0 wont rev past 1200rpm

It was the fuel pump relay , it wasnt sending constant power to the pump, it was sending an intermittent signal. Which was dropping the fuel pressure down to 10psi when I pushed the gas pedal. The interesting part is that the motor was running on 35psi, didnt figure it would do that.
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'58 SWB Fleetside...Front & Rear Porterbuilt Dropmember, 6.0 LS /4L60E. Accuair E-level, 20 Billet Specialties (Vintecs)

'63 Buick Riviera ... AccuAir E-level, 20" Billet Specialties (Vintecs)


http://67-72chevytrucks.com/vboard/s...=528853&page=5
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