410customs

Idahome

Joined: Wed May 2nd, 2018
Posts: 2159
Name: Jamie Occupation: Elevator Design Worlds Tallest Buildings Interests: Ranger Based Vehicles and OFFROAD
Reputation Points: 5459
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On a normally good running 4.0 a slow or hard start is USUALLY fuel pressure related (weak pump)
Check rail pressure at cold start
2001 has return style fuel rail should run/prime around 36-42 psi and there IS a schrader valve LOL
____________________ I build custom RBV, specializing in drivetrain conversions, wiring, suspension and complete custom trucks
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