4.6L General Discussion This section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.

Figured The Problem; Need Solution

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Old May 16, 2018 | 06:12 AM
  #1  
Jon S's Avatar
Jon S
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Joined: Dec 2006
Posts: 32
From: NY
Default Figured The Problem; Need Solution

Regarding my crank no start I have figured out the problem is not the fuel pump but rather the fact the fuel pump is not being primed for three seconds prior to starting The fuel pump will run once the engine is started with starting fluid which means that my crankshaft position sensor is telling the fuel pump to run The real question is why is the fuel pump not being turned on for three seconds when my commission key is turned to start
Old May 16, 2018 | 06:49 AM
  #2  
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GT Nate
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Joined: Dec 2017
Posts: 444
From: Missouri
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how's the fuel pressure when it's running? Checked the fuel filter?
Old May 16, 2018 | 06:55 AM
  #3  
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Jon S
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Joined: Dec 2006
Posts: 32
From: NY
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The 2004 has no Schrader valve but I'm assuming Pressure is fine.

This problem developed after I changed my battery and I had to fix the PATS System the THEFT light now goes out after 3 seconds of ignition on and engine does start and run with starting fluid initial spray so I "think" PATS is a non issue.
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