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1994.5 - 1997 7.3L Power Stroke Diesel  

What's difference between ad ae injectors?

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Old Jun 10, 2025 | 08:57 AM
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What's difference between ad ae injectors?

Just a shorter piston?
 
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Old Jun 10, 2025 | 10:53 AM
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From: Bahstun
AA - '94-'97, 90cc fuel (which is per 1,000 injections, IIRC)
AB - all early '99 trucks, 130cc fuel, split shot
AC - high-torque 7.3 non-PowerStroke engines (buses, etc.), 160cc fuel, single shot
AD - '99-'03 PSD stock injector, 135-140cc, split shot
AE - longer lead AD for cackle reduction in cyl #8
 
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Old Jun 10, 2025 | 01:11 PM
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I meant the insides. What is "longer lead"
 
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Old Jun 10, 2025 | 03:25 PM
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From: Bahstun
The first leading shot is just a bit more fuel due to low fuel pressure spikes on the end of a dead headed fuel system
 
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Old Jun 10, 2025 | 03:33 PM
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and i was gonna say the difference is one letter.
 
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