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Removing injector

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Old Oct 11, 2011 | 12:15 PM
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Default Removing injector

Ok I am removing my fuel injectors on my 1992 300 and I can't figure out how to de pressurize the fuel system? How do I go about doing this? And will injectors out of a 4.6 v8 work? They came out of a 1996 mustang gt.
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Old Oct 11, 2011 | 03:02 PM
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Why are you replacing them?

To depressurize the system, you need to find the schroder valve on the fuel rail (looks like a tire valve) and press the button in the middle like letting the air out of a tire
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Old Oct 11, 2011 | 03:18 PM
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#3 and 5 injectors don't put out any fuel
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Old Oct 11, 2011 | 03:25 PM
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Originally Posted by 95stepside
Why are you replacing them?

To depressurize the system, you need to find the schroder valve on the fuel rail (looks like a tire valve) and press the button in the middle like letting the air out of a tire
Put a rag or something over it when you do it. Its gonna spray pretty hard for a second or two.
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Old Oct 11, 2011 | 03:45 PM
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first off how do you know it is the
#3 and#5 injectors?

the 300 is a batch fire system. fires all 6 at the same time everytime.

second. you have to use injectors for the 300. they run a low pound injector. something like 12 or 14 pound injectors. grey tops.
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Old Oct 11, 2011 | 03:58 PM
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its a 14lb injector the 302 and 351 is a 19lb
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Old Oct 11, 2011 | 04:00 PM
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oh and the 4.9 fires injectors 135 at once and the than the other 3, i gotta pin-out lol
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Old Oct 11, 2011 | 04:01 PM
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Originally Posted by 95fordf150xl
its a 14lb injector the 302 and 351 is a 19lb
i almost knew it was a 14lbs but without looking it up i didnt want to give the wrong info.
thanks
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Old Oct 11, 2011 | 04:09 PM
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They have spark so I started it and put a flammable vapor sensor thing I stole out of my work truck and stuck it by the hole and no reading put it by a firing one and a reading. They look kinda a vanilla color not grey.
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Old Oct 11, 2011 | 04:13 PM
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yeah they will fade out and look like that. but trust me at one time they were grey lol


here is a link to the colors and pounds for the factory ford injectors.
http://www.fordfuelinjection.com/?p=38

Last edited by fordtrucknut; Oct 11, 2011 at 04:18 PM.
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