How do you replace fuel injectors? - F150online Forums



How do you replace fuel injectors?

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  #1  
Old 07-31-2007, 11:44 AM
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How do you replace fuel injectors?

What is the procedure for removing and replacing fuel injectors?

My SCed '97 4.6L is about to enjoy a (hopefully) significant boost in performance when I receive the 90mm MAF, 42# injectors and custom tuned XCal2 from Troyer in a couple days. I just don't have a clue how to change out the injectors.
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Old 07-31-2007, 12:26 PM
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Not much to really - disconnect the battery , take the TB cover off, take off the intake,disconnect the electrical connectors unbolt the the fuel rail, bleed the pressure via schrader valve on the rail, lay some rags/paper towel around the injectors to catch residual fuel - pull the rail.

Pull the injectors that stick in the rail out , just pull them , there held in with and o-ring.

Now when you pull the injectors , make sure you have all the hats - sometimes the hats will come off and stick in the manifold.

Revers order for install.

Good Luck
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Old 07-31-2007, 12:31 PM
JMC
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A little bit of engine oil on the injector O rings help the injectors slide back into place a lot easier.


JMC
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Old 07-31-2007, 12:43 PM
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XLNT! Thanks!!
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