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Fuel Injectors

7K views 9 replies 5 participants last post by  dwkingmotorsports 
#1 ·
Hey folks,

My father in law wanted me to find out some info on replacing to fuel injectors on a 2001 Silverado.

Does anybody have an article or instructions or anything that would help us?

Thanks to everyone.
 
#2 ·
I looked through the how-to articles but there's none in there yet. You could be the first to post on this!

For a gas engine, fuel injectors aren't that hard to do. Just make sure you depresurize the fuel system befoe working on it. Do this by pulling the fuel pump fuse while the engine is running and let it stall out.

And welcome aboard!
 
#4 ·
I've done some research into this... they sound like a real pain in the butt to do. Paying a shop to do it usually runs $3000-$5000, and it's mostly labor. Sorry for the bad news; but keep us posted on if you decide to tackle it!
 
#6 ·
We're talking thousands, not hundreds. I don't know how much the injectors are themselves, but that was the price I was told. Who knows, maybe you can save some serious $$$ and do it yourself, depending on how hard it is.
 
#7 ·
I did the injectors on a BMW. Yes, they were a pain in the butt. But it's a doable job. The hardest part was getting the new injectors back into the fuel rail.
 
#8 ·
Here is the basic procedure.
  • Drain the coolant from the radiator into a container, and seal the container for later use. Remove the cable from the negative battery terminal with a socket wrench. Detach the electrical connector for the air inlet duct from the left side of the turbocharger. Remove the electrical connectors from the main wiring harness on the engine. Disconnect the electrical connector from the barometric sensor.[/*]
  • Remove the clip on the engine wiring harness, and disconnect the bracket for the harness with a socket wrench. Detach the electrical connector for the glow plug controller, and remove the positive crankcase ventilation hose from the crankcase.[/*]
  • Disconnect the outlet duct for the air cleaner on the right side of the engine with a socket wrench. Release the clamp on the hose to the outlet duct, and disconnect the hose from the outlet duct. Remove the fuel filter and its bracket from the engine. Disconnect the control module from the fuel injectors.[/*]
  • Blow debris away from the fuel injectors and fuel lines with compressed air. Clean the fuel lines and fittings with a clean shop cloth. Remove the fuel lines from the fuel injectors and disconnect the electrical wiring from the fuel injectors.[/*]
  • Remove the mounting bolts for the fuel injector bracket with a socket wrench. Connect injector removal tool J-46594 to the bolt hole on the fuel injector bracket. Pull the injector removal tool away from the fuel injector with a flare nut wrench to remove the fuel injector. Disconnect the injector removal tool from the fuel injector. Replace the copper washer and O-rings on the fuel injector if necessary.[/*]
  • Install the new fuel injector, and fasten the mounting bolts for the fuel injector bracket by hand. Tighten the mounting bolts to 22 foot-pounds with a torque wrench. Attach the electrical wiring for the fuel injectors. Connect the fuel lines to the fuel injectors, and attach the clips to the fuel lines. Tighten the retaining nuts for the fuel lines to 30 foot-pounds with a torque wrench.[/*]
  • Connect the remaining components by performing steps one through three in reverse order. Replace the coolant in the radiator.[/*]
 
#9 ·
^^ That actually makes it sound pretty easy!
Other than the one you mentioned, are any other special tools required? Do you happen to have any pictures of the procedure?
 
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