8/31/2023 0 Comments Piezo injector conversion lb7![]() Start by removing the heater return hose from the aluminum heater return line. The only ones you need to remove are the heater lines. Now remove the tube from the truck.Ĩ.Now you can begin to remove the coolant lines. This way the boot on the intake manifold is out of your way and the elbow is still attached to the Intercooler which makes realignment easier. I loosen the clamp on the intake manifold side and the clamp on the CAC tube itself near the intercooler. This is personal preference and they are a little different between years.ħ.Next remove the passenger side CAC Tube using an 11mm deep well. The Box can stay it won’t be in the way.Ħ.You may also find it easier to swing the a/c condenser out of the way as well by removing the belt, then the 4 bolts using a 15mm then the two electrical connectors and then swinging it up and out of the way laying it onto the battery. The reason for doing this is so that you don’t make a mess when you remove the coolant lines later on.ĥ.Remove the intake from the truck using a 5/16 nut driver. It does not need to be very tight it is plastic and will break. Once drained reinstall the plug and tighten. ![]() Removing the coolant overflow cap will drain it quickly if you have a good way to channel the fluid into a clean pail. You just made your injector replacement a lot less stressful.Ģ.Start by slightly lifting the truck and removing the front wheels with the 7/8 socket.ģ.Now remove the fender liners by removing all of the body clips, Christmas tree plugs and wiring harnesses.Ĥ.Now drain the radiator by removing the drain plug near the CAC tube. Rest it on your head and using one hand bring the spring up and line up the hole, then insert the bolt and put on the nut. Now stand the hood nearly straight up and down but leaning forward just a touch. I find it easiest to support the hood with me head then remove the bolt as you will need both hands for the next part. Do this on both sides, don’t worry the bolt will hold the hood up (usually don’t sue me if it falls on you) now carefully lift the hood as you remove the bolt then hold the hood as you walk to the other side to remove the bolt on that side. To do this, open the hood all the way then using a 13mm, remove the nut on the bolt that connects the spring to the hood. This only takes about 2 minutes and will make your life easier for any project when you’re under the hood. You will also want to put the hood in the service position. This writeup is far from done, But for now I put it up so a couple of people who requested it can see it.ġ.The first thing you do with almost any project is disconnect the batteries just to be safe. Ill add more info to it and clean it up a bit when I get home and can actually look at a truck. Keep in mind this write-up isn’t quite done yet. In addition I also like to replace the two gaskets for the banjo bolts on the FICM. You will also need either Right Stuff Gasket Maker or GM sealant. These are $27 each from Pensacola diesel and do one side of the motor. You will also need an injector install kit. There are arguments both ways but they are cheaper and show up to your door right away. The Pensacola ones are Reman’d by them and are $150 each. The GM Remans are actual Bosch Remans and are about $350 from GM each. You can get injectors from gm, Pensacola Diesel and other places. If your truck is within this coverage then take it to the dealership and have them replace your injectors. ![]() The policy is for trucks that have less than 7 years or 200,000 miles on them after the date they were put in service. How To Replace LB7 Injectors Injector failure is a common issue on LB7 trucks, and as the years go on more and more trucks grow out of the special service policy.
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