How To: DIY - Injector cleaning
This is a great way to clean your injectors and improve your balance rates.
First go to your gm dealer and buy the GM upper engine fuel injector cleaner p/n 88861802, about 15 bucks. This CAN NOT be run through the fuel tank. To run this cleaner you have to use the quick disconnects at the rear of the engine.
1. Remove the quick disconnects at the rear of the engine, you will need a set of quick disconnect line tools. the return line is 3/8 and the suction line is 1/2.
2. Once lines are disconnected, install rubber fuel hose to the lines with hose clamps. You will need 3/8 hose and 1/2, about 5 ft of each.
3. use 1/2 gallon of clean diesel fuel and mix 13 oz. of the injector cleaner in a container (I used an old rotella 1 gal. bottle)
4. put both the return and suction lines into the container and place container out of the way of engine. (sat mine on a step ladder next to truck). you can set it on the floor but will need about 8-10 ft of hose.
5. start the engine, check for leaks. run all of the the diesel fuel in the container out, will take time. (mine sat at idle for 1.5 hours). if the truck dies, no big deal, just prime it once you reconnect the fuel lines.
6. once fuel is gone, reconnect the fuel lines, should hear a snap. and done. make sure to check for leaks when finished.
hope this helps some people. my balance rates are much better now, and the engine runs much smoother. maybe try this first if you think you have an injector going bad.
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