Question about 2003 GMC Sierra 2500HD
This is a 2003 6.6 and I can't seem to get out the injectors.
There is a special tool for removing the injectors that the dealerships have. However, you may be able to remove them by using a long pry bar. The injector will pop up when you get them loose. One special note. Sometimes the injector cup will come out with the injector. Try to remove the cup without damaging it. Get some injector cup o-rings and some red lock tight. Put the new o-rings on the cup and apply some grease to the o-rings. At the tip of the cup apply the lock tight. Push the cup into the injector hole and with a rubber hammer tap in down flush with the head. Replacing the injectors is a long and tedious job but take your time and remember where everything goes. Once you get everything back together, prime the fuel system until your arm gets tired and then prime it some more. Have someone crank the truck while you continue to prime the engine. Once the engine starts running, prime for about 30 seconds more and you should be good to go. I hope this has been helpful.
Posted on Jan 05, 2009
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Posted on Jan 02, 2017
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