Expert: Sean Halliday - 1/2/2008

Question
#6 cylinder is not getting fuel through the injector / How do I un clog this ? Thanks Ron Smith /Little Rock

Answer
Its more likely the injector isnt working.You will need to remove it anyway to test it.It will involve removng that side rail of injectors and possibly both sides.From experience removing one side or the other,the injectors may leak if you loosen any part of them so best to service all of them at once to be sure.That includes replacing the O rings and any seals that come with the kit.If you want to try and fit one only then loosen the side rail and try to lift it out with out too much pulling on the other 3.As your car is a continuous injection,its electrical so it is unlikely to be clogged but try it anyway.Set up a test with a 12v supply and see if it allows fuel through.Hook up the wires to the plug in.Unclogging is simply using a needle through the hole.See if you get any dirt out but im betting its failed.I assume it runs on 7 cylinders and this is why you want to clean it?Dry plug and good spark?