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Thanks for the help guys... And the entertainment. I don't know a lot, but I'll keep checking the site to see if I can offer anything helpful.

 

Don't do this. The B12 will eventually eat the organic material in the EGR valve diaphram.

You are not cleaning the "working" side of the system - wrong side...

If you could get the B12 past the EBR valve so that it flowed through the egr passages into the intake, you would likely reduce the probability of the EGR inlet ports clogging.

Doing what you have been doing is a waste of perfectly good B12.

Steve

 

Sorry but I said some might disagree with what he(the mechanic) told me but I won't do it any more.

 

carbon built up inside the port clog it up causing it to keep the check engine light on.... i just had this problem done on my 95 t bird 4.6 at the dealer .. im tryin to figure out how to do it myself on my 99 f-150 4.6 been there i got your answer...