Question about Ford F-100

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Shifting issue Hi you had helped me with my tranny issue and I have been doin some digging alot of people are giving answers I dont think they know themselves, I had mentioned that I had cammed my truck did the intake all that stuff, I had forgot to mention that all the stuff I took off one of them was the old EGR valve, does tha valve have anything to do with modulator? and why it don't shift like it should, and if so can I block off one of the hoses or just route one of them si it's not on constant vacuum.

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If egr is stuck open, it can give you a low vacuum signal. Since its removed (and blocked off), there is no problem there. Yes, you can block off one line, then check which port on the modulator works best. (does the modulator hold vacuum? If its old, the diaphram inside may have failed)If so, there is nothing you can do but replace it. Can you manually shift (& downshift?) gears?
Are you absolutely sure that you got everything in the valve body correct when you installed the shift kit? even a small piece of debris can screw it all up!!

Posted on Jan 02, 2009

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