power brake

[rick miller]

i hope i am at the right place here.i am having problems with my exaustbrake on my 96 powerstroke 7.3 i had it installed in my truck in 1999 or2000 at ford motor co. their is a toggle switch on the dash.when it is flipped on it closes the wastegate.when you push on the throttal it opens back up. that is the way it works normally.the problem i am having is it dose not close and hold back truck after the engine reaches normal opperating temp.if anyone could help me with this problem i would apprechieate it.thanks very much.

[RRonning1984]

Sounds to me like the diode between the PCM, the EBPV, and the toggle switch either wasent installed or has gone bad. Look for it in the wires by the EBPV plug in the engine valley were all the wires are spliced together. A lot of people skimp on installing this diode because it is so tight of an area to work in! If it is not there or it has gone bad then it it will get the signals from the ECM to act like it normally should!