last week while driving i had a check engine light come on, so I pulled over to read it with my superchips tuner it showed up as P1757. which is the governor pressure solenoid. When I got home i called the shop where i get got it rebult approx. 14,000 miles ago. he said bring it in and he would check it out. so i dropped it off so he could drive it for a day tested it and he could not get it to throw the code. He also noticed that the convertor would lock and unlock at light throddle. I told him i had a BD doide harness kit on it and it did help and I also pay close attention to the grounds. He told me the ONLY FIX was to remove the negative wire that goes from the alternator to the battery from the wire loom that runs infront of the motor just below the valve cover. INSTRUCTIONS: follow the black W/yellow stripped wire from the neg. bat. post to the alternator it will run into a large wire loom in front of the motor. remove it entirely from this loom it will run into 3 16gauge wires blck with yellow strips at the end. now seperate this wire and zip tie it awy from the large loom. My mechanic zip tied mine to the radiator hose.and over the top of the alternator to the neg bat. post.. This fix has made a HUGE difference could not get it to unlock since this was done. he said the wires in the large loom are postive and it causes noise in the lock up circiut. sorry so long post.

 

Hmmm, i may try this to remove some squeal in my radio as well. I´ve done everything else.

 

I took some foil and put it on the wire coming off the alternator the neg. ground going to the clip thats by the bottom of passenger side battery,and wrappes it with electrical tape. Then took zippy ties to the harness for the alternator and ran them through the holes on the alternator bracket and tightened them pulling the bunch of wires in that harness closer to the bottom side of bracket,call me lucky but this fixed 75% of the tcc lockup on my trans,fixed the buzz in radio,the other 25% of the trans. issue was new grounds for the batterys cables if you will just my 2 cents

 

hey Chad, I did the same thing also had the BD doide harness installed, but i would still have problems with convertor not locking up at certain times and i do pay close attention to grounds! I was told by my mechanic that you have to completely isolate the alternator wire and the only way is to remove it from the big wire loom in front of the valve cover. All I can say say is to try it, my truck is so much better since.

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hey RAWillaims, have you tried this yet? I believe this is the right fix completely separating neg and pos. wires. My truck is awesome now with how it shifts and it stays locked too.

 

Okay you talked me into it will try this aternoon and see what it changes

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well its like i put a shift kit in my trans. i even took the foil off the wire works pretty damn good!

 

Thanks for the post...I've done mine also. Only problem I had while taking the wire out I broke a small black and blue wire in the loom so had to splice it. Anyone happen to know what the black and blue wire is for (just curious if I have problems in the future I'll know where to look).

 

think it goes to ecm tape it up good

 

Ok, Thanks.

 

Haven't tried it yet, I just got home from vacation to be honest. I will look into it as soon as I can.

 

i think iam gunna try it as soon as i get some time