code 34 and lots of black smoke [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: code 34 and lots of black smoke


jcbrotz
07-12-2006, 11:42 AM
on my way to work yesterday ses came on I was coosting down a nice grade in 5th I downshifted to 4th and stepped on it and ses went off shifted a couple time ses blinked on and off. Mr. Paperclip told me code 34 I know this a a stepper motor fault but ?? is is it because I may have not installed the pump in the perfect position 11 months age or possibly something else. I will check the stepper for movement tomarrow but would like other things to check also. I'm just not sure it would have taken 11 months to show up if it was the pump but.

jcbrotz
07-13-2006, 09:53 AM
you guys got any ideas my stepper motor seems to be moving less but than 1/4 in. I moved the pump just a hair to the passanger side then took for a ride and the code 34 came back although not as frequent of blinking should I move some more looks like its almost straight up now. I also seem to be running a little lower temp. more like 170-180 compared to a normal 180-190?? could this have something to do with it??