surging problem
#1
surging problem
I have a surgeing problem. when driving and the truck and it starts lugging down I give it little gas and the turbo starts to spool and dumps on and off till i really give it throttle. only on light turbo boost and when the truck is lugging down. I think if the truck would just shift down a gear and not try to lugg way down this wouldnt be a problem. the truck also dumps boost under acceleration when shifting from 3rd to 4th gear sometimes. does anyone else have this problem and if so what need to be done to fix it. thx
#4
#6
Mine is 04/11. My problems:
1. Boost drop out causing surging at low acceleration when starting up hill.
2. Low fuel economy on highway. Very eratic. One time 15 - next time 17 - next time 19.
3. Transmission hard shift sometimes (it is not often but sometimes it is there).
4. Trailer Sway Control dragging brakes at highway speed and causing low fuel economy (not always but I did verify once).
1. Boost drop out causing surging at low acceleration when starting up hill.
2. Low fuel economy on highway. Very eratic. One time 15 - next time 17 - next time 19.
3. Transmission hard shift sometimes (it is not often but sometimes it is there).
4. Trailer Sway Control dragging brakes at highway speed and causing low fuel economy (not always but I did verify once).
#7
Calibration; would that be just a reflash or changing a mechanical part?
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#9
#11
#13
Update on mine i replaced the turbo solenoid myself $27.00 and 5 mins and i have not had the surging problem so far. I had the kam cleard and pcm reprogrammed be fore i did the replacement and that didnt work. I was also noticing the turbos dropping boost between shift points more often and now hardly at all.