Whats causing this? .. W/video
09-04-2014, 10:34 PM
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Whats causing this? .. W/video
Like i said whats causing this?? Under easy acceleration the RPMs oscillate up and down .. U can feel the surge in acceleration ... Feels like either the DOD goin on and off or torque coverter having issues thats just my thoughts ...its shuttering and vibrating also.... What are your thoughts? Video is blurry til Bout half way thru then i got it to focus ... Its at this point if you listen good you can hear the shutter or vibrations everytime it revs up/accelerates... Like i said im pressing on the gas very lightly when this occurs... Tune is set back to stock and DOD is on although at steady cruise speeds at any MPH it does not seem like DOD is kicking on because i usually hear the pop in my headers and exhaust when it kicks off during acceleration .. Instead its doing whats in the video ... Give me your thoughts.....the shutter gets worse the longer you accelerate ... If you get on it it doesnt seem to do it ... Yet lol ... Thoughts .. IMG 0515 - YouTube
2nd video ... im really thinking its the ECM .. it hasnt acted right since the 6L80E swap.. its a second hand ECM i used and it has not read the cam sensor even after changing crank and cam sensors and getting relearn from dealer.. last advise i was given was get new ECM and flash it and see if it corrects the issues...
http://youtu.be/WvTiwjIOZJM
Last edited by BIGDADDY1969; 09-05-2014 at 05:45 AM. Reason: Combined two posts
09-06-2014, 04:35 AM
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couple different ones thats been on since the 6l80e swap and ecm swap(but no new ones with this issue i am having) ... cam actuator i think it says and also its not reading left o2 bank(i can get them i wrote them down and dont recall)...i have a thread on those issues already and have done continuity checks on them and they are all good .. i replaced cam and crank sensors also and still throws code.. all pointing to ecm being bad... it was a second hand one i got cheap and had it reflashed to my vin im using and like i said last thing to do on all trouble shooting write ups and advise ive gotten is replace ecm with a new one... only real problem i was having until now was hard starts and worse gas mileage than normal...
today i went in the stock tune and turned of DOD and the issue in the video is almost 100% gone...no video of that yet ..kinda re-affirming that the ecm is bad in my opinion
today i went in the stock tune and turned of DOD and the issue in the video is almost 100% gone...no video of that yet ..kinda re-affirming that the ecm is bad in my opinion
Last edited by BIGDADDY1969; 09-06-2014 at 05:13 AM.
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09-10-2014, 09:17 AM
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It doesnt sound like AFM mode to me, its sounds like the lock up is turning on/off. Do you have the tow/haul button enabled? If so try turning it on and see what happens