between 40-70 mph and accelerate
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2004 Cadillac Escalade Question: between 40-70 mph and accelerate the engine seems like it is missing or hesitate
Answer #1cardocIII from Gillespie's Auto Service, November 20, 2013, 11:34Master
Some transmission torque convertor clutch engagement, disengagement can feel very similar to a misfire. Do you have a check engine light on? Has anyone tried to pull codes from the system?
If this is a misfire the system should be logging misfire counts and that can be seen in the scan data. Plus a tech can override the TCC and pressure solenoid controls to prove if the problem is actually inside the transmission. Get this to a shop and let us know what they find.
Replyattyboy, November 21, 2013, 09:06Rookie
Thank you for getting back to me, I am not a wealthy man but I am a pretty good gear head, is overriding the TCC something I can do myself to see if this is the problem before I take it to a shop?
Thanks again for your help.
ReplycardocIII, November 21, 2013, 14:31Master
Its possible to do if you have a scan tool capable of making the bi-directional commands to the computer. The TCC is normally duty cycle controlled, in otherwords its never turned all the way "on". That means you cannot just ground it for testing, that can cause damage. But if you command it to an 80-90% on command, and the symptom is abated, or even dissapears, then you have made a step on down the diagnostic routine. (The TCC is usually operated anywhere from 35% to 55%)