yukonjon
Member
So heres the deal. I just put in a mega monster transmission last weekend. Went great and love it. Problem is my torque converter is coming in and out of lockup. It is a new torque converter. I have no check engine light and nothing else noticeable. Called monster and they are telling me to scan the computer for codes. The dealer says if there is no check engine light then there is no code. Monster tells me the code wont necessarily turn on the CEL. I just want a for sure answer on weather a tranny code will pop up without setting of the CEL. Im getting mixed answers from multiple people and was wondering if anyone knew for sure or had personal experience.
I have replaced the throttle position sensor already and looked at the obvious. Next will be speed sensor and brake switch but I want a clear answer on the code or not. Dealer is convinced it would set off a CEL but im not so sure now. This is in a 99 yukon with the 4L60-E tranny. Thanks guys
I have replaced the throttle position sensor already and looked at the obvious. Next will be speed sensor and brake switch but I want a clear answer on the code or not. Dealer is convinced it would set off a CEL but im not so sure now. This is in a 99 yukon with the 4L60-E tranny. Thanks guys