Okay yeah it's that lockup, I don't feel the lock up in my truck anymore. After the first rebuild it was locking up at 45 then 3 days after that it stopped locking up.

 

Hate that you're having all this trouble but it sounds like a tuning or issue with the trans.

 

It's the transmission, everything with the tuning was fine before the rebuild. I left it at this Rapid Motorsports in the morning so he could "fix" it, but I don't even think this guy built it right. I mean come on, first 3 days after the rebuild and it began slipping again and giving me a check engine light for a malfunctioning solenoid.

 

Hate to suggest this but maybe it's time to cut your losses with him and go to a proven vendor.

I'm more than happy with my Level 7 from RPM.

 

That's what I was thinking.... But that's a good chunk of cash thrown away... Ive been wanting to ask for a refund.

 

That's something you can do, for sure.

Or if he says no, see if he'll meet you in the middle.

 

Yeah, thanks for the support guys. I appreciate it.

 

When you say its shifting at 10,20 and 30 mph is that just normal cruising through a neighborhood or whatever??? Only time it should shift like that is if youre just kinda tooling ariund with no/hardly any throttle I am having an issue with my 1-2 shift at anything above 35-40% throttle shifting at 26mph.... Even when i go wot it still shifts at 26mph... I have tried setting the 1-2 to 40 mph, best ive been able to get since i swapped converters in the old trans(when this started) was about 32mph think getting me is it wont go over 3800 or so rpm.... Could only imagine what thsi truck is going to feel like once i get this little hiccup figured out.... But my lockup is like madmann said... A thump and takes a good bit or a downshift to get out of it......

 

Very light throttle is the way I drive hahaha. I do it usually when the roads aren't busy. Also I hope you figure out what's going on with yours. Do you tune your own vehicles?

 

Starting to.... Have had hptuners for maybe two months, halfass started the tune on my yukon before i realized i have a bad cat thats skewing my fuel trims.... Couldnt figure out at first why i had one bank that was constantly running about -3.9% ltft....other would be perfect.... Smoked for vacuum leaks, nothing... Swapped injectors around, no change..... Finally had a friend tell me my exhaust smelled like rotten eggs(i cant smell anything unless its fairly strong odor).... So at this point i know everything is fairly sound with the engine at least.... Just trying get money together for set of headers and cats for the yukon...