Just had my trans built and added a FTI stall , hadn't even broke in the clutches before the engine got a fast paced tap ,that follows the RPMS, No oil pressure change ,no engine code,no loss of power . It always had a mild tap that would go away once it warmed up or you passed 2,000 rpms. Really hoping its the heads and not the engine . IS there a way to tell without pulling the covers ? If it is the engine I found a LQ9 so not the end of the world,that said I would rather rebuild the heads with a BTR stage 3 cam kit then change the engine . I will be adding a video soon



VIDEO ADDED!!!https://www.youtube.com/watch?v=fRoU...ature=youtu.be

 

Pull the covers. I had the same thing to happen and it ended up being a push rod

 

You didn't touch the motor, only Trans and now have this noise that is rpm dependent......flexplate/ torque converter bolt loose.

 

I dont think the trans had anything to do with it .it sound like the heads or the motor to me. im uploading the video now. took to my buddy shop he is not sure if its engine or heads bt he said its nothing on the trans

 

uploading a video now. if you wouldn't mind checking it out and giving me your thoughts . Im going to pull the covers as soon as i get time. ill be buying that BTR stage 3 kit to for it regardless if its head or engine in 1 case I use it to fix the ls1 in the other I have a cammed lq9 going in

 

Do a search, there's a ton of people who've had a similar issue where it sounds like valvetrain and it ends up being a loose TC or flex bolt. You said you didn't mess with the motor only the Trans and unless you're leaving out details like you hit the Rev limiter or something, stuff doesn't typically just break suddenly.

 

heres the video https://www.youtube.com/watch?v=fRoU...ature=youtu.be

AndI did nothing to the motor and only did 2 hard pulls since a doing the stall

 

Did yu notice it right after 1 of those 2 pulls? To me, it sounds pretty close to this:
https://m.youtube.com/watch?v=0-PvTuUNwWo

 

it seems doesnt seem near that load then that. NVM I just started it and its load as hell underneath. how do i check if thats it. i had a shop do the transmission ? nosie seems more towardsthe engine as far as i can tell

 

I've never had a loose one but I think you can tell from either the window on automatic bellhousings or you may have to drop the starter. It's hard as crap sometimes to tell specifically where a noise is coming from when a car is running especially if it's a modded v8. An El cheapo stethoscope can help isolate it, but if the Trans was the last thing done I'd be checking those bolts. There's a reason there's so many threads and videos about them being loose.

 

just orderd https://www.walmart.com/ip/ABN-Mecha...&wl13=&veh=sem

 

video from under the car