Transmission rattle. 2006 Express 6.0ltr
#1
CF Beginner
Thread Starter
Transmission rattle. 2006 Express 6.0ltr
The Express I have has a noisy mechanical rattle from the mid part of the transmission, forward of the pan. It rattles on tickover when in Park or Neutral. In gear and when the truck moves, the noise goes away. Photo below, anyone any ideas what this rattle could be? Also, where would I find the info that would give me the model number/type? It's a 4 speed auto
Last edited by Karlos Fandango; August 20th, 2018 at 8:52 AM. Reason: Additional question
#2
CF Senior Member
#3
CF Beginner
Thread Starter
Thanks for the build spec advice Twscarp I shall give them a shot to get the spec. When I highlight over my VIN spec on GMPartsGiant.com, it comes up with 4-speed autmatic transmission, THM-R2(4L80-E) I'm guessing this might be a variant of the model you suggested?
No ideas on the rattle from the cetral part of the 'box though?
No ideas on the rattle from the cetral part of the 'box though?
#4
The only parts forward of the pan are the torque converter and flywheel. My bell housing has two inspection ports, which are good places to shine a light and see what's going on. Failing that, you're probably looking at dropping the tranny.