Jump to content

Random Tcc Lockup Issue


Recommended Posts

i recently took my 06 crew vmax to florida on vacation, vacay was great, truck did awesome 17.1 mpg's at 80 mph. I did notice that after a while atleast 150 miles if i went 80mph the trans would occasionally come out of lockup it would always reengage but not for atleast 3 miles i didn't do it all the time, more often in hilly areas, if i went 70mph it would never occur, i could not pinpoint when it would do it, i couldnt predict it aside from the variation in speed.

this truck at 80 is turning 2500 to 2600 rpm with the 4.10 and 285 50 20 tire, i know these trucks have to small of a factory trans cooler, so i need to get a bigger one, but i have made alot of valvebody changes, vette servo, sonnax afl, sonnax boost valve, and shift kit. the trans is original, the truck is strong and i know there has to be a weak link i just thought the factory carbon woven lockup clutch in the converter was bulletproof. So my question is this a programming issue [ the truck has had all the factory trans features turned off/ reprogrammed] or do i need a new converter

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...