4l65e multiple codes

Max persson

Original poster
Member
Apr 8, 2019
1
Australia
Hello from Australia I have no 3rd or 4th gear the truck is 2004 vy Holden ss 5.7l 4l65e same as a 2004 Gto made in same factory codes are
P0740
P0758
P0785
P0753
P0748
Obviously all these faults are related
Reverse good 1st good changes to second good then 3rd just free revs
Checked fuses all good
Have power at the trans plug on pink wire
I suppose I should unplug the ecu and ohms test back to each solinoid ???
 

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mrrsm

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Oct 22, 2015
7,642
Tampa Bay Area
Welcome to GMT Nation ...from "The Land Down Under"

Click on: Watch this video on YouTube

This video from @MAY03LT might cover some if not all of these problematic "cluster" of codes:

 
Last edited:

Mooseman

Moderator
Dec 4, 2011
25,262
Ottawa, ON

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