p0740 p0753 p0758 p0785 p2761

[Mrrcx]

New to the forum, looking forward to some good discussions.
2005 Silverado 1500 2wd.
5.3 V8 and 4L60E that has been upconverted to 4L65E
Just installed a rebuilt trans, and am getting this cluster of codes
p0740
p0753
p0758
p0785
p2761
Truck had 0 issues before the trans came out.

Where do I start?
What did I break?

 

[Zeplive]

New to the forum, looking forward to some good discussions.
2005 Silverado 1500 2wd.
5.3 V8 and 4L60E that has been upconverted to 4L65E
Just installed a rebuilt trans, and am getting this cluster of codes
p0740
p0753
p0758
p0785
p2761
Truck had 0 issues before the trans came out.

Where do I start?
What did I break?

Dod
Did you figure it out what did you do to fixit

 

[mrrsm]

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[Mooseman]

Either an ignition switch as mentioned above or a wiring, ground or power issue.

 

[tylervet]

Thank you for the helpful post. I have a 2004 Suburban that was posting codes p0758 p0753 p0740 p0785 p2761. Changing the ignition switch was all it took to fix it. $33 from Napa.