4l60e delayed 2-3 shift
Thread Starter
Teching In
Joined: Jun 2022
Posts: 25
Likes: 2
Solved!!! So this is a good one. I was so frustrated I changed the trans with a completely different unit. I had the exact same delayed 2-3 shift. I was about ready to take it out again but then my inner mad scientist took over. I was getting the command to shift to 3rd on the scan tool so I assumed the problem had to be in the trans. But then I started to wonder if the ECM was actually making the shift cleanly at the quad driver. I made a harness to manually shift the trans and it shifts clean and firm in every gear. A guy named Clinebarger on a different forum mentioned checking the ecm with a scope, thats what gave me the idea to check the 2-3 solenoid electrical release. It cost me some money to rebuild the second trans, but I learned something. I'm also 100 percent sure I can put the first trans back together and have one sitting for the next job. FYI the hanging solenoid most likely caused the burnt 3-4 in the vehicle when it came in. Thank you everyone who helped. I hope this helps someone else as well.
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Joined: Mar 2023
Posts: 1,824
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From: BERWICK PA
https://www.sonnax.com/tech_resource...a-bad-computer I should have posted this before and didnt think of it sorry,
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Frank formerly of Performabuilt, Now just me, What can I build for you today? Call or message me. Click sig pic for my facebook
Frank formerly of Performabuilt, Now just me, What can I build for you today? Call or message me. Click sig pic for my facebook
Thread Starter
Teching In
Joined: Jun 2022
Posts: 25
Likes: 2
https://www.sonnax.com/tech_resource...a-bad-computer I should have posted this before and didnt think of it sorry,
LS1Tech Sponsor
Joined: Mar 2023
Posts: 1,824
Likes: 1,162
From: BERWICK PA
