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Old 01-28-2014, 09:07 AM   #3
67Steven
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Join Date: Mar 2007
Location: Oregon City
Posts: 228
Re: 6L80 transmission whine at shut-off

Quote:
Originally Posted by BR3W CITY View Post
Have you hooked it up to HPT or a pro-style scanner that can read/command trans codes?

Any chance your harness is pinned-out wrong and one of the solenoids is getting a signal it shouldn't?

I do not have access to one of those readers, but I guess I can try to locate a mechanic with one to try that out.

As far as wiring, it is the original harness, and nothing was changed at the transmission, so I am going to speculate that it is okay. I am just worried I will need to replace the solenoid pack/TCM unit.
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