Engine and Transmission Tech

tips, technology, tools and techniques related to vehicle driveline components

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lars49
Larry Barnes
Colorado Springs
(177 posts)

Registered:
06/11/2009 02:12PM

Main British Car:
1980 MGB GM LA1 3400 V6

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GM PCM harness shell disassembly
Posted by: lars49
Date: October 15, 2014 08:28PM

Does anyon know how to get the back of the PCM harness connector shell off? The harness is for the 340 engine. There are 2 locking tabs on each enn the need to be pressed together, but there is something that is holding it together in the middle. Is there a release tab I am missing?


Scott68B
Scott Costanzo
Columbus, Ohio
(562 posts)

Registered:
10/25/2007 11:30AM

Main British Car:
1968 MGB GM 5.3 LS4 V8

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Re: GM PCM harness shell disassembly
Posted by: Scott68B
Date: October 16, 2014 09:09PM

Larry,

Do you have a picture? Sounds similar to the 0411 plugs. The covers were a real pain to remove in one piece. I'm not putting them back on until I'm sure I'm done.


lars49
Larry Barnes
Colorado Springs
(177 posts)

Registered:
06/11/2009 02:12PM

Main British Car:
1980 MGB GM LA1 3400 V6

authors avatar
Re: GM PCM harness shell disassembly
Posted by: lars49
Date: October 17, 2014 11:54AM

Scott,

Yes, indeed a real PIA! I finally got them off. I had to partially cut one before I found out how to get them off. There are two slots in the middle that you have to insert a thin screwdriver and then lever to disengage two locking tabs in the middle of the cover. Picture to follow once I get some batteries for my camera.
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