BAC Forum
General Boards => Technical Support => Topic started by: Adam Hicklin on March 28, 2013, 03:25:13 AM
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I need to disconnect The ECM on a Cat 12 to do some welding. I've located the two big multi-wire plugs on the passenger side of the engine. Fro the life of me I can't pull them out of the connector. Ken at BCS said they should just pull apart, but no can do. Any tricks? Suggestions? I was able to get a some channel locks on the lower plug, but the housing is so brittle, I'm afraid I'll break it. I'm open to suggestions.
1998 Marquis
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Adam,
I have never had to unplug the ECM on a C-12, but in my other life (auto mechanic) all of the ECMs that I serviced had some kind of retainer to ensure that the connector always stayed in place. Some had an external retainer and some had a small bolt in the center of the connector that bolted the connector to the ECM.
Gerald
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Thanks Gerald. I can't feel anything around the plug which would indicate any type of retainer or bolt. I'll certainly check again in the morning. It's in an awkward place and hard to get a hold of but the thing won't budge. Worse case scenario, if I can't unplug it, any suggestions for going forward with the weld?
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If not mistaken there should be a "ring" on the outside of the plug that must be unscrewed. Then it will pull apart.
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Tom, these two plug are rectangular.
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Sorry Adam wrong series. The rectangle plugs have a catch mechanism that has to be released. Some of them actually have a bolt securing them together. Send a picture if you can.