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noise manually downshifting 4L60E

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noise manually downshifting 4L60E

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Old

May 9, 2018 | 06:45 AM

#1

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noise manually downshifting 4L60E

I have a 93 Sonoma (4.3L) with a rebuilt 4L60E trans with about 20K on it. Sometimes i manually downshift if from OD to D if the engine is lugging in the low 40 mph's. As far as i know this is not bad for it but it's now making a noise when i do it... mostly a clunk. Wondering what the problem could be. It's still under warranty, so when i call i'd like to know more about what i'm talking about. Thank you in advance! I plan to check my u-joints to see if they're ok.

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May 9, 2018 | 07:11 AM

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i'd check the trans mount if it hasn't been replaced as well as motor mounts, u-joint, suspension related components.

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May 9, 2018 | 07:46 AM

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Thanks, that was extremely quick! I’ll post back if/when I figure anything out.

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Jun 9, 2018 | 06:10 PM

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Now what happens when i downshift from OD to D is absolutely nothing. Anyone know what went to hell in it? Thanks!

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