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Old May 21, 2012 | 03:17 PM
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I have a 1982 coupe and 1st gear (automatic transmission) is making a knocking sound. once it shifts to second ,it is fine. Is this common and can there be some adjustments? I found a small leak and was low on fluid. Topped it off and let idol a bit but still making noise. Any suggestions? I also heard the idol adjustment may just needed to be adjusted as i turned it up a bit because of stalling issues.no carb-fuel injected.
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Old May 21, 2012 | 03:29 PM
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Is it making a knocking sound when driving, or when you shift from Park to Drive?
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Old May 21, 2012 | 04:37 PM
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The first gear knocking sound is probably a pinion bushing on the rear. If you're sure it's the trans drop the pan and see what you find.
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Old May 21, 2012 | 05:39 PM
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Originally Posted by 68sbShark
Is it making a knocking sound when driving, or when you shift from Park to Drive?
just when driving and just first gear
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Old May 22, 2012 | 02:00 AM
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initially it made a knocking sound in reverse but was only slight. I had also noticed a clunking sound the last few days before initial problem when shifting . My thought that it was due to the higher idol adjustment.
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Old May 23, 2012 | 12:49 AM
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sounds internal to me the low and reev roller clutch (sprag) works in low and rreverse the reverse clutches also ingage the early 700r4s had a weak roller clutch assembly trans will have to be removed abnd dissambiled to get to it if bad replace with a 1987 -up sprag and center support
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Old May 23, 2012 | 02:03 AM
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ok ty i will look into that
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