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Old 07-22-2023, 03:54 PM   #1
HeavyHauler
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Checking Transmission fluid level in 400 turbo

Do you check the transmission fluid level in a Chevy TH400 turbo by checking it when the engine is warm and truck is idling in neutral?
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Old 07-22-2023, 03:56 PM   #2
leddzepp
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Re: Checking Transmission fluid level in 400 turbo

Yes
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Old 07-22-2023, 05:18 PM   #3
Steeveedee
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Re: Checking Transmission fluid level in 400 turbo

Also should be on reasonably level ground.
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Old 07-23-2023, 01:22 AM   #4
kwmech
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Re: Checking Transmission fluid level in 400 turbo

Was working years ago with a trans shop and he always checked the level while in gear also. Dunno if it matters much. I was taught to check in neutral also
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Old 07-24-2023, 11:25 AM   #5
70STOVEBOLT
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Re: Checking Transmission fluid level in 400 turbo

I believe it should be checked with the transmission in park, should say right on the dipstick.
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Old 07-24-2023, 04:08 PM   #6
Stocker
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Re: Checking Transmission fluid level in 400 turbo

Neutral or park, I don't think it matters. I believe the only difference is the engagement (or not) of the parking pawl inside the transmission.
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