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05-14-2016, 03:40 PM | #1 |
Registered User
Join Date: Apr 2016
Location: New Hampshire
Posts: 7
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Transmission issue
I think I have a tranny issue. Started shifting at 3000 rpms,,, used to shift earlier but never payed attention to exactly when. 1982 GMC with a hydromatic 350 tranny. Any advise appreciated.
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05-15-2016, 09:04 AM | #2 |
Registered User
Join Date: Feb 2007
Location: Memphis MI
Posts: 1,851
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Re: Transmission issue
First stop, check the vacuum line to the modulator, attached and crack free.
__________________
1987 2 ton 1982 250/TH350 beater in progress Dad's 1981 3/4 L6 3 on tree posi and no options, awaiting restoration or scrapping Plus a mess o' tractors |
05-15-2016, 09:25 AM | #3 |
Registered User
Join Date: Apr 2016
Location: New Hampshire
Posts: 7
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Re: Transmission issue
I changed the modulator vacuum line over the winter while doing some maintenance.
I just ordered a new modulator,,, will be in at 4 today,,, will give that a shot. Will report back with the results. |
05-15-2016, 11:29 PM | #4 |
Registered User
Join Date: Apr 2016
Location: New Hampshire
Posts: 7
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Re: Transmission issue
Installed the new modulator,,, good as new. Thank You D13 for your response.
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