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06-25-2024, 11:24 PM | #1 |
Registered User
Join Date: Mar 2018
Location: Colchester IL
Posts: 294
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Re: How much vacuum for vacuum switch and TCC?
Thanks.
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07-03-2024, 10:44 PM | #2 |
Senior Member
Join Date: Nov 2022
Location: Kansas City
Posts: 496
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Re: How much vacuum for vacuum switch and TCC?
I made a wiring diagram in case anyone needs the info. I put on a time delay relay so it wouldn't cycle in and out of lockup repeatedly. I also put a light on there so I would know when lockup is engaged. I am going to move my vacuum switch down to 5 and 7. It does seem to go out of lockup too easily when on the highway just from minor accelerations that drop the vacuum to 7. Others may not need to ground their transmission pigtail if they have a pigtail. I have an 700r4 with a pigtail and it isn't grounded internally for me so I grounded it externally. So tweak this based on your setup.
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1971 C10 manual cab. 76 4x4 chassis. Cut short frame. Carbureted Blueprint 350, automatic 700r4. ~ James Last edited by K10-Kansas; 07-03-2024 at 11:08 PM. |
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