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Old 01-12-2021, 05:42 PM   #1
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Join Date: Nov 2018
Location: austin Texas
Posts: 37
vibration maintaining cruising speed

hi fellas

68 c10

the truck is running great but if i'm cruising +-60mph with about 1/8 throttle to maintain speed i get a vibration that feels like i'm running over small shoulder bumps. if i let off the gas it goes away, if i give it a touch of gas it goes away.
i can't tell if its the engine or transmission.
any ideas what to look for? or just avoid 1.8 throttle position?
thanks steve

**** i'm thinking it's getting lean between idle circuit to cruise

Last edited by steeeeeve; 01-12-2021 at 06:24 PM.
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