McKenzie Wilson
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- Jun 20, 2023
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I bought a used 2015 yukon slt with 164,000 miles on it back in October of 2022. It is a 6L80. I’ve drove about 12,000 miles since then, and just started having issues.
It started shuddering whenever I would give it slight throttle to keep up my speed. Typically in 5 or 6th gear. We had the transmission fluid flushed, changed, and a new filter put on. After this, the issue seemed to improve and it would only shudder when going up a hill giving it steady throttle to keep up my speed. Also, right before it starts shuddering the rpms will get just a little jumpy. This typically happens between 1400-1800 rpm’s. If I give it more gas and get the rpm’s up it will not shudder. Before changing the fluid it would shudder even on roads without an incline. So the fluid flush/ change definitely helped.
Anyways, we decided to add a tube of lubegard instant shudder fix to the transmission fluid. Since then it hasn’t shuddered once. We’ve drove it about 100 miles and a lot on mountain roads to test it out.
Has anyone had luck with the instant shudder fix? If so, for how long? I’m wondering if we should still go ahead and replace the torque converter? I travel a lot with my kids (2 under age 3) and I’d really prefer to not be stranded somewhere.
Even though the shuddering has subsided, I still feel like the rpm’s jump just a little when giving it steady gas to get up a hill. It’s definitely not bad like before though.
Anyone else experienced this? What are your suggestions?
It started shuddering whenever I would give it slight throttle to keep up my speed. Typically in 5 or 6th gear. We had the transmission fluid flushed, changed, and a new filter put on. After this, the issue seemed to improve and it would only shudder when going up a hill giving it steady throttle to keep up my speed. Also, right before it starts shuddering the rpms will get just a little jumpy. This typically happens between 1400-1800 rpm’s. If I give it more gas and get the rpm’s up it will not shudder. Before changing the fluid it would shudder even on roads without an incline. So the fluid flush/ change definitely helped.
Anyways, we decided to add a tube of lubegard instant shudder fix to the transmission fluid. Since then it hasn’t shuddered once. We’ve drove it about 100 miles and a lot on mountain roads to test it out.
Has anyone had luck with the instant shudder fix? If so, for how long? I’m wondering if we should still go ahead and replace the torque converter? I travel a lot with my kids (2 under age 3) and I’d really prefer to not be stranded somewhere.
Even though the shuddering has subsided, I still feel like the rpm’s jump just a little when giving it steady gas to get up a hill. It’s definitely not bad like before though.
Anyone else experienced this? What are your suggestions?
