My car is vibrating whenever I cruise and try to pick up speed
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Joined: Jan 2025
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My car is vibrating whenever I cruise and try to pick up speed
I need help figuring out what’s wrong with my car this has been killing me ever since I bought it. For example say I’m getting on the highway I hit 60mph but I have to let go off the gas cause of the person in front of me then whenever I try and reengage with the gas pedal again the car starts vibrating unless I slam the gas the car won’t stop vibrating. And this happens whenever I’m cruising also going uphill it vibrates a lot when accelerating. I changed sparks,coils, and intake manifold. My next move is going to be a tranny fluid change. Has anyone had this problem before. And this only
happens when I take a turn and try to accelerate or going up hill accelerating, orrrr when I am at cruising speeds trying to pick back up let’s say from 50-60 mph.
happens when I take a turn and try to accelerate or going up hill accelerating, orrrr when I am at cruising speeds trying to pick back up let’s say from 50-60 mph.
Super Member
Joined: May 2024
Posts: 505
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From: Northern Indiana
2014 c300 w204.080 3.5 v6
Sounds like three transmission slipping to me. You can try a lower gear and see if it vibrates also try too put in neutral thru the range you know it vibrates see if there vibration goes away.
Thread Starter
Newbie
Joined: Jan 2025
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Thread Starter
Newbie
Joined: Jan 2025
Posts: 6
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also if I slam the gas the car shifts and drives smooth so that’s why I’m not thinking it’s a bad tranny. Can bad or low tranny fluid cause this problem? Because I’m getting new fluids this werkend
Super Member
Joined: May 2024
Posts: 505
Likes: 123
From: Northern Indiana
2014 c300 w204.080 3.5 v6
Sounds like to meet that when you are at low load cruise speeds when the transmission is most likely in high gear and torque converter locked. I would say either the converter is slipping or overdrive use slipping. When you smash the gas there car will unlock the torque converter and downshift out of overdrive to give you more torque and power.
Those symptoms usually show up as a chatter/shudder of the car at cruise speeds that goes away when shifting into neutral or speeding up quickly
Those symptoms usually show up as a chatter/shudder of the car at cruise speeds that goes away when shifting into neutral or speeding up quickly
Thread Starter
Newbie
Joined: Jan 2025
Posts: 6
Likes: 1
Sounds like to meet that when you are at low load cruise speeds when the transmission is most likely in high gear and torque converter locked. I would say either the converter is slipping or overdrive use slipping. When you smash the gas there car will unlock the torque converter and downshift out of overdrive to give you more torque and power.
Those symptoms usually show up as a chatter/shudder of the car at cruise speeds that goes away when shifting into neutral or speeding up quickly
Those symptoms usually show up as a chatter/shudder of the car at cruise speeds that goes away when shifting into neutral or speeding up quickly
could a tranny flush and new fluid fix the problem maybe? Because the car only has 60k miles no way the torque converter went bad
