Lost

[UnderDogg]

Hello Guys. My 04 Yukon Denali xl 6.0 is doing this vibrating thing at about 30mph. Now I've added 4 gts. Of transmission fluid and also the dual bottle of stop leak. It happened this Saturday when I was on the highway and I punched it to go around a slow driving car but kept digging in because I love to do so. But after that literally immediately when I got off the highway 6 minutes later my acceleration had this jittery like vibrating feeling. It feels like t it's in the front of the vehicle because my dashboard shakes at a point. It starts at 30 but will stop at 36mph. I have driven faster than that since. It's my daily driver and I work 7mins away from home. Like I said earlier I just today pour in stop leak and two qts. Yesterday I poured in two qts just by themselves. Funny thing is that before I put anything in on yesterday I checked the dipstick and there was fluid on it, so how in the hell did it take basically 4qts and stopleak? Idk myself that's why I'm here talking about it. I've been building on this truck 2020 and it now has just over 178k. I've been saying that I wanted to replace the trans, but just not right not. Do you guys think that it is the trans or is it some other component with the AWD or...?

 

[B-train]

How did you check the trans? Idling, hot, on level ground in park?

Does the vibration change with RPM, or just speed?

Have you tried running it through lower gears (keeping it in 2nd, then 3rd) to eliminate 4th?

 

[Fless]

Do you feel the vibration in the steering wheel, or in the accelerator pedal? (Or as some posters write "peddle." LOL)

 

[89Suburban]

Do you feel the vibration in the steering wheel, or in the accelerator pedal? (Or as some posters write "peddle." LOL)

Or in the butt? Wheel speed? Driveline or RPM speed?

 

[89Suburban]

Hello Guys. My 04 Yukon Denali xl 6.0 is doing this vibrating thing at about 30mph. Now I've added 4 gts. Of transmission fluid and also the dual bottle of stop leak. It happened this Saturday when I was on the highway and I punched it to go around a slow driving car but kept digging in because I love to do so. But after that literally immediately when I got off the highway 6 minutes later my acceleration had this jittery like vibrating feeling. It feels like t it's in the front of the vehicle because my dashboard shakes at a point. It starts at 30 but will stop at 36mph. I have driven faster than that since. It's my daily driver and I work 7mins away from home. Like I said earlier I just today pour in stop leak and two qts. Yesterday I poured in two qts just by themselves. Funny thing is that before I put anything in on yesterday I checked the dipstick and there was fluid on it, so how in the hell did it take basically 4qts and stopleak? Idk myself that's why I'm here talking about it. I've been building on this truck 2020 and it now has just over 178k. I've been saying that I wanted to replace the trans, but just not right not. Do you guys think that it is the trans or is it some other component with the AWD or...?

That Stop Leak sh*t DONT WERK. Or if it does it will be worse afterwards.

 

[UnderDogg]

How did you check the trans? Idling, hot, on level ground in park?

Does the vibration change with RPM, or just speed?

Have you tried running it through lower gears (keeping it in 2nd, then 3rd) to eliminate 4th?

I checked it in a semi cold start in neutral (meaning I ran it stopped for about two hours started it again and then checked it). The vibration I can say goes with both rpm and mph, because at about 35mph is when the vibration starts. No I have not thought about running it in any other gears, but I will definitely do it today on my way home and report back.

 

[UnderDogg]

That Stop Leak sh*t DONT WERK. Or if it does it will be worse afterwards.

Ok noted

 

[UnderDogg]

Ok got it

 

[UnderDogg]

Do you feel the vibration in the steering wheel, or in the accelerator pedal? (Or as some posters write "peddle." LOL)

More in the peddle than anything

 

[RoadTrip]

It may just be that a motor mount snapped during your high speed pass.