thepuzzlemaster
08-13-2022, 03:10 PM
I had a lift kit installed on my van, and since then, I've noticed some new sounds that seem to be related to coasting.
Sound 1:
Before the engine has warmed up, when coasting to a stop from 2nd or 3rd gear, there is a deep rumbling sound. It can get kind of loud, and does in some ways feel like the van is shaking a bit while it happens. It never seems to happen once the van has warmed up though. I'm not sure if this is just some sort of resonance with the new shocks? But it definitely didn't happen before the lift. Sometimes this sound is more severe than other times. Although I'm not sure what causes the difference. Might just be the style of driving based on how many red lights I hit or the speed limit of the streets I'm on before the van has warmed up.
Sound 2:
This sound is really only audible when driving at speed on the highway. When I depress slightly on the gas pedal to coast a bit, I can hear this kind of wooshing sound. It sounds kind of like it's coming from the middle of the van both front-to-back and left-to-right. If I engage the engine by stepping more on the gas pedal it goes away. And if I depress the gas pedal fully, and fully coast, it sometimes goes away from that as well. But also sometimes doesn't. This happens no matter if the engine has warmed up or not. And it happens at slower speeds as well, but it is not nearly as audible at slower speeds.
Anyone have any thoughts what might be causing these?
Sound 1:
Before the engine has warmed up, when coasting to a stop from 2nd or 3rd gear, there is a deep rumbling sound. It can get kind of loud, and does in some ways feel like the van is shaking a bit while it happens. It never seems to happen once the van has warmed up though. I'm not sure if this is just some sort of resonance with the new shocks? But it definitely didn't happen before the lift. Sometimes this sound is more severe than other times. Although I'm not sure what causes the difference. Might just be the style of driving based on how many red lights I hit or the speed limit of the streets I'm on before the van has warmed up.
Sound 2:
This sound is really only audible when driving at speed on the highway. When I depress slightly on the gas pedal to coast a bit, I can hear this kind of wooshing sound. It sounds kind of like it's coming from the middle of the van both front-to-back and left-to-right. If I engage the engine by stepping more on the gas pedal it goes away. And if I depress the gas pedal fully, and fully coast, it sometimes goes away from that as well. But also sometimes doesn't. This happens no matter if the engine has warmed up or not. And it happens at slower speeds as well, but it is not nearly as audible at slower speeds.
Anyone have any thoughts what might be causing these?