Vibration/Noise when accelerating hard from Idle
I'm getting a vibration/growling noise on hard acceleration. I can feel it in my feet when I get on it hard. Did a three inch lift about three months ago had drive line vibration that was resolved with a transfer case drop. This is a totally different noise that just started last week. I checked that all bolts I touched when I installed the lift were tight. Checked motor mounts and tranny mount all looks good. Going to check flex plate and converter next. If anyone has any ideas of anything else I could check I would greatly appreciate it. Thanks
Re: Vibration/Noise when accelerating hard from Idle
The first thing I would look at is the exhaust hitting something. That and the torque converter bolts are the most common things
Re: Vibration/Noise when accelerating hard from Idle
Checked exhaust everything is tight and nothing is touching. Going to check converter bolts next.
Re: Vibration/Noise when accelerating hard from Idle
drop front drive shaft and go for a drive ..................
Re: Vibration/Noise when accelerating hard from Idle
Does the frequency of the vibration/growling seem to track the rpm ?
Condition of Front drive axle u-joints, unit bearings, and ring and pinion ?
Re: Vibration/Noise when accelerating hard from Idle
No it doesn't seem to follow RPMs it sounds more like drive train noise.
Re: Vibration/Noise when accelerating hard from Idle
Which transfer case do you have?
Re: Vibration/Noise when accelerating hard from Idle
Not sure. How can I tell?
1 Attachment(s)
Re: Vibration/Noise when accelerating hard from Idle
If it says "Full time" on the indicator for the t-case you have a np 242, if not then it's a np231. Found this handy image online to aid in my explanation.Attachment 9480
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Re: Vibration/Noise when accelerating hard from Idle
Thanks I guess I have an NP231.
Re: Vibration/Noise when accelerating hard from Idle
UPDATE: I dropped front driveshaft checked u-joints and took it for a ride, still had noise. Checked all of the flex plate bolts were tight, still have noise.
Re: Vibration/Noise when accelerating hard from Idle
Check the transmission mount. Someone had posted a video of, what I feel is your issue, and it ended up being a worn transmission mount. Mine had the vibration(not so much a noise) and that's what it was.
Re: Vibration/Noise when accelerating hard from Idle
Thanks mine looks good but I will try changing it.
Re: Vibration/Noise when accelerating hard from Idle
Changed the transmission mount and the vibration is gone. Thanks very much.