Shuttering trans or CV ?

T

tim1862

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So here's the deal, I have a 2005 Montana. Last winter my son went to pass someone and it started to shutter, almost feels like the engine is up against the fire wall but it's Not. This only happens under load. I can creep it around town and it doesn't happen unless I give it too much throttle. The vibration favors the driver side. So I lifted the driver wheel and rocked it hard! It didn't slip! I know the transmission has a dual chain in it but I figured if that had stretched or sheared off teeth then I probable wouldn't be able to move at all... Does this sound familiar to anyone??? The transmission seems to shift fine regardless of the vibration or not. It's definitely one or the other , trans or CV
 
it does not sound like an axel/cv , not to say it's not the tranny but could it be the engine missing under hard load ?
 
Not miss fire :(

I don't believe it's miss firing, this I'd definitively a mechanical vibration. I looked at schematics of the trans and I see a dual chain assembly internally. Additionally if I put a load to it with brake applied I will get kinda clunking effect as if something gives...
 
did you check for broken motor and transmission mounts?
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Did you have someone watch under the hood when you are applying a load with your foot on the brake and hear the sound?
 
yes in fact I did, it was me and I was on the ground, wheel on driver side
removed. The whole assembly moved some degree and that was why I
elected to replace the transmission mount just because. This changed nothing. Keep in mind that the origin of the sound eminates from the driver side. Does anyone know if the splines on the output shaft have a tendency
to strip? I still wonder if maybe the CV axle on the output side of the tranny
might be stripped.
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If you don't mind doing some work you can always jack it up and pull the axel out and look at the end splines .
 
ya thats next, I was hoping for a similar scenario that someone might
say "hey! that happened to me and heres what was needed to fix it"
I'm thinking thats not going to happen.
 
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