2001 Chevy Astro vibration between 45 and 65 mph

CRAWDADDY05

MEMBER
2001 CHEVROLET ASTRO
6 CYL
AWD
AUTOMATIC
190,000 MILES

I have having vibration problems when speeds are between 45 and 65 mph. The vibration is intermitten and when I get on the highway at speeds over 70 the vibration goes away. I have replaced the u-joints in both drive shafts and have new tires all the way around. The vibration shakes the whole van. Not sure where to go from here. Any advice would be wonderful.

Tuesday, October 12th, 2010 AT 6:36 PM

3 Replies

MHPAUTOS

MECHANIC
31,937 POSTS

Hi there,

Check the transmission mounts, rear suspension bushes and check the tail shaft for signs of damage this could be out of balance as well, is this a single or 2 piece shaft?

Mark (mhpautos)

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Wednesday, October 13th, 2010 AT 4:44 AM

CRAWDADDY05

MEMBER
3 POSTS

(tail shaft for signs of damage this could be out of balance as well, is this a single or 2 piece shaft? )

do u mean the rear drive shaft? I had that out when I replaced the u joints it looked fine. I will check the tranny mounts and rear suspension bushings. I have new shocks on the front. Could rear shocks be an issue with vibration? Also have been doing some research and found that the cv joints go out in these vans and if so could it vibrate intermittently? Just curious to figure this out. If I dont do it soon it will be forced to take it to a shop. Thanks for replying

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Tuesday, October 19th, 2010 AT 8:01 PM

MHPAUTOS