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Front End Shake at high speed under acceleration

7.3K views 7 replies 4 participants last post by  Bob Kontak  
#1 ·
I have an idea what this is, but want to see what others say (I've read several similar threads already, but I don't think it's tire balancing or shocks).

So 2005 Odyssey EXL with 155k on it and I'm driving it from Tulsa to Denver, average speeds about 80MPH.

About half way through I started noticing an occasional shaking from the front end. It only happened a few times at first and I thought it was the road, but then it started happening more consistently and constantly. Basically what would happen is this.

Driving uphill (gentle uphill, not big mountains, just a rolling landscape) or accelerating I would get a sudden shaking from the front end that would persist. Taking my foot off the accelerator normally ended it, but as it got worse I would have to slow down to sometimes 60 MPH to keep it from happening. Then on the next downhill I would gently accelerate again and repeat the process of slowing up when it started shaking on the next uphill. Sometimes, like when between big trucks when I didn't think it safe to decelerate quickly, I would have to just power through it, and the shaking would get fairly bad.

A few times I tried popping the transmission into neutral while it was shaking, and the shaking immediately stopped, so it doesn't seem to be speed related (and it happened at different speeds, though generally under load).

If I had to guess I think it's coming from the driver's side, but I can't tell for sure.

I did try taking some sharp turns in my neighborhood, both left and right, but didn't hear any banging or anything unusual.

I did get it home, and driving around city streets at normal streets doesn't seem to make it happen -- drives fine. But took it out on the highway and got the same thing (not as bad, but then I couldn't accelerate to 80mph on our local freeway).

What do you think?
 
#3 ·
I had a very similar problem. After 250 miles on the freeway with the ECO going at 80mph I experienced a shudder from the van. However mind mostly happened on DECELERATION. Hitting the brake and coming down around 60mph the van started to shake - sometimes violently sometimes like it was the road or I had a flat. I could ACCELERATE through the problem - which seemed strange. When I hit the gas and went faster it seemed to go away. I didn't shift to neutral but I did turn on the OD button - this helped a little but didn't stop it. I drove another 150 miles like this. It happened a handful of times but felt sluggish on acceleration. It seems different than the torque converter problem that is common. I know I have a recent CV boot rip but I would guess it's not this. Any help would be appreciated before I take it to the dealer. Also - had the rear mount replaced with an OEM one less than a year ago.
 
#6 ·
It's not necessarily when I brake. It happens mostly when the I take my foot off the gas and it decelerates under 60mph. There was no consistent way it happened except that it happens at mph over 40. it drives and idles fine around town. No problems. It seems to just happen on the HWY. I thought was a stuck rotor but it accelerated through and seems to be fine at lower mph. it also felt like it wasn't running on all cylinders but again - fine at lower mph. it doesn't seem as responsive as usual but they just be me.