6 replies to this topic

[Pete]

Lately I've been getting a small shuddering feel (from the gas pedal) on my 97 GLT when I accelerate at 55-60 mph. Not severe but it does feel odd. At other speeds, it feels great.

I had the timing belt done about a month ago and the control arms and short axle about a year ago. Why would it just happen at those precise speeds ?? The tires are almost new and I don't think its an alignment issue. Is this the dreaded CV issue ?

Thanks.

[calgary850awd]

With my 97 850 I had a slight vibration at 100 km/h (appx 60 mph). It was caused by failing engine mounts. I would check the condition of the engine mounts and go from there. The 2 most common ones to fail are the front passenger side mount and the upper torque arm bushing. You might also notice a vibration in the car as well at idle. Another good indicator of worn mounts. Hope this helps!

Good luck

Corey

[USMC850T]

I have a slight shudder as i pass from 80-85 mph, could this just be an alignment issue?

[calgary850awd]

Wheel alignment doesn't usually cause vibrations. Wheel balance does more often than not.

[Boosted2003]

possibly tie rod. I fixed that on my 760 and it went away. But fwd might be different

[Pete]

Thanks guys. Tomorrow I'm heading over to the tire shop to get my tires balanced again. I hope that does it.

Somehow I've got it in my noggin that it has something to do with the engine internals like the timing belt. Or maybe the fact that I drive a lot in that particular speed range. But then if it did, I think I'd feel much more of the shuddering up and down the rpm range.

[SH8KDWN]

I had something similar happen between 65-80, it turned out to be a flat spot in my front tire. Weird that it only did it at a certain speed range.