1995 honda accord

I have 1995 honda accord, check engine light is on, it's the EGR valve i`ve been draving it like that for about a year, lately most f the time when i pass 56 mile/h it start shaking, is it the EGR valve or something else.
THanx for you help

Shaking like a misfire or like a tire/suspension problem?

EGR malfunction at speed won't usually do anything...it affects idle and can cause it to stall or run rough at idle if it sticks open...

Tire defects and balance problems are usually most noticeable at 50-60 mph...

I don't think it's tire/suspension problem (i'm not sure!!!), because it shakes very bad , and it's coming from the front i think it got somethink to do with the engine , because it stop shaking when i'm not accelerating even i'm going with higher speed then 70m/h.
thanx fro your help

Does the engine's power seem normal during acceleration when the shake happens?

This is an automatic transmission?


I'm wondering if you have an issue called torque convertor shudder...the torque convertor is the fluid drive coupling between the motor and transmission...it acts as a clutch on an automatic, basically.

There is a mechanism called the TCC (torque convertor control) that mechanically locks the two stages of the tubine together at cruising speed to eliminate slip, for better fuel mileage.

The TCC should lock when the car is cruising at a steady speed in top gear, and should unlock right away if the brake pedal is pressed or if the driver gives it a little throttle, because with it locked the engine would fight the brakes, or be too heavily loaded to accelerate in top gear.

Shudder occurs when the mechanism goes bad, and won't lock or unlock fully, and goes into fits of rapid lock/unlock cycles, which the driver feels as a strong driveline shudder, and engine rpms will fluctuate rapidly over a 200-300 rpm range while it occurs...

Ever notice what the tachometer does when this happens?

Thank you very much for all your help,
I took last week to the shop, it was the axle. it was the last i would think about because i used to check them from time to time
thank you again