It might be the front hub assembly. My 2005 silverado shakes at 65mph when i went to change the brakes recently i noticed the whole assembly (with the brake caliper on and the wheel off) that it moved around way too much. I am still trying to determine if it is the whole hub assembly or wheel bearings.
there is certain mph's that do that. ur tires are prolly off balance or your alignment needs to be fixed.start off by balancing and rotating ur tires.and if it shakes when the brakes applied the you need to check your rotors.
If your 1999 4 cyl Mitsubishi Eclipse shakes when you reach 70 mph, you may need to replace your tires. Edit: I recently replaced my four tires so I don't think it would be the tires though.
It would be highly unlikely.
The symptom would indicate a wheel/tire/balance problem. You need to have a professional inspect if you are driving at those speeds. also make sure if you drive at 120+ mph, you have "Z" rated tires for safety.
My guess would be wheel balance.
i would really like to know myself
85 mph.
A 2007 Chevy Silverado will get approximately 15 mph in the city and 19 mph on the highway for a combined average of 17 mph. This holds true for both the 2WD and 4WD 2007 Silverados.
98 MPH. At 98 mph engine controll module goes in to engine cutoff mode. Engine will immediately restore power but will not exceed 98 MPH on and Silverado model 2007 thru 2011.
If it happens when you are driving fast (60-70 MPH) it could be that your wheels are out of alignment.
Can be a bent wheel, tire out of balance, or worn suspension parts.
100 mph then vuts off and refires at 99 mph