2
questions

If I hold a little pressure on the steering wheel the wheel continues to jerk.

it loses coolant when traveling @ interstate speed. was pressure tested at ford dealership they foungd no leak. the coach has 8800 miles and we have add 5 gallons of coolant.the leak has gotten worse. do you think it can be leaking from tattle tail on water pump due to it turning faster at higher rpms. you can let it ideal for hours and it does not leak.. or maybe a faulty radiator cap....coolant leaking on frame & top of engine box...