MJohnson
New Member
Ok so I have a 1998 4.6 l xlt with 300,000 plus miles. New to me after 250,000... So no Idea about the minutes before I got it .But you're recently it's developed a ticking sound in the upper end driver side almost sounds like marbles rattling around in it. It dose it when you accelerate if you let off the gas it goes away alittle but then Comes back I've tried running higher octane fuel....Does no good,It goes away after I get above 70 and at cruising speed..... It also started surging under acceleration thought it was the transmission slipping but tack doesn't move. I don't even know where to start .. Change plugs wires new spark plugs.. no vaccum leaks that i can find so any help would be appericated...