I am welcome to suggestions. My wifes car, a 2002 Lincoln Continntal,with the 4.6 Intech DOHC 32v. Electronic trans. FWD When you stop and sit at a red light for a prolonged amount of time, the car will (the best I can explain is like being tugged like a fishing pole). A small surge, the car does not move, Is like a small jump. I cleaned the thottle body, MAF and cleaned the low idle valve, then when the problem persisted I replaced the low idle valve, still did it, not as bad, but there. I unhooked the battery, reset the system as the manual said, still there. 2 new fuel filters and a new air filter. Two bottles of Chevron Techron(in two separate fill ups, a qt. of MMO and a couple of no name injector cleaners in other fillups, ran 93 and 89, switched gas, Shell, Chevron, BP, still did it,not as bad not everytime but now and then it still does No check lights on. Car runs great, gas milelage where it should be, shifts smooth. I think I may need a professional now. The Lincoln Dealer, claims it could need a reflash, but wont commit to that being the problem. Also said a Torqueconverter switch in the tranny, which scared me and I have a miss trust for car dealerships, especially when sales are slow. They need revenue. I talked to a mechanic that I dealt with in the past and trust and he said he serious doubts the tansmission, they are pretty tough on the Lincolns, he said he would have to do a Diaostics, which would be $75-100. He said it is probably a fuel problem. He said he cleans alot where he takes the whole rail off to clean, $159 service. This guy is pretty honest in the past and saved me alot of money when my last Dodge truck was estimated at a dealership for a $1500 repair and he found the problem and fixed it for $320. This happened twice on that truck with him so I began to trust him. Whats your take on this, did I miss anything, what would be your next avenue, Iam thinking more Injector cleaner. Any ideas? Iam open to suggestions.