No Power! Ready To Push Off Cliff
I've researched several threads with similar problems but none with conclusions. 98' Duratec, 92,000 has absolutely no pick up when starting off from a dead stop. Had 100k major tuneup (new plugs, wires, tb and inj. cleaned) done at 88,000 with rebuilt trans. as part of recall. Ever since, no power. This is very apparent during hot weather, AC on, stop and go traffic. Moderately accelerate from stop and there is this hesitation followed by a surging as car trys to gain speed and then at about 40 mph car will take off with plenty of power. If you accelerate hard there is no hesitation. No other problems with this car. This vehicle is well maintained (oil, filters, inj. cleaner, etc). No codes. Pulled front three plugs out and rechecked gap and all within specs. However, the first plug did have an oily substance around the top of the threads. Plugs were sooted black but not fouled. I'm at a complete loss. Have visually inspected everything under hood (vac. hoses, wires, etc.) and can't find anything wrong. Dealership here is not the best. Any ideas? Can't imagine going much longer like this.
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Update time, disconnected batt. cables to reset PCM and replaced cam pos. sensor today. Still doing the same. I've been paying very close attention to when the car is "lagging/bogging down" and it seems to be when engine is hot (and hot outside) and in stop and go traffic. It happens just after it shifts from 1st to 2nd (AC on). There is a very noticeable "surging" as it trys to accelerate. Reminds me of being on a roller coaster when you start up that first hill when the chain is pulling the cars up the track.... Runs fine on interstate at high speeds and idles fine with no missing in engine. Taking to dealership next week and hope it doesn't cost a fortune 
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