I have a 2000 F150 4.6L V8 Auto. The truck runs ok but when I come to a hill and give it gas it kind of stutters. Plus, getting terrible mpg. The stuttering happens at revs between 1000 and 1500 rpm. Once it gets above about 1600 rpm it runs fine. I kind of floor it to get the gear change to rev the truck up to go up the hill. No codes on the dash. I've replaced the fuel filter. I replaced one COP last year and have a new set if needed. Plugs are the same original ones that came with the truck 10 years ago! (I know, not good)

My question is this: I've looked at my MAF sensor and I see only one tiny wire across the two poles. It looks like a tiny resistor. Shouldn't there by two of them? There are two pairs of poles and only the one tiny resistor looking sensor across the first pair of poles. Has the other broken off or gone? Not the best picture but the best my phone would take.

 

If the maf was bad it would throw a out of range code. Check fuel pressure. Change the damn plugs. More than likely that is you issue

 

Well......there are actually two connectors between the the four posts it's just that they're at different levels. Anyway, MAF cleaner used and once it's dried we'll see if that makes a difference!! I know CarCrazy.....agreed.....new Motorcraft plugs standing by!!!