Engine low power?

I replaced all the manifold gaskets and the car is still doing the same thing so I did the MAF and that fixed it thank you.

Engine Performance problem
2002 Ford Taurus 6 cyl Two Wheel Drive Automatic

My Ford Taurus 2002 has lost horse power and won't accelerate like it used to. My current max speed is 40 mph. Sometimes the car feels like it is going to shut down and it staggers randomly. People are telling me that the MAP sensor needs to be changed however the scanner is currently pointing to the MAF sensor P1101. I am also having problems locating the MAP sensor on the car. I have checked the internet and knows what it should look like.

Note I had to change my fuel pump couple months ago and notice that the car's performance was not the same after new pump was installed. It had poor acceleration and my max speed was 60 mph. I took the car to be scanned and it had error code P1401 and had to purchase an new EGR sensor. I thought this would fix the problem but it only got worst which has deteriorated to what it is now. I am afraid this problem is more than just the MAF or MAP sensors. I really need help with this one - Please help! I also fair that I have been ripped off by my mechanic with the fuel pump replacement - the car was not starting. He told me that the fuel was not reaching the engine.

When I'm cruising in my Taurus it often feels like it looses power and feels like it's missing. I took it to the Ford dealer and they checked it and said they found nothing except the throttle body and upper intake manifold had lots of carbon buildup. Another Ford dealer found something not quite right with cylinder 6. I decided to clean the intake and tb myself. When I pulled everything I noticed something with the lower intake. The first 5 ports had black buildup inside and the 6th had rusty looking buildup inside. I'm wondering if I might have a hairline crack in the lower intake.
Here is a list of all the components that have been replaced: Plugs, wires, ignition coil, pcv valve, both upstream oxygen sensors, dpfe sensor, egr valve and egr vacuum control solenoid. Here is a link to the photos of the lower intake. Thanks for any help you can provide.

I have a 2002 Ford Taurus 145,000 miles. When I accelerate from a full stop the vehicle will hesitate and shake a little, and then after driving for about 30 seconds the engine will rev up and go back down to normal. This only occurs when I'm accelerating from a full stop, it does not happen at higher speeds.

Has no power to the crank sensor where does ground wire goes to on plug for crank sensor all fuses and relays are good what to do next

No power to the wire and the ground wire is not connected. I s changing the cam sensor I marked the groves on the body didnt look. Inside. H way it was position

Is there a way to put back the cam sensor without messing with timing I didnt look inside which way it was position

Transmission problem
2002 Ford Taurus Automatic 150000 miles

My 2002 Taurus has roughly 150,000 miles on it. The car is used every morning to deliver papers, stop-go-stop-go. For about an hour and a half. The transmission hasn't been acting up until recently, when I noticed the RPM hung around 3 for a few seconds too long before shifting. NOW(2 wks later) the RPM always gets up to atleast 3.2, sometimes 4 before shifting, and it hangs around 2 a lot. When you accelerate from a stop sign or a red light, it's like the car doesnt notice it needs to shift, it just revvs for a few seconds, then catches and sometimes bucks into the next gear. If you don't push it(push the gas down more), it will just stay @ 2.5-3rpms and keep the revving sound for as long as it wants, barely accelerating/not accelerating at all. When you're already going about 30mph and accelerate a little, it does the same thing, only catches quicker than from accelerating from a stop or a very low speed.

It also makes this humming/squeak noise when it shifts. It doesn't sound like a belt, more kind of like. Air escaping from a small space at a fast speed? IDK. Think high pitched choo choo train. Also, the yellow blinking exclamation light in the dash comes on after it's been driven for over 10, 15 minutes on main roads. I've been told that while doing the papers it doesn't usually come on and I'm assuming it's because you don't really have to shift higher than 2nd(?) When doing the papers house to house.

PS- It's usually fine for the first 10ish minutes of driving.
Please help, if I don't have to pay $2,000.00 for a new tranny or get a new car, getting my family to work will still be possible.

Car wont go past 20-25 mph, RPMs just keep going up, engine keeps revving. Im too scared to rev to past 5 RPMs b/c of the noise.
I can only assume the transmission is done.

2002 Ford Taurus 6 cyl Front Wheel Drive Automatic

i have changed plugs and wires fuel filter it runs sluggish will not get over bout 5mph and when ac is on it surges

No haven't checked pressure or converter but the check engine light was on for awhile but went off when I changed the plugs and wires