Ok so I had a hesitation going up an incline between 40-50mph. Everywhere I went stated it was the TPS. Got a new TPS, took hours to get the screws out, horrible!! As soon as I fixed that the problem got worse, and it finally threw a code. Cylinder 4 misfire. 1st I replaced the ignition coil, #4. Problem went away for a day and came back, same cylinder. I replaced the ignition coil cause Ford has a nasty problem with water run off right onto cyl. 4/8 and killin the coil. This time I replaced the plug, problem went away. This was all in 2 weeks. Finally I got around to replacing the other 7 plugs. All were easy but #7, there's a filter of some sort on the fuel rail, which covers completely the coil screw. So I pulled the wires away from the block which is easy since they attached to a plastic harness and thats snapped onto a screw on the valvle cover. Got under it with a 7mm wrench and finally got it removed. Cylinder 5 though you do need to remove the support bracket for the power steering reservoir. Cylinders 4/8 you need a "whobbler" extension. And yes in each cylinder after you take out the coils blast each one with air, tons of crap in them. It would be wise to hit the cylinders with air b4 doing any of this as well, getting any loose crap off ahead of time so it doesn't fall in while replacing the plugs.
Now for a new problem only 2 weeks later. Saturday I went out for a bit and came home, then we got hit with a severe thunderstorm. Got in my truck late Sunday nite and it started fine, but had a rough idle. Seemed to hesitate in Park and in Drive, idle actually kicked down, made it 3 miles from my house and started losing power going up hill again. Then it threw a Check Engine Lite. That went off when I got to the top of the hill. Still ran like crap for the other 5 miles of my ride. Parked it, sat for a few hours, started it up and it still ran like crap. Got 60 feet out of the parking lot I was in, and the CEL came back on. It wreaks like rotten eggs, everyone says it's the Cats, and we all have 4, on the Expo. Now it's process of elimination. Already found a direct fit, replacement, with both cats, and tubing pre-assembled on Ebay, from an auto parts store $260 shipped. NAPA wants $600-$730 per side. You have a passenger and driver side assembly each side has 2 cats.
Got an ActronCP9175 OBD II reader on the way. Got the parts bookmarked. Just wanna check the codes first. B4 I start spending more time and money on this. Looking for any other ideas in the meantime.
Now for a new problem only 2 weeks later. Saturday I went out for a bit and came home, then we got hit with a severe thunderstorm. Got in my truck late Sunday nite and it started fine, but had a rough idle. Seemed to hesitate in Park and in Drive, idle actually kicked down, made it 3 miles from my house and started losing power going up hill again. Then it threw a Check Engine Lite. That went off when I got to the top of the hill. Still ran like crap for the other 5 miles of my ride. Parked it, sat for a few hours, started it up and it still ran like crap. Got 60 feet out of the parking lot I was in, and the CEL came back on. It wreaks like rotten eggs, everyone says it's the Cats, and we all have 4, on the Expo. Now it's process of elimination. Already found a direct fit, replacement, with both cats, and tubing pre-assembled on Ebay, from an auto parts store $260 shipped. NAPA wants $600-$730 per side. You have a passenger and driver side assembly each side has 2 cats.
Got an ActronCP9175 OBD II reader on the way. Got the parts bookmarked. Just wanna check the codes first. B4 I start spending more time and money on this. Looking for any other ideas in the meantime.
