Help please

[Hunterturner0493]

We have a 2003 Ford Expedition 5.4 L 2 valve with the 4R70W transmission. So a little back story on it. We was pulling a camper down to lake moomal in va. The transmission was getting hot. So when we got back home i pulled it up on ramps and removed the transmission pan drained the fluid put new filter in and put the correct fluid back in. (When the trans pan was dropped there wasnt any metal in the pan or on the magnet. ) pulled it off the ramps after cycling it through park all the way down to 1 gear three times. Went to go up the road about a half a mile and it wouldnt go above 2000 rpms or 10 mph (limp mode). So i thought where the fluid was really bad I put new solenoid in the bottom of the transmission. That didn’t help. It’s got all new oxygen sensors in it. It has a new serpentine belt. New pulley new belt tensioner new mass airflow sensor. New thermostat new thermostat, housing new vacuum lines, new fuel filter, new cylinder head sensor. When I put a code reader on it, my long-trim fuel measures at zero on both bank one and bank two while short-term fuel trim measures at about .5 and up. It has 8 new plugs and 8 new coils as well as 8 new injectors. I also have new exhaust system on the way from manifolds back. To me its kinda like a fuel cut out when driving. It gets worse even going up hills. Im really hoping it isnt the clutch packs in the trans. Thanks for all the help in advance. Im in wv and in the haller we live in we dont get best of service so i will try to reply as soon as i can.

 

[NorthernExMax]

Does your transmission cooler have flow, or are the fins clean on it?

 

[Hamfisted]

Are you the original owner ? How many miles are on it ? How old is the fuel pump ? Can you do a fuel pressure test at the schrader valve on the fuel rail ? Should see 45-55 psi .

 

[Hunterturner0493]

Its a 2003 ford expedition. It has 1920032 miles. We havent done a pressure test. I actually need to purchase one so i can do one. We received our new cat back system today. We are hoping to have it put on tomorrow.

 

[Fastcar]

Its a 2003 ford expedition. It has 1920032 miles. We havent done a pressure test. I actually need to purchase one so i can do one. We received our new cat back system today. We are hoping to have it put on tomorrow.

Check the cat!

 

[Hunterturner0493]

Thank you we plan on trying to get our new one on tomorrow. I tried to take bolt out where manifold meets the exhaust but i cant get them myself without heating them up.

 

[NorthernExMax]

Its a 2003 ford expedition. It has 1920032 miles. We havent done a pressure test. I actually need to purchase one so i can do one. We received our new cat back system today. We are hoping to have it put on tomorrow.

I assume you have 192032 miles? That, or i am pretty sure that is the highest mileage expedition ever at almost 2m miles!

 

[Hunterturner0493]

Yes sorry. Its 192032 miles. I didnt see i put the extra 0 in there. Im sorry for that.

 

[NorthernExMax]

At 192k miles, that cat can still be good. A cat goes bad based off driving habits and poor maintenance. If I were you, id run some seafoam for a couple tanks and try cataclean, those both help clean up your exhaust.

 

[Hunterturner0493]

See the problem is you cant drive it that much. It will only go 30 mph and sometimes it wont even do that