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I wish I had a fix. It has been to cold here lately for me to look into the problem farther. I already did everything I could think of. I really need to run the smoke test again. I just keep my code reader on hand and keep resetting the code. I'm hoping to fix the problem within the next few weeks.

I replaced my egr valve plus gasket and it is better but my Lt fuel trims are still near the +20s. I knew I had a leak in that area after using my diy smoke test. Where else can the vacume leak be? I have check all hoses and even replaced some of them. I know it is a vacuum leak because as I...

Yep everything is all stock. I will check the compression. The only reason why I thought it may be an intake leak is because after I replaced the intake gasket my fuel trims went from bank 1 15% bank 2 23 % to bank 1 25% bank 2 25%. Both numbers increased. I thought maybe it had a previous leak...

Unfortunately I don't have the on-board mpg display. So I did it the old fashion manually way by calculating it out.

If I recall I think I do remember seeing the pressure listed in the menus. I think it was around 39. I will have to double check that though. Those are the only codes for the engine. I have a trans code about the pressure solenoid ( really it is a servo bore leak). But this code would have...

Do you think A smoke test should be my next step? How do I test the fuel pressure if I dont have a test port. thanks

I have already checked all of the hoses and they look in good shape. I did replace the pcv valve hose because it looked like it could have been bad. I think my next thing is to rig up one of the diy smoke test machines to hopefully see where / if there is a leak. Where would the fuel test port...

I put the new MAF sensor in and my ltft did not change a bit. (I disconnected my battery so everything is reset). The values are identical to before. At idle my ltft is +25, when driving the ltft is also +25 it goes down to 23 with a change in terrain but then climbs right back to +25. When...

Just for any update, today I replaced my intake gaskets as well as the pcv valve plus its hose that connects to the intake. My ltft for bank 1 and 2 are now both exactly +25. Before Bank 2 was +23 and Bank 1 was +16. I am now think being though these numbers are identical it may be the MAF like...

The ltft is just an average of the short term right? If thats the case than the average is calculated overtime so in the end when i view the data for ltft at idle it already has stored the values when it was on the highway. I have checked it while moving and it still was the same high result...

any ideas? thanks

Hi everyone, I am having the bank 1 and 2 lean codes coming up on my 04 ford explorer 4.0. I have 255k on the explorer. I know the older generations had major issues with the intake gaskets leaking(both lower and upper). I cant seem to find much info on the newer generation 4.0 that is used in...

I know 9L2Z7G391A is the part that should go in there. My question is would the 1L2Z7G391AG also work? Isnt the 9L2 just a newer revision for more reliability? I can get the 1L2 for a lot cheaper. I am really looking to put the least amount of money in my vehicle being though it has 250k with...

Anyone have any more info about the part numbers? Thanks

anyone have more info on this? Thanks

Did anyone ever find out the difference? I order 1L2Z7G391AG for my 04 4.0 but i think it is supposed to be 9L2Z-7G324AA . Will the one i order work? I have 250k on the explorer now so i don't think i will get a whole lot left out of it. So longevity of the Solenoid probably isnt my biggest...

Hi everyone, I am having the same issue with my 2004 4.0. I ordered the solenoid however I think I got the wrong one after looking into it more. I ordered 1L2Z7G391AG it said for the 4.0 but upon looking further it appears to only list the compatible vehicles up until 03. Did they change the...

Awesome!!!!! By any chance would you have the link to your postings and where you got the solenoid pack? Thanks!!!! You made my day! I was thinking major trans problems(still is also a chance but doesn't sound like it)

Anyone have any more ideas? Thanks

How can i diagnose if the torque converter keeps unlocking? I also ready one of my codes when the overdrive light was blinking and it said p0775 pressure control solenoid b.

Does the torque converter lock only in overdrive?

Would the converter even be locking? Im not even in over drive when this happens? I thought it only locks when it is in overdrive? My idle is also a little rough and not the smoothest. Nothing drastic though.

Hmm didnt think about that. What would cause it to only do it under load? thanks

Hi everyone, My explorer has been acting up lately. While driving the rpm will fluctuate between 2000 and 2600. It will only do this when there is a load on it like going up a hill. When it is in overdrive it will not do this. It seems like a fuel related issue not transmission because the trans...