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Performance Upgrades - Maintenance - Modifications - Problem Solving - Off-Road - Street Trucks. Covering the Explorer, ST, Sport, Lincoln Aviator, Sport Trac, Mercury Mountaineer, Mazda Navajo, Ford Ranger, Mazda Pickups, and the Aerostar. Featuring H.I. - Human Intelligence.
Given that the problem goes away with a full tank, maybe there is a wire on the top of the tank that is getting pinched - thinking the tank shifts down when full/heavy, and lifts as it gets lighter.
Just a thought. Check your fuel tank mounts as well,
Kirby,
Would you be interested in the Ford Fuel Injection & Electronic Engine Control book? If you are not familiar with it, it covers all EEC-IV systems.
I was going through my bookshelf, and found it. Since I no longer have a Ford, I don't need it.
It is out of print, and this copy is in...
How solid is that mounted between the engine and firewall?
I assume you allowed for engine torque movement and vibration - just can't tell from the pictures.
It might not hurt to deck the heads to make sure they are flat. We took 0.002" off the new aluminum Edelbrock heads I put on my 5.0L - yes, brand new and not flat. :(
We had to take 0.007" off each side of the block to get the even.
Ended up with 9.2-ish:1 compression. It ran on 87, though...
Were it me, I would find the best flowing heads, and start there. I don't there is much difference between OEM and aftermarket pistons, functionality wise (other than the obvious shape of the top of the piston), but there can be a huge difference in the flow through different heads.
Also...
I wasn't going to recommend or not - LOL
It worked fine, until it didn't. No idea why it failed.
But, I have seen a lot of off-brand parts be absolute junk. On my 5.0L, I stayed with known good parts/brands.
But a lifetime warranty is a good thing to have. Getting to your compressor is...
Since I'm still following this thread, I'll add my experience.
I bought a Motorcraft compressor from RockAuto for my 5.0L. At the time of conversion, I also converted the A/C to R-134. Once plumbed and charged, the system worked fine.
After a couple of years, the compressor locked up. Of...
I had about ~300,000 miles on mine, when it started leaking on our trip in 2011. On my way home, I put 5 quarts of oil in it in Oklahoma. :eek:
I made it back to Georgia with no other issues, though.
Ah, good times....
I wasn't aware of any difference in the internals of the FX4 case to the standard case. The documentation from my '06 Level II didn't mention anything about any upgrades.
Of course, if I still had that truck, I could go open it up and look... ;)
I did. i figured since I was in there, I might as well. My magnet was clean, as was the filter screen.
I also changed the fluid every 15K miles, which helped keep everything clean.
Is this a manual-shift case?
I rebuilt mine at about 200K miles. It was actually a simple job. Fortunately, there was no major wear, and it was clean inside.
Are you replacing the pump as well?