LEAN BANK ONE
Mountain Pass
Joined: Oct 2002
Posts: 205
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From: Jaqcksonville
Sounds like the booster. The booster is a dual diaphram and mine started the same thing. It got so bad (me lazy) i could get the engine to stumble and die almost by moving my foot slightly on the pedal. It goes bad long before you hear the hiss. Might as well do master cyl as your at it. I had the same lean code/ registers going to defrostvetc.
Posting Guru
Joined: Jul 2004
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From: Mitchell, SD
Looking at the catalog, it would take a Fel Pro 72266.
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Lead Driver
Joined: May 2003
Posts: 9,303
Likes: 48
From: Lyndonville, Vermont
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Lead Driver
Joined: May 2003
Posts: 9,303
Likes: 48
From: Lyndonville, Vermont
Wahhlaa Fixed...just when you thought the old 96 couldn't run any better....Runs like new. I used both the oring and the oem gasket. felpro 71202 and felpro 72266.
It aint gonna leak and i'll bet my green 96 could use them. Its not real hard getting at that seal you just have to be able to get the bolts out....The ac comp has to come out and be laid it aside. dipstick nut and pull stick just nuff to go over stud don't yank out of block.
Now the stud has to come out where the dip stick was fastened. Good luck. mine was ok because I did an intake gasket a few years ago. From the wheel well I removed the two egr bolts. Next I grabbed the egr and flexed it out of the way to get the pipe out.
The seal didn't look too good...I put the new oem on then the green oring and put everything back together.
I'll bet many 4.0L have this problem.. A little carb cleaner will tell or heat to defrost up a hill.
Thanks Guy's
Dick
It aint gonna leak and i'll bet my green 96 could use them. Its not real hard getting at that seal you just have to be able to get the bolts out....The ac comp has to come out and be laid it aside. dipstick nut and pull stick just nuff to go over stud don't yank out of block.
Now the stud has to come out where the dip stick was fastened. Good luck. mine was ok because I did an intake gasket a few years ago. From the wheel well I removed the two egr bolts. Next I grabbed the egr and flexed it out of the way to get the pipe out.
The seal didn't look too good...I put the new oem on then the green oring and put everything back together.
I'll bet many 4.0L have this problem.. A little carb cleaner will tell or heat to defrost up a hill.
Thanks Guy's
Dick
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Lead Driver
Joined: May 2003
Posts: 9,303
Likes: 48
From: Lyndonville, Vermont
All three of my vans go to def when on a hill. The green mint one not all the time. grrrr. Vac tank is pretty small.
Mountain Pass
Joined: Oct 2002
Posts: 205
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From: Jaqcksonville
Only Bank 1 on the Aero V6s.
OBDII advanced PCM computer in the '96 on still outputs Bank 2 data, but random gibberish.
V6 and V8 with dual exhaust and dual CATS have both Bank 1 and Bank 2 real time data.
Bad wires would pop misfire codes.
You get to start the great vacuum line hunt, they get damaged and knocked off replacing the plug wires.
That Christmas vacuum tree has never gave me any good presents.
Shame Ford never bred a line of 2" midget auto mechanics just for the Aero.
OBDII advanced PCM computer in the '96 on still outputs Bank 2 data, but random gibberish.
V6 and V8 with dual exhaust and dual CATS have both Bank 1 and Bank 2 real time data.
Bad wires would pop misfire codes.
You get to start the great vacuum line hunt, they get damaged and knocked off replacing the plug wires.
That Christmas vacuum tree has never gave me any good presents.
Shame Ford never bred a line of 2" midget auto mechanics just for the Aero.
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Lead Driver
Joined: May 2003
Posts: 9,303
Likes: 48
From: Lyndonville, Vermont
Dick
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