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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

Aod Pump Question

  • Thread starter Thread starter gungfusemaj
  • Start date Start date Jun 23, 2005

gungfusemaj

Member
Dec 13, 2003
211
0
16
Bradenton Fl
Jun 23, 2005
#1
  • Jun 23, 2005
  • #1
What are some of the signs of a dying Pump on a AOD.
Also how many are there 1 or 2 {upper and lower}?
Ive ?smelt some tranny fluid before ggoing to the next county and There is this wierd "catching noise" down by my feet.
 
C

custom89stang

New Member
Dec 9, 2003
705
0
0
Seattle, WA
Jun 23, 2005
#2
  • Jun 23, 2005
  • #2
my mechanic said i a blew a "front pump seal" when my car started leaking tranny fluid....so now i have a t-5 swapped in. i had to add fluid more and more often and it got worse and worse.....
 
S

stroked8e5

New Member
Jun 18, 2005
28
0
0
Jun 23, 2005
#3
  • Jun 23, 2005
  • #3
Pump Failure

A loud whining or kind of a high pitch grinding from bellhousing area is commen in pump or converter failure. Low line pressure would result also and most likely the unit would slip in all ranges at least under heavy throttle.
 

gungfusemaj

Member
Dec 13, 2003
211
0
16
Bradenton Fl
Jun 27, 2005
#4
  • Jun 27, 2005
  • #4
Now can I Change a Pump or pump seal my self if not is it Expensive?
 

crazypete

All my crevices are greased.
Oct 22, 2004
930
4
18
Arlington, MA
Jun 27, 2005
#5
  • Jun 27, 2005
  • #5
The front pump is about $160 from the dealer. You basically have to drop the transmission from the car and pull the converter and then remove the 6 bolts and press the cover off using those very same 6 boltholes threaded with larger bolts.

At that point, you should just rebuild the AOD yourself cause you've already done the difficult part
 

bluevenom867

I will have images of molesting stuffed animals in
Dec 15, 2003
1,704
1
0
St.Petersburg,FL
Jun 27, 2005
#6
  • Jun 27, 2005
  • #6
crazypete said:
The front pump is about $160 from the dealer. You basically have to drop the transmission from the car and pull the converter and then remove the 6 bolts and press the cover off using those very same 6 boltholes threaded with larger bolts.

At that point, you should just rebuild the AOD yourself cause you've already done the difficult part
Click to expand...

Yup.

Oh,then get mad and say "Piece of crap" and put a C4 in istead .
 

bluevenom867

I will have images of molesting stuffed animals in
Dec 15, 2003
1,704
1
0
St.Petersburg,FL
Jun 27, 2005
#7
  • Jun 27, 2005
  • #7
Describe this, "Catcing noise" ?
 

crazypete

All my crevices are greased.
Oct 22, 2004
930
4
18
Arlington, MA
Jun 27, 2005
#8
  • Jun 27, 2005
  • #8
No c4!

Even with 2.73 gears, you'd be pulling almost 2800 on the highway going 80. With 3.73's, you'll be pulling something like 3800. Use this link:

http://www.4x4cyberstore.com/website/rpmchart.html

The c4 is much lighter and stronger but it's really limiting for a streetcar.

The catch could be a broken anti-rattle spring in the AOD case. Theyre near the top of the case and if they fall out, the AOD innards move a bit when going to direct drive and make a clunk.
 

bluevenom867

I will have images of molesting stuffed animals in
Dec 15, 2003
1,704
1
0
St.Petersburg,FL
Jun 27, 2005
#9
  • Jun 27, 2005
  • #9
crazypete said:
No c4!

Even with 2.73 gears, you'd be pulling almost 2800 on the highway going 80. With 3.73's, you'll be pulling something like 3800. Use this link:

http://www.4x4cyberstore.com/website/rpmchart.html

The c4 is much lighter and stronger but it's really limiting for a streetcar.

The catch could be a broken anti-rattle spring in the AOD case. Theyre near the top of the case and if they fall out, the AOD innards move a bit when going to direct drive and make a clunk.
Click to expand...

Well,my C4 would make a clunking noise when you shifted,befor we had it rebuilt by someone that wasnt a damn rip off ******* thats is....

Turns out,it had more than twice the end play alowed.It also had slug in the tail shaft,and the intermediat band was shot.
 
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