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

Aod Issue When Cold

  • Thread starter Thread starter rustyruststang5
  • Start date Start date Oct 8, 2012
R

rustyruststang5

Member
May 9, 2011
151
2
17
Ne
Oct 8, 2012
#1
  • Oct 8, 2012
  • #1
When my aod is cold (first thing in morning, or on cold days if I let it sit for a few hours.) it will not shift easy at all. I have to rev it to 5k rpms to get it to shift into 2nd or drive for awhile normally and then it will shift. Also first gear doesn’t act normally before you get it to shift, when you let off the gas the motor will not decel with the Trans, more like its slipping. But once I get the Trans to shift a few times and warm it up it acts totally normal. Anyone have an idea of what my problem might be? Plus would it be an easy fix? I know the trans is not done for because like I said after I get it to shift a few times it acts normal.
 

jcgafford

10 Year Member
Jan 7, 2012
1,114
95
104
Adrian, MI
Oct 8, 2012
#2
  • Oct 8, 2012
  • #2
flush and fill it. it is probably past due.
 

twistedwankel

Member
Sep 7, 2006
200
0
17
Spring Hill, FL
Oct 8, 2012
#3
  • Oct 8, 2012
  • #3
I'm thinking you're low on fluid!! My old truck would do that when cold and down a pint or more due to a loose pan dripping. Then I tightened the pan bolts and no more troubles.
 
R

rustyruststang5

Member
May 9, 2011
151
2
17
Ne
Oct 8, 2012
#4
  • Oct 8, 2012
  • #4
jcgafford said:
flush and fill it. it is probably past due.
Click to expand...
the trans has less then 15000 miles plus i change the fluid under 5000 miles ago.
 
R

rustyruststang5

Member
May 9, 2011
151
2
17
Ne
Oct 8, 2012
#5
  • Oct 8, 2012
  • #5
twistedwankel said:
I'm thinking you're low on fluid!! My old truck would do that when cold and down a pint or more due to a loose pan dripping. Then I tightened the pan bolts and no more troubles.
Click to expand...
i checked that out, it seems to be good to go in that area.
 
R

rustyruststang5

Member
May 9, 2011
151
2
17
Ne
Oct 8, 2012
#6
  • Oct 8, 2012
  • #6
i should also state this is a monster transmission with a tci stall, but it had this problem even before i installed the tci stall.
 

jcgafford

10 Year Member
Jan 7, 2012
1,114
95
104
Adrian, MI
Oct 8, 2012
#7
  • Oct 8, 2012
  • #7
i would be ticked with a tranny with less than 15000 and a change less than 5000 miles ago if it showed up low on fluid.
 
R

rustyruststang5

Member
May 9, 2011
151
2
17
Ne
Oct 8, 2012
#8
  • Oct 8, 2012
  • #8
jcgafford said:
i would be ticked with a tranny with less than 15000 and a change less than 5000 miles ago if it showed up low on fluid.
Click to expand...
i am but nothing i can do about it now been in the car over 5 years, i changed the fluid when i did the stall.
 

ratio411

Founding Member
Apr 21, 2002
3,870
73
109
Pensacola FL
Oct 8, 2012
#9
  • Oct 8, 2012
  • #9
On some Fords there is a valve that bypasses fluid away from the radiator and cooler until the tranny warms up.
I have heard of this valve sticking and causing line pressure problems during temperature swings.
I do not know if your tranny has this or not. Just throwing that out because it is an issue on Ford trucks sometimes.

Other than that, it could be a servo sticking. I have seen that before, causing a cold tranny to have engagement issues, especially when initially going into a gear from P, R, or N.
 

88LX5.Oh

15 Year Member
Dec 30, 2011
1,442
204
94
Arkansas
Oct 8, 2012
#10
  • Oct 8, 2012
  • #10
ratio411 said:
On some Fords there is a valve that bypasses fluid away from the radiator and cooler until the tranny warms up.
I have heard of this valve sticking and causing line pressure problems during temperature swings.
I do not know if your tranny has this or not. Just throwing that out because it is an issue on Ford trucks sometimes.

Other than that, it could be a servo sticking. I have seen that before, causing a cold tranny to have engagement issues, especially when initially going into a gear from P, R, or N.
Click to expand...
Only 2 servos in the AOD are for the over drive band and reverse band. So, I wouldn't think they would cause the problem. But, I have seen weirder things happen.
 
R

rustyruststang5

Member
May 9, 2011
151
2
17
Ne
Oct 22, 2012
#11
  • Oct 22, 2012
  • #11
ratio411 said:
On some Fords there is a valve that bypasses fluid away from the radiator and cooler until the tranny warms up.
I have heard of this valve sticking and causing line pressure problems during temperature swings.
I do not know if your tranny has this or not. Just throwing that out because it is an issue on Ford trucks sometimes.

Other than that, it could be a servo sticking. I have seen that before, causing a cold tranny to have engagement issues, especially when initially going into a gear from P, R, or N.
Click to expand...
i lcould see something about a bypass valve because i swaped out my stock lines for soft lines. id have to look into that though.
 
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