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

shift probs from plugs and timing change? on aod

  • Thread starter Thread starter chad935.0lx
  • Start date Start date Nov 8, 2005
C

chad935.0lx

New Member
Nov 8, 2005
3
0
0
Nov 8, 2005
#1
  • Nov 8, 2005
  • #1
last night me and my dad changed the plugs on his 93 lx 5.0. after that we adjusted the timing just a little (so it ran smooth). put a couple vacuum hoses back in place (fairly sure). after this we went down the road and noticed that when you floor it it doesn't go to passing gear. the motor revs but no change in speed torque nothing. today we took all the hoses we replaced off to see if that was it. no change. i read the thread about tv and i just wanted to ask if it sounds like it could be anything else before going out there and and adjusting the tv. so if anyone could help please do like i said it's going throught the gears fast. i'm talking OD at about 10mph no pasing gear it down shifts manually but other then that no. thank you for any help.
chad
 

notchback

Founding Member
May 30, 2000
1,950
0
36
St Clair Shores MI
Nov 8, 2005
#2
  • Nov 8, 2005
  • #2
an aod has alot of trouble downshifting, i bought my '90 aod new, and it never was the way i wanted it, even after numerous rebuilds.

do not mess w/ the tv pressure, you'll smoke it in a minute.

are you saying you feel a lack of power...check your plug gap and the possibility that all the wires were not snapped on all the way., coil included.

sounds like a spark issue , after changing all that stuff
 
M

macx

New Member
Jul 18, 2004
228
0
0
SE Missouri near Cape Girardeau
Nov 8, 2005
#3
  • Nov 8, 2005
  • #3
If it has the original trans, it will be
an AOD/E and therefore electronically
controlled versus having a throttle valve
cable.

Sounds like your OD band may have given up.

One other possibility is that one of the
shift solenoids inside the trans on the
valve body (you have to remove the
pan to get at them) may be sticking,
OR the MLPS (manual lever position sensor) on the shift arm on the outside
of the trans may have gone bad.

You can get some info on these systems
by going to www.tccoa.com, looking in
their tech section, in transmissions,
look at the first 3 articles.
 

sunil6784

Member
Mar 31, 2005
620
0
18
Boston, MA
Nov 8, 2005
#4
  • Nov 8, 2005
  • #4
probably not your problem, but when you said that you adjusted the timing, did you use a timing gun?
 
You must log in or register to reply here.

Similar threads

B
Engine Another no start after washing engine bay
  • bruno
  • Apr 26, 2026
  • Fox 5.0 Mustang Tech
  • 2
Replies
24
Views
648
Fox 5.0 Mustang Tech May 7, 2026
AeroCoupe
S
Engine Stalls when downshifting/coasting
  • Scott_S
  • Nov 5, 2025
  • Fox 5.0 Mustang Tech
Replies
11
Views
692
Fox 5.0 Mustang Tech Nov 6, 2025
Mustang5L5
Drivetrain 83’ Glx convertible C5 Trans help!
  • JacksonJared2113
  • Dec 25, 2025
  • Fox 5.0 Mustang Tech
Replies
2
Views
380
Fox 5.0 Mustang Tech Dec 26, 2025
JacksonJared2113
P
C4 transmission shifting issues
  • Porter07
  • Aug 17, 2024
  • 1965 - 1973 Classic Mustangs -General/Talk-
Replies
5
Views
1K
1965 - 1973 Classic Mustangs -General/Talk- Sep 1, 2024
89ripper
3
Eight inches is enough for me...
  • 351MooseStang
  • Nov 27, 2025
  • 1974 - 1978 Mustang II Talk & Tech
Replies
5
Views
562
1974 - 1978 Mustang II Talk & Tech Mar 2, 2026
Bullitt347
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?