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

Tranny problem?

  • Thread starter Thread starter Nasty Nate
  • Start date Start date Mar 22, 2006

Nasty Nate

New Member
Jan 30, 2006
67
0
0
Portland, OR
Mar 22, 2006
#1
  • Mar 22, 2006
  • #1
Installed h-pipe, now it won't shift right? AOD

I installed my h-pipe yesterday, it's from pacesetter, and has no cats.

Everything is installed fine, except the smog pump hose.

I drove my car around last night, and everything was perfect, I was driving it today, and it was perfect, I turned it off, and when I got back in I was driving and I noticed that it started shifting very early, and it wouldn't upshift.

If I put it in 1, it will rap out fine, but as soon as I put it in D, the highest it will rev from a stop is 2.3rpms, and then it shifts into second, and soon after (30mph) it shifts into 3rd.

What could be going wrong, could my smog pump hose be causing this, and if so, why wouldn't it do it from the start?

If I disconnect the battery, will that reset my computer, and I can see if it's a computer issue?
 

timewarped1972

Member
Jun 17, 2004
642
0
16
mesa, az
Mar 22, 2006
#2
  • Mar 22, 2006
  • #2
if your new h pipe has the spot for that smog/air tube, re install it......( what kind of pipe is it catted or no cats?)

they make o2 sensor wiring harness extenders for your o2 problem.

as for the tranny shifting issue, not sure, fix the other stuff first then see what happens...
 

Nasty Nate

New Member
Jan 30, 2006
67
0
0
Portland, OR
Mar 22, 2006
#3
  • Mar 22, 2006
  • #3
Ok, i'll try to re-install it. what exactly does the smog pump do?
 

Nasty Nate

New Member
Jan 30, 2006
67
0
0
Portland, OR
Mar 22, 2006
#4
  • Mar 22, 2006
  • #4
where could i get the extender?
 

Nasty Nate

New Member
Jan 30, 2006
67
0
0
Portland, OR
Mar 22, 2006
#5
  • Mar 22, 2006
  • #5
Here is another thing... I drove the car last night, and today, and wasn't having any sort of problems at all, the check engine light would come on, but I was assuming that was beacuse of the 02 sensor being unplugged. It was running fine, and felt great, and sounds awesome.
 

timewarped1972

Member
Jun 17, 2004
642
0
16
mesa, az
Mar 22, 2006
#6
  • Mar 22, 2006
  • #6
well if you have an h pipe with cats, and that smog pump tube, it puts in extra air to the cats, if the cats are designed for an air tube they need to have it.......someone else can probably give the specific of extra air and the converters, the scientific part, lol....

yeah your light may be due to the o2 sensor not being hooked up........i think www.50resto.com sells them, maybe someone can chime in that knows of other places, their quite a common part i believe. www.fordfuelinjection.com might have them too
 

Nasty Nate

New Member
Jan 30, 2006
67
0
0
Portland, OR
Mar 22, 2006
#7
  • Mar 22, 2006
  • #7
My new h-pipe has no cats.
 

Nasty Nate

New Member
Jan 30, 2006
67
0
0
Portland, OR
Mar 22, 2006
#8
  • Mar 22, 2006
  • #8
Ok, i fixed the problems. It's still shiftin all crazy.

It won't even hit 2.5k rpms if I floor it from a stop, then it shifts into 2nd, and shifts into 3rd at 30mph. It won't upshift, unless I come to a complete stop.
 

Nasty Nate

New Member
Jan 30, 2006
67
0
0
Portland, OR
Mar 22, 2006
#9
  • Mar 22, 2006
  • #9
I changed the 1st post, please look at it before posting.
 
You must log in or register to reply here.

Similar threads

A
1987 5.0 speed density Foxbody crank no start
  • Alan2204
  • May 23, 2026
  • Fox 5.0 Mustang Tech
Replies
10
Views
320
Fox 5.0 Mustang Tech May 30, 2026
Mcmahst
O
Sooty/Oily Front Engine & Pulleys
  • ozenator
  • Jun 15, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
12
Views
299
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jun 22, 2026
Blackhawkxx
B
Electrical Why does my fox body keep frying eecs
  • brandyn200
  • Jun 20, 2026
  • Fox 5.0 Mustang Tech
Replies
8
Views
284
Fox 5.0 Mustang Tech Jun 25, 2026
AeroCoupe
Problems after exhaust install and 02 harness
  • djj62478
  • Jul 2, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
39
Views
565
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jul 18, 2026
AeroCoupe
Fox Fuel Pump Issues After Replacement/Upgrade
  • Ryu
  • Jun 23, 2026
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 2
Replies
23
Views
616
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Jul 5, 2026
Ryu
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?