AODE vs SENSORS -need answers please

livenfine

New Member

Jun 9, 2003

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Jun 29, 2004

#1

• Jun 29, 2004

• #1

I've been searching for help with my AODE without any luck. Here's my problem: with the cruise on, driving 55-ish, the tranny will get a mind of it's own shifting from OD to 3rd sometimes even to 2nd then back to OD. This happens consistently and often. It's as if a sensor is telling the tranny to downshift then the sensor is happy and the tranny shifts back to OD.

At 70-ish the problem does not show up.

What do you think the prob is? I lean toward a bad sensor.

Someone please educate me on this tranny and how it's controlled. Does it have a separate brain from the ECU? Which sensors does it use to determine when to shift, etc?

Thanks!

 

livenfine

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Jun 9, 2003

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Jun 29, 2004

#2

• Jun 29, 2004

• #2

bump

 

Mrgreen94gt

SIMMA DA NA!!!

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Jul 16, 2002

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West TN

Jun 29, 2004

#3

• Jun 29, 2004

• #3

I would have that checked out by a good tranny shop, or reasonable equivalent.
It may be electronic, which is what I would be hoping for, or it may be worse. When that happend to me, it was one of those worst case scenarios.

 

OinkAodeOink

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Jun 5, 2002

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Daytona bch, Florida

Jun 30, 2004

#4

• Jun 30, 2004

• #4

actually this exact problem is happening with mine..
I thought it was a shot o/d band, but after testing it, that seems fine ( drop into manual 2nd at 55mph, supposed to engage the o/d band, and not slip)

From what ive been reading, its starting to sound like you and I, might have a bad MLPS ( Manual lever posistion sensor) Suposibly these get moisture in them, and go crazy. I believe the late 95s solved this problem with a rubber seal around the sensors base.

I think il just take mine to a tranny shop, and have them throw a code scanner on it, and see if thats not the problem ( bad MLPS)

 

bjl95mustang

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Jan 18, 2000

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Austin,TX

Jun 30, 2004

#5

• Jun 30, 2004

• #5

You can gte a new mlps from autozone or any parts store from about $20-30. It might be listed under a nutreal saftey switch for a mustang with an auto.

 

livenfine

New Member

Jun 9, 2003

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Jul 2, 2004

#6

• Jul 2, 2004

• #6

Thanks. I'll try that first. But:

livenfine said:

Someone please educate me on this tranny and how it's controlled. Does it have a separate brain from the ECU? Which sensors does it use to determine when to shift, etc?

Thanks!

Click to expand...

 

bjl95mustang

Founding Member

Jan 18, 2000

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Austin,TX

Jul 2, 2004

#7

• Jul 2, 2004

• #7

It uses the ecc to controll shifts. It uses input from the maf, tps vss, mlps, boo, pip and I think a couple of other sensors witch is the end affect the trans.

 

9

94gtny

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Feb 1, 2004

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Albany, NY

Jul 6, 2004

#8

• Jul 6, 2004

• #8

Replacing the the VSS on mine took care of exactly that problem!