1995 Mustang 3.8- Automatic transmission slipping? - Ford Mustang Forum
 
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post #1 of 6 (permalink) Old 02-01-2011 Thread Starter
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1995 Mustang 3.8- Automatic transmission slipping?

I've had the car for the past couple of years and it hasn't been an everyday driver until the past 6 months or so. The problem is- when you're driving it at a steady constant speed and the RPM's stay at a steady 1500 or so, such as on the highway staying at a steady 65, or on the regular roads at 55, the car slips into neutral and then slams back into gear after revving up. If you stay on the car pretty good and it doesn't have a chance to settle in the low RPM's it won't do it. It's almost as if when the RPM's stay low and steady it thinks it needs to downshift but then it ends up going right back up. It's very annoying and in a couple cases have almost been dangerous and I have taken it to quite a few mechanics who cannot figure out the problem at all. They said the tranny itself was perfectly fine but I've also read online people with similar issues had a problem with an MLP switch? Which i have no idea what that even is. If anyone could give advice or input it'd be appreciated.

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post #2 of 6 (permalink) Old 02-01-2011
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I have no idea what your problem is, these 94 95 automatics are problem prone junk transmissions. Usually it's the TCC clutch.

Worst case scenario I'd do a 5 speed swap or upgrade to the 96 4R70w trans. Good luck.

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post #3 of 6 (permalink) Old 02-02-2011 Thread Starter
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I've actually considered doing a 5spd swap because i would much prefer it to be a manual transmission, though from what I have read you myswell buy a 5spd car for how much it costs.
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post #4 of 6 (permalink) Old 02-02-2011
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Quote:
Originally Posted by cobraguy_95 View Post
I've actually considered doing a 5spd swap because i would much prefer it to be a manual transmission, though from what I have read you myswell buy a 5spd car for how much it costs.
LOL not even close. This should be accurate for mine. BTW if you can change a clutch you can do this swap. No fab required.

T5 with bell and fork - Used w warranty 115k miles - from LKQ $425
- if you are lucky enough to find one at the u-pull it the cost is about $125 but condition is a gamble
Clutch cable - had already
Computer - U pull it - $30
Flywheel & bolts - U pull it (surface looked nice still) $30
Pedals - U pull it - $15
Lower shift boot - made one with a truck inner tube lol
Upper shift boot - New ford racing cobra leather carbon fiber $45
Shifter bezel - Re-used my old one
Clutch Kit - New OEM style replacement w throwout and pilot bearings - parts store - $160
Transmission harness - modified my old one
Shift knob - stock - had a spare
Fluid - $15?

Total = $720

Sold non-working AODE core +$25
Sold AODE EEC on ebay +$80

Net total = $615


This will vary depending on what you get new, or used from the junkyard or craigslist etc.




The syptoms you describe I do remember my car doing it a few times randomly with the AODE. Eventually mine threw a CEL and started shifing around 1000 rpm higher than before at part throttle. A few hundred miles later it went completely out.

I'm guessing you already tried changing the fluid? I googled these AODEs the other day and one result was a "fix kit" for several known problems with these transmissions. They were internal parts. As you know, internal auto trans repairs are usually very expensive.
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post #5 of 6 (permalink) Old 02-03-2011
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Oh also I gained about 2 mpg with the T5.
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post #6 of 6 (permalink) Old 02-03-2011
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Metalman's got good advice here, I just wanted to note a few things:

If the car is cruising at 1500rpm and you're slowing dropping speed or encounter a slight incline, the car will want to downshift -- it's only natural for an auto to do. If this gets annoying, you can turn your overdrive off (by clicking the button on the side of the stick). Just an option... (I pretty much turn my O/D off every time I turn the car on ).

Also, 4R70Ws are a bit stouter than AODE, as Metalman suggested.

FLASH = 98 V6, chrome yellow, black & blue accents, 146k daily driver
POWER: divorced exhaust with glasspacks; BBK CAI, TB, UDPs; (shift kit in the garage)
STYLE: black headlights, black taillights, black grille, black hood pins, black window tint, blue hood & side scoops, blue billet fuel door, interior billet, 12000k HIDs
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