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Old March 27th, 2007, 08:04 AM   #1
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Default Torque Conv. Slipping, 94 Explorer

For about the past week or so, I've noticed the torque converter is not locking up as it should. Sometimes it will, then unlock after driving a few miles, and othertimes it won't lock at all. Is this the start of the A4LD problems that plague the Explorer?
I'm going to flush the tranny and see if that helps. The ECM does not show any codes for the trans, only the Air Charge Temp sensor being out of spec.
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Old March 27th, 2007, 09:04 AM   #2
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could be the solenoid pack or a wire issue. And the trans is not cheap to rebuild.
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Old March 27th, 2007, 12:19 PM   #3
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Originally Posted by KILLER"B"468 View Post
could be the solenoid pack or a wire issue. And the trans is not cheap to rebuild.
x2.....

Most the "plague" with the a4ld is the fact that it's a week trans, plus it suffers numerous pump seal issues because of the way the bell housing/TC pilot bushing are.....I'd personally recommend looking into an alternative transmission (such as the 5 speed manual) to swap to before rebuilding that one (unless you plan to sell soon)

Also, are you sure it's T/C lock up?? OD is also controlled electronically on that trans as well.......

Only real way to be sure whether or not it is in fact the converter itself would be to do some electrical checks, as mentioned already
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Old March 27th, 2007, 03:52 PM   #4
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TSB 97-22-4

Straight word for word what you say is happening.

Replace the fluid pump support seal. Part number F77Z-7L323-AA
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Old March 27th, 2007, 10:45 PM   #5
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TSB 97-22-4

Straight word for word what you say is happening.

Replace the fluid pump support seal. Part number F77Z-7L323-AA
I have seen LED brake light bulbs cause this same issue. If it is the pump seal the trans has to come out anyways.
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Old March 28th, 2007, 08:09 AM   #6
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Ok. I'm driving down the road, it's shifting fine, rpm's are at 1800 in OD at 55mph. Out of nowhere, I feel a shift and the rpm's jump to 2100. If I throttle it, the rpm's climb to 2600. If I shift it manually, I can feel it downshift in each gear. I know it's not the OD. If you play with the throttle, you can feel the T.C. stalling. It's like I have a 2600 stall conv. all the time.
It did it to me a few days ago. I take it this am, and it's back to normal. If I throttle it, the rpm's don't change unless I hammer it and kick it out of OD.
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Old March 28th, 2007, 11:54 AM   #7
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is the fluid burnt?
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Old March 28th, 2007, 06:13 PM   #8
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I have seen LED brake light bulbs cause this same issue. If it is the pump seal the trans has to come out anyways.


Really?
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Old March 29th, 2007, 12:27 PM   #9
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Fluid looks and smells fine, I haven't changed it yet. It has a tranny cooler on it from the factory. It shifts fine, no problems with that, not even any delay from park to reverse. I cant imagine the trans is bad.
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Old March 29th, 2007, 02:21 PM   #10
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Originally Posted by MuddyPaws View Post


Really?

when we get warranty returns, one of the first things we ask the dealer tech to check is if the tailights/brake lights are stock and functioning correctly.


reason I ask about fluid is once the TQ C goes bad, the trans will overheat very fast and burn the fluid.
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Old March 29th, 2007, 03:00 PM   #11
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I had a set of LED's in my 95 F250 and the TC would not lock up in OD and the cruise would not work. The computer read it as the brake pedal was being pressed.
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