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Old 04-15-2005, 16:01   #1 (permalink)
vsby
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96 Explorer Transmission problem

I had a problem where my flexplate broke. The mechanic said that the pump
in the tranmission siezed breaking the flexplate. Is it possible for a
pump to sieze and break a flexplate.

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Old 04-16-2005, 12:01   #2 (permalink)
Jarred Jewett via CarKB.com
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Re: 96 Explorer Transmission problem

In an automatic transmission the trans pump is driven off of the torque
converter. The torque converter is attached to the flexplate. So if the
pump froze up then it could and probably would brake the flexplate, or
brake the torque converter.
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Old 04-16-2005, 13:01   #3 (permalink)
Rob
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Re: 96 Explorer Transmission problem

If the torque converter is expanding, it could cause both. I would have the
converter replaced as well.
"Jarred Jewett via CarKB.com" <forum@CarKB.com> wrote in message
news:b9b66a11bb724ccb8a87a02400ff6f5c@CarKB.com...
> In an automatic transmission the trans pump is driven off of the torque
> converter. The torque converter is attached to the flexplate. So if the
> pump froze up then it could and probably would brake the flexplate, or
> brake the torque converter.



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Old 04-17-2005, 16:01   #4 (permalink)
vsby
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Re: 96 Explorer Transmission problem

It doesn't make sense to me that a siezed pump could cause damage to a
flexplate. THe flexplate is attached to output shaft from the engine. The
t/c is attached to the flexplate and drives the pump. The engine torque
has got to be in the neighbourhood of about 180 h.p.The only reason for
the pump is to suck up trans fluid from the pan. The fluid pressure in a
trans. runs between 50 to 80 lbs.I really don't see how it is mechanically
possible.Pls. correct me if I am wrong.

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Old 04-17-2005, 19:01   #5 (permalink)
Rob
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Re: 96 Explorer Transmission problem

It really doesn't matter. The fact still remains that the flexplate is
broken.
"vsby" <vsby@nospam.myrealbox.com> wrote in message
news:b3a965455611039af88cea5591e26734@localhost.talkaboutautos.com...
> It doesn't make sense to me that a siezed pump could cause damage to a
> flexplate. THe flexplate is attached to output shaft from the engine. The
> t/c is attached to the flexplate and drives the pump. The engine torque
> has got to be in the neighbourhood of about 180 h.p.The only reason for
> the pump is to suck up trans fluid from the pan. The fluid pressure in a
> trans. runs between 50 to 80 lbs.I really don't see how it is mechanically
> possible.Pls. correct me if I am wrong.
>



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Old 04-18-2005, 16:01   #6 (permalink)
vsby
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Re: 96 Explorer Transmission problem

It actually does matter as you don't just throw parts into a vehicle
without determining what the root cause of the problem is or your just
going to have the same problem occur again.

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Old 04-18-2005, 17:01   #7 (permalink)
Rob
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Re: 96 Explorer Transmission problem

Why take it to a mechanic, if you're going to second guess him. Like I said
before, replace the torque converter, along with the pump and the flexplate
and there should be no problem. It could have also been broken before the
pump siezed. Bad driving habits break parts too.
"vsby" <vsby@nospam.myrealbox.com> wrote in message
news:977def9fbbbff53854409bd13dff015b@localhost.talkaboutautos.com...
> It actually does matter as you don't just throw parts into a vehicle
> without determining what the root cause of the problem is or your just
> going to have the same problem occur again.
>



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