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Old 04-16-2008, 06:40 PM   #1
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Default 4L80-E ?'*

Hi Everyone!!

I took a 97 K3500 crew cab, long bed, vortec 5700, out for a test drive today. It has 75,xxx miles on her.

At full throtle,about 4500 rpm'*, ~70 mph, it felt like the torque converter locked up, while at WOT.

Does this sound like it may be a problem? I checked the fluid before we left; it is nice and red. The oil looks good too, but that is a side note, lol.

Is the way the TC locked up something to be concerned about?

Thank you!!

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