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2004.5 48re lockup in second gear?

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Old Apr 2, 2004 | 05:57 PM
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justdirt
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2004.5 48re lockup in second gear?
I thought I read somewhere that the 48re torque converter will lockup in second gear. My 2004.5 won't. Any info on this?
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Old Apr 2, 2004 | 08:41 PM
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I believe it's only when Tow/Haul is engaged and you manually downshift into 2nd using the shift lever.
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Old Apr 3, 2004 | 10:12 PM
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Thanks jlasich, I'll give it a try.
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Old Apr 4, 2004 | 12:05 AM
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dunno about the tow/haul......i`ll call it OVERDRIVE....but if you down shift into 2, it will go 1st, 2nd, TC lockup. but you gotta be in 2
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Old Apr 7, 2004 | 12:20 PM
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Tried shifting into second with tow haul on. The toruqe converter does not lock up. It will in third and fourth but not second. Can anyone verify that the 04.5's do or don't lock up in second?
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Old Apr 7, 2004 | 04:23 PM
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My 03 47RE does not lock up in 2nd, only 3rd and OD.
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Old Apr 7, 2004 | 04:34 PM
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My 03 HO 48RE locks up in 2nd.
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Old Apr 8, 2004 | 10:25 AM
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mine locks up in second if im in 2 whether the OD buttons on or off.
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Old Apr 8, 2004 | 01:45 PM
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How do you know for sure? Just by feel?
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Old Apr 8, 2004 | 02:34 PM
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If you own an 04.5, the TSB for the hestation also adds the convertor lockup. see it here: -under pictures

www.maf.mesanetworks.net
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Old Apr 8, 2004 | 03:43 PM
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From: Provo Utah
afacey, thanks for the info. It looks like the early 04.5's torque converter won't lockup unless they have the tsb performed on them. I'll have to get it done to mine.

Thanks again!
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