trans loseing 4 gear - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat

1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 08-28-2006, 05:12 PM   #1
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Default trans loseing 4 gear

finely got a new trans ive put 40 miles on it the thing is it is loseing 4 it will shift fine for about 15 minets then it kicks its self out of 4 if i cut the car off and then back on it will work fine for another 15 or so minets it is the same year 1995 and the same 615bxw trans code on the tag i mean it goes to 3 tell i restart it then its fine like i said above
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Old 08-28-2006, 05:17 PM   #2
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Got a warranty?

If the PCM sees too much slip in OD lockup (tcc applied), it'll kick OD off. You need to get a scantool on the car and drive it in OD. Let us know how many rpm'* of slip you record in lockup.
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