Funny WOT shift - 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 08-03-2004, 11:24 PM   #1
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Default Funny WOT shift

At WOT, my engine will kinda hiccup during the shift into second. Like a very momentary power loss, lasting less time than the shift itself. No code.

Any ideas?
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Old 08-04-2004, 12:39 AM   #2
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You have the Hypertech PCM right? It may be going wonky?

Only when Hot/Cold etc?
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Old 08-04-2004, 10:39 AM   #3
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Kinda cryptic without a little more info...
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Old 08-04-2004, 11:31 AM   #4
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we need a lil more info so we can get to the point a lil deeper
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Old 08-04-2004, 05:37 PM   #5
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Sorry. The Hypertech is OUT. It almost seems like a miss when it starts to shift, then power comes back, then it finishes the shift firmly. Hot or cold, doesn't seem to matter.
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