overdrive problem - Page 3 - 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 05-10-2006, 12:27 PM   #21
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Quote:
Originally Posted by 94BonnieSE
can coils be affected by heat?
They shouldn't, just like the wires, they are engineered for their environment.

However a good look over is always good if you suspect an ignition issue. Cracks can develop in coils.
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Old 05-10-2006, 10:44 PM   #22
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FYI: I have a '97 SE that truly did have the TCC lockup/shudder problem - but the '97s had a TSB on them regarding this very problem. I suppose it doesn't apply to the '96s. I noted that when the car was cold, or the weather was, that it would do much better. When it got hot, it freaked out. The worst was my trip home from work, which consists of about 1/2 hour of stop-and-go traffic in the heat of the day, followed by another 1/2 hour of freeway driving. It would heat up enough during the first 1/2 hour, that when I got highway speeds, it would shudder - and it wouldn't cool down enough to start behaving correctly the rest of the trip. I initially installed a transmission cooler, which helped. But, it didn't cool much in stop-and-go traffic, as the heat didn't get removed from the cooler. I added an electric fan on the trans cooler, triggered by the driver'* side fan. NOW, even in 95 degree heat, it stays cool enough to almost never act up. $120 for a fan, cooler, and relay sure beats replacing the valve body (as recommended in the TSB). And it helps the overall longevity of the trans regardless.
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Old 05-18-2006, 01:51 AM   #23
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ok well i have a quick question that took me a while to realize...could this problem b a temporary thing due to the fact that the car has been sitting for a few months??
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