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Re: 3800 V-6 olds 88 lss 96 tc light and misfiring again
Ignition coils are very likely suspect (because they are susceptible to rain, especially when on their way out). It is possible (I'm assuming TC stands for Traction Control) that the computer is sensing a misfire, and blaming it on the TC system, which likely relies on signals from the ICM to function properly. But, I definately recommend checking to be sure that the coils are working first, and that the spark plugs and cables don't need replacing again.
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1986 LeSabre Limited L67 sleeper
 
Fully ported & polished, shift kit, CAI, F41 polyurethane suspension, headers & 3" exhuast,
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