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Re: 89 s-10 4.3 backfires through tbi until good and warm
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Originally Posted by poppabear_093
checked vacs and she runs strong when it's warm but until then.... she'll backfire and shut down.  any ideas?
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When is the last time you did a tuneup and changed the cap and rotor?
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1995 Factory Blazer Service Manual for sale, PM if interested.
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