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Burning too much gas...spark plugs are probably due to be changed. The white is just condensation ... and if you are smelling gas that means there is some latent unburned gas in the exhaust ..... thus dampness and condensation. sounds to me like it is just running normal on the choke does the smell and white smoke stop when vehicle is up to proper running temperature

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โˆ™ 2007-02-15 14:27:27
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Q: You have a 1994 Blazer starts cold blows white smoke out the tailpipes that smells like fuel What might be the cause?
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