I have a 2003 Chevy suburban a puff of smokes comes out of air box when starting

Asked by Sep 07, 2013 at 07:35 PM about the 2003 Chevrolet Suburban LS 1500 4WD

Question type: Maintenance & Repair

I have a 2003 suburban with 170,000 miles on it when starting it puffs a bit of smoke out
of the the air filter box

1 Answer

59,145

If it starts and runs normally I wouldn't worry about it. With 170,000 miles on it you're starting to see some blow-by. Make sure your PCV valve and PCV hoses are clear and in good condition. If they are I'd consider it normal. Just part of getting older. HTH. -Jim

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