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White gas smelling smoke when restarting a warm motor

Car runs good but puffs a white fuel smelling cloud only when restarting,o.k. when cold in the morning. once underway white clears, loading up and need advise on what may be wrong
thank you frank

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  • teadge May 11, 2010

    year? carb?

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Check o2 sensors

Posted on Dec 28, 2008

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The likely culprit is a fuel injector. If your injector is faulty or stuck open and allowing more gas than it should into the cylinder it will cause white smoke and enough gas will cause a gas smell and may end up soaking your exhaust system and cat converter. On mine after replacing the injector the gas in the cat converter took a while to work its way out and stop smelling and smoking. 
Pull your spark plugs and the one wet with gas is from the cylinder with the broken injector. Replacing that injector should solve the problem. However, if you're not comfortable working on the pressurized fuel system have a mechanic do this. 
Be sure if your do remove the injector to do everything to prevent any parts falling into the cylinder. On mine the injector had cracked and brittle plastic casing disintegrated and bits fell into the cylinder causing more headaches. 
Your'e supposed to replace all fuel injectors as a set to ensure idenical fuel delivery in all cylinders, as over time the jets wear uniformly. Adding one new injector with a new (narrower) jet can sometimes throw off sensors and calibration. However, I replaced just the bad injector and all was well.
Hope this helps.

Posted on Dec 28, 2008

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