Question about Isuzu Trooper
Posted by Anonymous on
Either the plenum gasket is failing, EGR needs cleaning (try this first), or an O2 sensor or even a water temp sensor. I say water temp sensor because if it misreads too hot it will cause the engine to run rich.
Posted on Jan 15, 2013
You didn't say whether it is gasoline or diesel, So I will guess it is a gasoline engine. It sounds as though the fuel injections system is leaking fuel into the manifold or combustion chambers while the car sit idle for a while. This would cause the black smoke on start up. After it burns off the extra fuel the smoke would clear up and the engine would run smoothly. The only way to find out if the injectors are leaking is to take it to a mechanic. If the car runs ok, it would not hurt to drive it like it is until such time you could have it repaired.
Posted on Dec 29, 2010
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Posted on Jan 02, 2017
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