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Pontiac 3400 misfire problem one new coil pack new plugs and wires on still running bad have too press gas too start now bad fuel mileage unburnt fuel smoke when engine starts for a few seconds then stops smoking fluctuations in Rpms at idle car sit for a few years before this

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Some of the cylinder wont get spark, faulty spark plug, wire or coil. To check pull all spark plugs out, plug them to the wires and put on the engine top and then cranck the engine to see which spark plug not giving a spark

Posted on Apr 16, 2014

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SOURCE: 2002 Ford Taurus SEL, DOHC Misfiring

Disconnect the battery completely, try turning the key with the battery disconnected. Put the battery back together. The check engine light should be off now..

Posted on Aug 15, 2010

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SOURCE: 95 Chevy Blazer 4.3 white smoke at idle

my 1988 chevy blazer 4x4 smokes on cold starts till it warms up then it goes away what is causing it

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SOURCE: 99 saturn sl1 hard to start if sitting for over an hour

you have leaking fuel injectors they are fouling out plugs.

Posted on Apr 22, 2009

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SOURCE: Nissan b14 rough idle, black smoke

i have a nissan b-14 idle roughly sometimes cut off when in traffic. any solutions???????

Posted on Dec 01, 2009

kapishtech
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SOURCE: White smoke coming out of the exhaust when starting the engine?

Its the problem of oil.The oil is getting burned out. The vehicle is either burning oil or it is moisture in the gas chamber if you notice white smoke from the exhaust. This is a common possibility.but in some cases this white smoke is not due to oil burning.In that case   White smoke from the exhaust is a symptom of coolant entering the combustion chamber. Normally this is a sign of a blown head gasket or cracked head. And  this is not a common problem must be repaired immediately. You must STOP driving this vehicle or you will cause serious engine damage. you will have to get both this possibilities checked.
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Posted on May 20, 2010

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