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While driving egine check light comes on... starts to cough and splutter, and blows black smoke from exhaust

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Well the black smoke indicates a rich air fuel ratio, when the check engine light is on take it to autozone and ask them to pull the code, they will do it for free and tell you the malfunction the ecu is picking up then just replace that part or get back to me and i will help you with what ever code your car is pulling. take care

Posted on Dec 11, 2008

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Why are my glow plug light is flashing all the time and on first start in morn it coughs and splutters and smokes bad from exhaust wat is wrong had coolant temp sensor changed today please help im a female...


I think you are referring to a different indicator light. A glow plug is a Diesel engine part and I do not think an American version has a Diesel. There is a "check engine light" which is an indicator of trouble and will display as you described.

Go to a Advance , Autozone, or Oreilys autoparts store. You can ask for a free scan to diagnose your problems. The coolant sensor can relate to a cold start problem. Some models use 2 temperature sensors. One operates the dash gauge and the other operates engine controls.

You will need to know if you replaced the sensor to the dash gauge instead of the engine control sensor. Both use heat to set engine controls.

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Dear Sir,
As you said engine light is on and misfire with white smoke, it clearly symptom of poor ignition spark may cause of any wire got disconnected or spark plug faulty.
white smoke comes only in case no spark at spark plug and un burn fuel throwing from silencer. check wire and spark plug if any issue let me know. thanks.

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2001 chev blazer v6 4x4 Yesterday driving along it coughed and spluttered then stopped.After a couple of minutes it started but was running rough with blue smoke coming out the exhaust. It idled okay but...


It appears you have possibly a bad MAF sensor. It's in the intake duct. If its dirty, wash it off with CRC electrical cleaner. Do not touch, rub or brusj. dries quickly. See if this helps. Good Luck, Ned

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Hello!
There are two differnt reasons for black and white smoke coming from the tail pipe.
Black smoke means fuel runs rich (car getting to much gas). Check fuel pressure/air filter.
In some cases the white smoke means car is burning oil or transmittion fluid. Have tem checked/replaced.
If you can feel a smelly smoke it can be catalytic converter.
In a worsest scenario if car blowing white smoke it can be engine coolant is getting into an engine cylinder from a bad head gasket ,or a warped/cracked head. So you need to keep your eye on coolant level and check your engine for overheat. Also might be good to check your oil for traces of coolant (on a dipstick it would be a milky substance mixture of oil and coolant).
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