cylinder misfiring

Asked by James Mar 28, 2016 at 04:24 PM about the 2004 Pontiac Grand Am GT

Question type: Maintenance & Repair

Hooked my car up to an electronic reader and it
said 6 cylinder misfire.  I change the spark plugs
out and the ignition coil. I don't know what to do.
Someone told me I might need an egr valve. I
checked under the oil cap and it's milky tan
substance. Water is getting in somehow. I also
can't find a leak but I'm loosing coolant/Water.  
Any answers please

2 Answers
1,705

Rocklobsta answered 8 years ago

If your car has the 3400 engine, they are notorious for bad intake gaskets. This can cause coolant to get into the engine/combustion chamber and cause a misfire.

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20

GuruKTYPY answered 4 years ago

I hooked up my scanner and it said I have a engine misfire what would cause that and do you fix that

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