To much oil in an engine can cause it to flood which will then lead to blowing seals. But it should not effect how the car idles.
A faulty gas cap could cause the check engine light to come on but it would not cause a rough idle or engine noises. Start with having your local auto parts store read the codes. The codes will help determine why the check engine light is on.
If the check engine light has not come on, it is most likely a vaccume leak.
No, the check engine light does not come on because your gas is half way full. The check engine light will come on if there is a problem with the engine.
With my Forenza , Sometimes when backing the check engine light will come on and stay on ,and the car runs rough as it is low on power . After Turing it on and off a few times , the check engine light will turn off and the car will run normal . What's the cause of this .
Without having it checked for codes, It is impossibe to answer.
If an check engine light does not come on it is a good thing. When your check engine light comes on, it means you need service done on your vehicle.
No the check engine light will not come on
Engine coolant temp sensor. I would check codes if you have a ECT code replace the sensor. does the check engine light come on with key on engine off, If it doesn't replace bulb. If the engine light works check fuel preasure,
No, the check engine light has nothing to do with the oil level in the vehicle. The check engine light will come on when there is a problem with the emission system. The red oil warning light will come on if your vehicle is low on oil.
If it has a downstream O2 sensor the check engine light will come on but if it does not the light may not come out. In most instances it will set the check engine light.
95 s10 blazer has a miss and check engine light does not come on and exhaust smells gassy what could it be
There are lots of different reasons a check engine light can come on does the car feel any different?