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my truck was doing the same thing before i had the choke set right, because it was partially closed, making it flood out and run rich
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∙ 16y ago
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91 Chevy 4.3 running rich WHEN WARM UP?
If the oxygen sensors for the 1991 Chevy 4.3 is running rich when it is warmed up it is best to have the sensors replaced. Once the sensors are replaced this should resolve the issue.
How can you tell if an engine is running lean or rich?
Too rich and you will get black smoke from exhaust. You can also read the spark plugs. way too rich and the engine will bog down or flood out in extreme situations. If it's running too lean, the rpms will get erratic.
What does the 27 code mean for 89 Toyota truck?
Engine is running rich
What does engine running rich or lean mean?
An engine runs by the combustion of a mixture of oxygen and gasoline. If this mix has too much oxygen, it is said to run lean. When the mixture has too much gasoline in relation to oxygen, it is running rich.
Why Some black smoke comes out of 97 Chevy truck with 350 5.7 vortec engine?
Black smoke indicates the engine is running rich. Could be many things....TPS, CTS, bad injector, MAP sensor, time for a tune up.? Check engine light on??
How do you fix truck running rich?
We need to know the year, make and engine to help you.
What is ect used for?
ECT is the abbreviation for engine coolant temperature.There is a sensor that senses coolant temperature and relays it to the engine control module to let it know how rich or lean to set the air fuel mixture. It acts like the old choke on a carburated car.
Why does a Chevy 350 eng smokes black?
Black smoke means access gasoline, it's running rich.
What would cause black smoke to come from the tailpipe of a 97 Chevy Cavalier?
Black smoke usually means the engine is running too rich. The fuel/air mixture is incorrect. Blue smoke is oil burning.
Why does engine run rich and not accelerate?
It's running too rich, this has reduced the combustion temperature, thus reducing the power available to drive the wheels. A 'Colour Tune'® plug, will allow you to observe the combustion process directly. The flame in a cylinder of a correctly tuned engine will be a pale blue. In an engine that is running rich, the flame will be yellow or orange.
The colour of the exhaust gas emitted from a petrol engine that is running very rich is likely to be?
Black
Blowing black smoke out of tailpipe?
Assuming this is a gasoline engine, it is running rich from excess gasoline.
