Running rich

[kevan.gibson.9]

I have a 1994 chevy 350 it's running realy rich I thing I can smell gas out the tailpipe and there is black smoke and black dust over my exhaust tips so why would it be running rich ?


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[lha1992]

Probably your CTS (coolant temp sensor) has gone out. Usually when these tbi trucks start running rich is because the CTS goes outta wack. Also have you given the engine a tune up possibly? Maybe check timing?

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[kevan.gibson.9]

I have changed the temp sensor a about a year ago along with tune up but latly I have Ben having overheating problems and oak how to cheak timing


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[kevan.gibson.9]

How do I test my timing ?


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[SAATR]

I have a 1994 chevy 350 it's running realy rich I thing I can smell gas out the tailpipe and there is black smoke and black dust over my exhaust tips


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Is there a question here?

 

[kevan.gibson.9]

Yea why is it running rich? sorry


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[DR CHOP]

Coolant temp sensor or oxygen sensor might be worth a look. Do you have a misfire?

 

[kevan.gibson.9]

Mabye cus it idles a little rough and 1 side of my exhaust sounds diffrent than the other


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[IOWNJUNK]

Rough idle, one exhaust sonds different, overheating........
Sounds like headgasket. Water in oil or oil in water? How do plugs look?

 

[kevan.gibson.9]

Oil fine and it's had a pressure test it holds good pressure


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