Question about 2004 Chrysler Voyager
A constant stream of black smoke is visible no matter how much pressure is applied to the accelerator. Fuel economy is very poor and running at approx 23mpg.
Too much gas going through the engine-that's why black smoke. That's all your unburned gas going out the exhaust. Have the fuel pressure tested. A failed pressure regulator will pull extra gas into the engine. Pull off the vacuum hose to the regulator. If any evidence of gas in the hose, the regulator's diaphragm has broken and sucking gas through the hose into intake.
If fuel pressure is correct, have a scan done for trouble codes.
Posted on May 08, 2013
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Posted on Jan 02, 2017
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