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cbrad
Dodge Dakota
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4/05/2004
19:14:43
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 Subject: Black smoke??
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Message:
Hi, I have a 1993 dakota with the 3.9L V-6.
When I start my truck it blows black smoke out of the exhaust.Then it almost quits until it builds some revs and then it will stay running. Then after a few seconds it turns to blue smoke. Everytime I rev on it,it will blow black smoke again. Whats wrong. Thanks for any help.
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slopehead
Dodge Dakota
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4/05/2004
21:47:10
|  RE: Black smoke??
IP: Logged
Message:
black smoke= too much choke at start up
black smoke= runnin way too rich
blue smoke= oil from cylinder walls being washed off by too much gasoline in cylinder, then burning off and causing scoring in cylinder
blue smoke= bad valve seals
blue smoke=bad rings
start looking there, then there are a few other places that happen less from
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gen1dak
Dodge Dakota
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4/06/2004
00:54:52
| RE: Black smoke??
IP: Logged
Message:
I'd start with the MAP sensor, then the O2 sensor. Make sure to disconnect the battery when replacing these parts so the computer will reset and see the new parts when you start up.
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