Mechanics

BLACK POWDER EMITS ONLY WHEN THE VEHICLE IS STARTED AFTER SWITCHING OFF FOR SOME TIME

2004 Mazda Van • 6 cylinder Manual • 2,500,000 miles

My Mazda van is emmiting black powder in the mornings and when the vehicle is started after a long rest. The black powder does not emit when the vehicle is in use or running
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Capricorn2369
February 12, 2011.




I would speculate it is running to rich at cold start ups.

Tiny
Fixitmr
Apr 13, 2011.
The aircleaner may be blocked, you should try removing and cleaning the element. Also check for obstructions in air intake.
Otherwise the auto choke is not working properly and should be re- adjusted
AD

Tiny
Ozzbo
Dec 9, 2012.

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