what causes a sudden onset of black sooty exhaust and rough, wavering idle.?

10

Asked by hoople Dec 30, 2012 at 06:35 PM about the 2013 Volvo XC70

Question type: Maintenance & Repair

2 Answers

10

I disconnected the battery terminals and joined them together for five minutes, allowing the settings to reset (to default settings?) per a message i read on a Volvo chat sight concerning black sooty exhaust issues, and SHAZAM!, WHEN I RESTARTED THE CAR ALL WAS PERFECT! No idle problems, no rough runnng, no nothin'! I can't believe it. Volvo VooDoo, fer sur, mate.

1 people found this helpful.
176,065

It's a 2013 Volvo and you're touching the wire together? Take it back to the dealer and get it fixed under warranty. Touching wires didn't fix the problem, it cleared up some symptoms. Do you want to go around disconnecting the battery for the next few years?

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