Black smoke , rough idle high RPM

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My car idles rough and black smoke with high RPM .Its a stick shift so it BUCKS at will due to bad RPM.

Visitor

Mar 1, 2010

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What are the best BMW repair shops?

RepairPal Certified shops can diagnose and repair your 1990 BMW 325i. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

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What is your question?

Popular Answer

Black smoke , rough idle high RPM

What is your question?

My car idles rough and black smoke with high RPM .Its a stick shift so it BUCKS at will due to bad RPM.

Visitor

in Lithonia GA

Mar 1, 2010

1 Reply

Popular Answer

Bret Bodason Mar 2, 2010

This is indicating a rich running engine. Check the fuel mixture and fuel pressure, make sure they are within spec and resolve accordingly.

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Popular Answer

What are the best BMW repair shops?

RepairPal Certified shops can diagnose and repair your 1990 BMW 325i. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.