Black soot on rear bumper

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Jun 11, 2008 | 02:37 PM

86bird86

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Joined: Aug 2007

Posts: 27

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Black soot on rear bumper

Can anyone tell me the cause of constant build up of soot on my back bumper?

Jun 11, 2008 | 03:14 PM

blackandgoldl69

Senior Member

Joined: Jun 2007

Posts: 428

Likes: 2

From: Elizabethtown,Ky

Car: 1984 camaro z28

Engine: L69 H.O

Transmission: 700r4

Axle/Gears: 3.73

Re: Black soot on rear bumper

you might be running rich and depending on how your exaust tips are pointed the soot out of the exhaust could be getting blown onto the rear bumper

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