Da_Droid_Mechanic
Newbie
Anyone know what this is?
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Usually means your running rich.Anyone know what this is?
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Usually means you’re running rich.
Do your eyes burn when it's running and you're down by the pipe?
Check engine light on?
Usually means you’re running rich.
Do your eyes burn when it's running and you're down by the pipe?
Check engine light on?
Sorry, it’s a 1999 gmc surburban k2500 454! It had a new engine installed a year ago.Yep, looks to be running rich.
Pull the plugs and post pics of them, cylinders marked. It ALWAYS helps to know what you are driving. ALWAYS.
Looks like the inside of an exhaust pipe to me.
That explains why that pipe looked totally normal to me.IF you are always into the skinny pedal and hitting power enrichment frequently that will cause soot buildup.