intake runner totally clean???

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Nov 12, 2006 | 10:47 PM

sr71bbjr

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From: DFW

intake runner totally clean???

All of the runners on my dads 408 afr headed motor are dirty except #7..It's totally clean.Any ideas??I'm taking the injectors to get flow tested and cleaned..

Nov 13, 2006 | 04:18 PM

NHRATA01

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From: Dutchess, New York

I'm thinking maybe an injector was leaking/not closing completely. Usually the runners get a mix of oil/carbon. Gasoline is an excellent solvent and cleaner, so if that was the case it would make sense that runner is clean.

Nov 13, 2006 | 04:49 PM

MeentSS02

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From: Dayton, OH

Hmmmmm...let us know what you find out. After doing an injector swap this weekend, I too found one of my runners cleaner than the others. I've also been getting worse fuel economy lately...we'll see what happens. Not getting my old injectors checked though...

Nov 14, 2006 | 03:16 PM