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Yellow Sludge - Throttle Body - Cause!?!?

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Old Jan 25, 2011 | 03:43 PM
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Default Yellow Sludge - Throttle Body - Cause!?!?

Howdy,

In the middle of a cam swap and pulled the throttle body off to get the water pump out and found this!




Theres nothing under my oil cap and no residue in the oil pan (well there wasn't when i changed the oil about 500 miles ago). What the hell could cause this? Should i be worried about a head gasket?

Thanks,

-Karl
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Old Jan 25, 2011 | 03:49 PM
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How cold is it and how far do you drive? Issue is likely the cold weather and short distance driving. Contributors are low temp thermostat and altered PCV system.
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Old Jan 25, 2011 | 06:43 PM
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diagnosed my own problem...my PCV hose was completely torn through in two different spots.
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Old Jan 25, 2011 | 08:05 PM
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the stock PCV system SUCKS BIG GREEN DONKEY DICKS......after a LS6 valley cover install......no crap in the oil cap........no crap in the TB and intake ............and BTW........those stock rubber type gaskets dont last forever......when you pull the TB off replace the gasket .......you will thank me later
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Old Jan 25, 2011 | 09:19 PM
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Yeah its kinda, normal. Cold weather moisture
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