How do I tell if there too much blow by on a cummins 5.9l diesel I'm looking for a 2006 0r 2007 Thanks

Asked by Aug 24, 2013 at 09:24 PM about the 2006 Dodge Ram 2500 Laramie 4dr Mega Cab SB

Question type: Shopping & Pricing

I'm looking for a 2wd 2005-2007,  4 door with automatic trans preferred. 4door. low blowby

I'm not sold on 4wd, more maintenance and less MPG, does not have to be a laramie

1 Answer

385

pull the oil cap off while it's running and turn it upside down and set it on the fill hole. If it blows the cap off or is spitting oil of the hole then it has too much blow by.

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