Quote:
Originally Posted by A B Able Truck
The crankcase struggles to maintain vacuum due to piston blowby (air created inside the engine). This is why it is critical to maintain a adequate vacuum supply to the manifold side of the CCV diaphragm. I've removed the CCV caps, installed a retention bar in it's place and watched the diaphragms while the engine is running. It's no wonder the rubber cracks - they're constantly moving up & down.
I find cold weather/moisture (rain) issues on intake systems all the time usually related to dirty air filters (especially on diesels).
If your engine trips out when your dipstick is pulled, it probably doesn't have adequate vacuum to close the diaphragms.
Keep in mind - I'm referring to my V8 N62TU
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When you pull the dipstick you are opening the crankcase-> lets airflow through ccv into intake manifold-> alters the air/fuel mixture after the mass airflow sensor causing engine to trip out
Y dont you try it on your engine
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