potentially serious problem. help?

[bowens1414]

well in doing a boost leak test with my neighbor tonight i discovered a potentially s***** problem. doing the test i have air coming out of the oil cap along with my dipstick popping out. my pcv valve checks out i cleaned it so it works fine but that didnt fix the dipstick. now i bought the car used and one of the previous owners did a emissions delete (i believe) meaning almost all the un needed vac lines were deleted. now this test showed that air is pressurizing the crankcase. is there any other entries for air to get there other than bad pistons/rings? i will be doing a compression test soon to confirm that. any help will be greatly appreciated

cars a 97 gst

 

[snowborder714]

Please try again with a more descriptive thread title. A generic thread title like this does not help me when browsing new threads to see if I can offer help or when searching old threads for info to help myself or others.