this may sound stupid and way off base but heck you never know,,, did you check your pcv valve? sometimes when a pcv valve is not working properly it will build up pressure in the crankcase and cause all kinds of weirdness. the only reason I sight this is that you say you pulled the dipstick out which would vent the crank case and the cooler air would help the excess gases to cool down.. pcv valve is cheap, to test it pull it out and shake it,, if it rattles its good, just a thought, you never know
If its broke I can fix it. if it isnt broke give me a minute!!!
1980 CJ5, 304 V8, flat top pistons, rv cam, quadra-jet carb, edelbrock intake, hooker headers, Purple Hornies 3" header glasspacks, Solid Driveshaft, t-176 manual 4speed, 3" body lift, 1foot extended front bumper for wrecker winch "no winch yet" 33X12.5X15 Wild Country XRT's on chrome wagon wheels, custom spray paint job, lots of rust, dents, oh and a driver that treats it like a jeep "screw the paint I can make it!" Daily Driven!!!!! Green Jeep Club member #37 Flamed Jeep Club member #1 and President