white creamy stuff under oil cap

[16pickup91]

hey im new here but i have a 91 toyota pickup 4x4 22re and i noticed this white milky stuff under my oil cap in my dipstick and under valve cover also my overflow tank bubbles when its cold and a lot of white smoke with some water droplets coming out of my exhaust. ive been reading online and it all points to head gasket or condensation but i do a lot of 2 minute trips and its 40 degrees Fahrenheit outside its never overheated and its a brand new motor another thing that might be important is that i noticed this after i hollowed out my cat and drove through some deep water maybe 3 feet deep. please help me thanks

[sc2dave]

try running it til it gets really hot,not overheating.You are building up too much condensation and need to boil it off.

[Zembonez]

What does the oil look like? How long since it was changed?

[Kagato91]

Short tripping will definitely cause moisture to build up in the engine.The bubbling coolant tank could be air.Are you losing coolant?Is it smoke or condensation?A bit of moisture dripping from the tailpipe is normal for these trucks.Is it still "smoking" when the engine is at operating temp?

[93BetterThanTheRust]

The milky oil and white exhaust are symptoms of coolant getting into the engine, usually through the head gasket.

Sniff the white exhaust to see if is has a sweet glycol smell.

Let the engine idle with the radiator cap off (don't remove it hot.. duh) and watch for bubbles and a build up of pressure or gushing coolant.

A leaking head gasket will allow the cylinder to pump air/fuel into the cooling system on the compression stroke and will take coolant into the cylinder on the intake stroke or after the engine is shut down. The coolant will seep past the rings and then down into the crankcase.

The engine will tolerate a small leak for a while, it may mostly seal once its warm, but ignoring the problem might eventually leave you overheated, stranded and paying a lot more to solve the problem.