okay...changed out the waterpump and timing belt--car still overheating. changed the thermostat---still overheating. no leaks, just boiling out of the resv after about 4 ms or so. wth? any thoughts?
this wkend i plan to remove the radiator and flush it all out, dont know if something is up w/airflow or what. help! unfortunately, this is my wifes car and she is starting to think i stink! lol...my ego is at stake here...
james in texas
96 300es

 

White smoke coming out of the tailpipe? May be headgaskets.

 

Boiling coolant in the reservoir? May consider replacing the radiator cap.

 

Ditto with MCE. It probably overheated & blew up before. At any rate it's overheat now & probably blown up. They're giving you the good advice.
Start by replacing BOTH pressure cap[s, checking the thermostat again, and THEN warm the engine up & do a compression / leak down test to see if it's blown up.