This may end up being a longer post than you might care for, but my problems are THAT big. I drive a 94 V6 with a stock engine (except for the cold-air and dual H-pipes), and lately it's been overheating and staggering/ hesitating when in higher gears than first. It has 120+ miles to date. I had the thermostat and coolant replaced just last week, but the car overheated once again. The rad and hoses aren't leaking, but when the car overheats, the liquid shoots out of the reservoir tank, until the temp drops again. My mechanic decided that the water pump is ok because the coolant bubbles at the cap when the Tstat is removed. The crappy news is that it may be a shot head gasket or cracked cylinder head. I took out the T-stat for now to keep the fluids running (a short-term fix), but how do I determine whether the water pump is ok, or whether it's inside the heads without spending loads of money? Also, does that have anything to do with the occasional staggering beyond first gear at WOT? I get the feeling that my car troubles are about to start.
ANY KIND OF HELP OR SUGGESTIONS ARE VERY WELCOME
Thanks in advance.