you need to include the year and weather its a vortec! if it is a votec then I would bet that if (coolant is in all cyl's) that you have a bad intake or intake gasket these use two piece intakes lower half being aluminum and upper half being plastic and are a popular problem I would guess that your problem will be the lower half where it meets the heads gm uses less bolts than the older v8s
the intake gaskets on these motors are known to break and coolant will run along the intake and head down the back of the motor.
On the driver side of the motor, from fron to rear, are cylinders 1,3,5,7 On the passenger side, from front to rear, are cylinders 2,4,6,8. The firing order is 1.8.4.3.6.5.7.2
usually that problem is caused by a leaking head gasket. The only way to find out is to have a mechanic do a leak down test on all cylinders. This will tell you which cylinder is leaking.
yes, if you have coolant in the oil the oil doesn't give the rod bearings the lubrication that they need, they then overheat, and fail.
An issue for the person that gave you that word. WATERJACKETS, are what the coolant runs through, to cool the motor.
passenger side of motor under exhaust manifold
Freeze plug at the rear of the motor. Between the transmission and the motor.
A 1967 Chevy Impala with a 283 motor should run at a temperature between 180 and 195 degrees. The temperature is set by the thermostat which controls coolant flow.
remove top rad hose on motor and then the coolant flange the thermostat is under the flange
where is the temperture sensor located on a 2002 chevy trailblazer with a 4200 motor
motor mounts?
Either a blown head gasket or a cracked block possibly