SICKBIRD

My Cars Coolant Resovoir Overflows At Wot?
What Do You Think It Is?

m1key99WS6

iTrader: (1)

Blown head gasket, cylinder pressure getting into Coolant ports.

ss rally red

iTrader: (8)

Very distinct possibility and he should know.

JimMueller

iTrader: (9)

What he said. Mine did the same thing then caused the engine to overheat. Warped one head and the bronze valve guide in the other was moving up'n'down with the valve stem. I've waited a week for a local machine shop to tell NLP IF (not necessarily when) they can properly fix the guide, two weeks and counting without the daily driver.

racecar

One quick test for a blown head gasket is to run the motor with the rad cap off, and the water pump belt off. If it blows bubbles in the rad, gasket is blown.

Spellbound

I had that happen once after a head install. I hooked up some hoses wrong. Thats what I was told anyway....

Slowhawk

iTrader: (12)

I would first check the over flow line and air bleed line hookup on the radiator.The overflow line should be at the radiator cap and the one going to the engine under it.This might sound like common sense but I've gotten 2 cars that had this backwards and it will cause the same problem you have.