I hear a noise on the front end, like hissing, but loud. After careful inspection I found this:
Fans good
Hoses good
No leaks (now)
I changed to thermostat housing which was cracked, gave it a new gasket, and inspected the thermostat, all good.
When I start the engine cold it sounds great, but after it warms up I hear that hissing noise. The noise gets louder as the RPM rise.
I think it maybe "vapor locked" with the coolant or maybe the water pump...but its NOT over heating at all and no leaks!!
Confused...
Fans good
Hoses good
No leaks (now)
I changed to thermostat housing which was cracked, gave it a new gasket, and inspected the thermostat, all good.
When I start the engine cold it sounds great, but after it warms up I hear that hissing noise. The noise gets louder as the RPM rise.
I think it maybe "vapor locked" with the coolant or maybe the water pump...but its NOT over heating at all and no leaks!!
Confused...