Quote:
Originally Posted by Clois Harlan
Sal couldn't you feel the difference in the inlet and outlet hoses if the pump was rotating backwards? If there was no movement of fluid wouldn't both hoses be soft and a lot cooler than normal?
Clois
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Well theoretically yes, but I don't think reality would match that.
When the car is cold, the thermostat would be closed, so you wouldn't have flow, and there'd be no heat to build pressure. Once the motor warms up, you'd have flow (or lack of), but the motor would be hot and you'd have pressure.
Once the thermostat opens, even with no flow, you'll still get thermal heat cirulation so it might be hard to tell that way. It could work, but it also might not. I've been through enough cooling system nightmares to learn that the hard way.
Another thing to keep in the back of your mind while checking this stuff.... the head gaskets. You CAN install 5.0 gaskets backwards, and it will cause overheating issues because you block off the water passages to the heads that way. I've seen that one plenty of times too.