Just noticed that my upper radiator hose gets "Sucked in" when the car sits overnight. When I start the car and the engine warms up, the hose slowly expands back out. I never noticed this on my other cars in the past. Is this normal for other Gs? It looks weird. I don't have any overheating problems, so the cooling system must be working ok.

 

Your rad cap may not be venting properly. Have it replaced.
C.

 

Guess I'll have to take it in. When I loosen the radiator cap, the hose dose expand back out. I didn't think it could malfunction. It looks so simple. Thanks.