Your radiator cap is the wrong type, or else the seal is not working. Try a new radiator cap, and be sure you get one for a coolant recovery system. Inspect the sealing surface at the top of the radiator neck, it must be smooth and clean or the vacuum won't pull the coolant back into the radiator from the recovery system. Dick Benjamin ----- Original Message ----- From: <PogoBluesMouth@xxxxxxx> To: <mailing-list@xxxxxxxxxxxxxxxx> Sent: Saturday, June 29, 2002 5:03 PM Subject: IML: 74 running hot > Hi, > The coolant recovery tank on my 74 440 takes in fluid but doesn't return it > to the radiator, what could be the problem? > > Curt Dahl > 74 Imperial 4 door > > > > > > > > / > >