24th Aug 2008, 04:37

Mike. Just buy a new radiator. I did and it fixed everything in my 1990 B2600i, all overheating problems fixed. It gets hot quickly if sitting still. Freeway is cooler cause of the air. It acted weird also. Knocked sometimes and other times was fine.

29th Sep 2013, 13:29

Most likely you have a head gasket problem.