Visitoron Jul 17, 2011
I just did the same procedure on my 99 lhs I added a radiator took care of the problem, remember they only have a 1 core radiator, as long as your fans run thats a good thing mine had a connection problem intermmintent, ALSO did you purchase a rebuilt waterpump or new, believe it or not that may also be a problem, if you have performed the bleed ck the air should be gone, if you performed it correctly. Sounds to me like a plugged radiator or a partially blocked heater core. If you tried to put some additive in the cooling system, then you will need to flush it out and hope for the best, that the heater core isnt plugged or restricted, I know this will sound strange, but pull the radiator out, pour one and a half gallons of muratic acid in it and let it set, if this works and unplugs the radiator then you gain if not you have lost nothing, replace the radiator, the acid will not harm a aluminimum radiator, it actually will clean it out better than they do at a shop, Ok last of all if this doesnt get it, start looking at compression, a blown head gasket, cracked valve seat,warped head, or intake gasket will cause a bad rise in temp settings, even a outside crack n the head where it is not internal, you may not be able to see it, but you may be able to hear it after you shut the engine off, a warped exhaust manifold, lean mixture in the fuel injection system (PCM) mass air flow, o2 ensors up stream dwn stream,
THERE S A BLEEDER SCREW UP FRONT ON TOP OF ENG INTAKE, WHEN FILLING OR FLUSHING RAD AND THEN FILLING IT,YOU HAVE TO UNSCREW BLEEDER ,WHILE FILLING AND LET ALL THE AIR BUBBLES OUT PLUS PINCH OVER FLOW HOSE OFF WHILE DOING THIS