jimraelee Posted January 5, 2005 Report Share Posted January 5, 2005 anyone have issues with heater not getting real hot on a 90 lumina??? ive noticed this since getting the car that the heater will NOT get hot... slightly on the warm side, but not HOT. My damm honda would brun you out of the car if you left it on. Now I know theres no heater control valve so im needing to pull the hoses and check the flow thru the heater core and also make sure the heater hose is pinched or something Quote Link to comment Share on other sites More sharing options...
GnatGoSplat Posted January 5, 2005 Report Share Posted January 5, 2005 Could be a thermostat stuck open. Happens all the time on these W-bodies. Quote Link to comment Share on other sites More sharing options...
DOHCRagtopguy Posted January 5, 2005 Report Share Posted January 5, 2005 Absolutely. Either that or the spring in the stat is getting weak and opening prematurely. I'd change that first before you do anything else and see if it's better. Quote Link to comment Share on other sites More sharing options...
CuttySup Posted January 5, 2005 Report Share Posted January 5, 2005 Same thing happened to me after I disconnected my battery. It must have closed because it is hot now. That could also explain my temp gauge climbing up to 260* shortly after startup, then rapidly dropping back to normal. Quote Link to comment Share on other sites More sharing options...
jimraelee Posted January 5, 2005 Author Report Share Posted January 5, 2005 hmmm its the simple things sometimes, thx guys. Id much rather do a tstat than try to pop off those heater hoses sam whiched back there... Quote Link to comment Share on other sites More sharing options...
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