heater core in vehicle bad will it damage vehicle by not replacing on 2004 Chevrolet Silverado 1500

Had relay switch for heater replaced last year. only use heater in winter time as it is usually warn here in spring and summer. lately i've seen vapor coming from vents when heater is cut off. windows have fogged up, seen water/liquid leak slowly in passenger floorboard. truck ran hot once last week, but after i pulled over and let it cool down 20 min, temp went back to normal. monitored and added antifreeze to vehicle and vehicle runs in normal temperature range. currently saving money to have core replaced, but truck is my only vehicle. worried about engine going out by prolonging repair. any advice? only been seeing vapor from vents for about a week.

by in Rock Hill, SC on March 25, 2013
2 answers 1 comment
ANSWER by on March 25, 2013
Bypass the core by hooking the heater hoses together with an adpter at NAPA. Wont hurt a thing, jus NO heat! If ac works that is a great defoger in a rain storm, set to defrost.
COMMENT by on March 25, 2013
thanks for the info, i'll have to look into that.
ANSWER by on March 26, 2013
bypass heater core by connecting both heater hoses together under hood.i see this all the time and will not cause any issues