I took heater core cover off again and discovered top band was not tight and bottom band on heater core was not fastened at all. This resulted in about a 3/8 inch to 1/2 gap between the heater core and the flat plastic it was to secure up tight to, therefore allowing cool air to cirulate around it while it was trying to warm the air coming to it. Does this make sense? Should it not have some type of insulation around it where it sits up tight with the two metal bands on top and bottom of core? Thanks Just put new therostat in it, and all vacuum control working fine.
2006-10-26 10:11:59 · 3 answers · asked by mombo323 2 in Cars & Transportation ➔ Maintenance & Repairs
yes it should have a foam insulation which it sets in...the bands should hold it there.
2006-10-26 10:16:26 · answer #1 · answered by Kenneth S 5 · 0⤊ 0⤋
Someone has replaced the heater core,and the dimensions are not EXACTLY the same as the original. Yes, there is supposed to be some sort of insulator between the core and the plenum box. You can use weatherstrip from a hardware store for this purpose, and it works quite well.
Good Luck
2006-10-26 17:52:53 · answer #2 · answered by Ironhand 6 · 0⤊ 0⤋
I would say your problem has more to do with flow through the heater core. It is true that the heater core needs to be fasten down correctly. The core is still in the box so this would be something that would have a minimal effect on heat. some cars like the ford taurus and mercury sable have problems with casting sand trapping in heater core which restricts flow. flushing with a garden hose at the heater core will usually fix this problem. Need more specific info to be accurate
2006-10-26 17:18:54 · answer #3 · answered by Larry S Auto Service c 1 · 0⤊ 0⤋