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Old 09-24-2013, 12:26 AM   #120

LimaCharlie's Avatar
Drives: 2011 Camaro SS/RS - 2004 Silverado
Join Date: Mar 2010
Location: San Antonio, TX
Posts: 2,853
Electrolysis is one of the main reasons for heater core problems. Poor electrical grounds, low coolant levels, and poorly installed aftermarket electronics can all cause electrolysis.
For everyone with heater core issues......have you checked the level of your coolant lately? Do you have any aftermarket electronics (i.e. sounds systems) installed in your car? I'm curious to know if these are trends with heater core failures.

Here are some links on what I'm talking about:
2011 Summit White Camaro 1SS/RS
-6.2 LS3, TR6060, 3.45, G80

2004 Black Silverado 1500 2WD Regular Cab, Short Bed
-5.3 LM7, 4L60E, 3.42, G80
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