[GMCnet] Don't think the heater is at top performance. [message #328712] |
Tue, 30 January 2018 17:41 |
BobDunahugh
Messages: 2465 Registered: October 2010 Location: Cedar Rapids, IA
Karma: 11
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Senior Member |
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I found that my radiator flow is being restricted due to internal corrosion. Today I got to thinking that I'll bet my heater core is in the same condition. Next week I plan to change out the radiator. I need to run my inspection camera inside the heater core by pulling the heater hose off. Never thought of his relationship before. Bob Dunahugh 78 Royale
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Re: [GMCnet] Don't think the heater is at top performance. [message #328715 is a reply to message #328712] |
Tue, 30 January 2018 19:08 |
JohnL455
Messages: 4447 Registered: October 2006 Location: Woodstock, IL
Karma: 12
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Senior Member |
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You can "see" heater core by disconnecting heater hoses from engine and backflushing with the core "feed" hose in an empty washer fluid jug to catch the evidence. I use garden hose in the return line and start slowly then increase as junk comes out to try to not exceed 15 PSI or so.
John Lebetski
Woodstock, IL
77 Eleganza II
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