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1winobud
Novice

Jan 14, 2015, 4:57 PM

Post #1 of 7 (836 views)
Heater Sign In

I have a 2000 Siverado, 5.3 ltr engine, 235,000 miles. My heater does not put out hot air, only luke warm on fan speed 2. If fan speed is increased, the air gets colder. Also when stopping for light or etc. the air gets cooler. Can anyone help me?


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Jan 14, 2015, 5:04 PM

Post #2 of 7 (821 views)
Re: Heater Sign In

How is your coolant level? If the level is good, are both heater hoses hot when the engine is at operating temperature?





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


1winobud
Novice

Jan 14, 2015, 5:46 PM

Post #3 of 7 (809 views)
Re: Heater Sign In

I will check and let you know as soon as I can. Thanks BUD


1winobud
Novice

Jan 14, 2015, 5:58 PM

Post #4 of 7 (806 views)
Re: Heater Sign In

Coolant level is good , one hose is hot the other hose is cold. The hot hose is the one one the front of the engine.


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

Jan 14, 2015, 6:19 PM

Post #5 of 7 (797 views)
Re: Heater Sign In

You could have a partially clogged heater core. Try reverse flushing the heater core out with a garden hose. If your coolant is old, it might be a good idea to drain and flush the entire system out.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on Jan 14, 2015, 6:20 PM)


1winobud
Novice

Jan 14, 2015, 6:29 PM

Post #6 of 7 (791 views)
Re: Heater Sign In

THANKS FOR YOUR HELP. WILL KEEP YOU POSTED WITH RESULTS. BUD Blush


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jan 14, 2015, 6:39 PM

Post #7 of 7 (786 views)
Re: Heater Sign In

Sounds like some stale Dexcool sludge.



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