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    strmtrpr73's Avatar
    strmtrpr73 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jan 10, 2011, 07:04 PM
    2003 Chevy S10 4x4 ZR2. With no heat.
    I changed the water pump, after noticing that it was leaking, and thought that might have been then problem. The heater coil hoses are not getting hot. Any ideas?
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #2

    Jan 10, 2011, 07:13 PM

    This link may help:

    https://www.askmehelpdesk.com/cars-t...ml#post2651405
    CaptainRich's Avatar
    CaptainRich Posts: 4,492, Reputation: 537
    Cars & Trucks Expert
    		  
    #3

    Jan 10, 2011, 07:50 PM
    Quote Originally Posted by strmtrpr73 View Post
    I changed the water pump, after noticing that it was leaking, and thought that might have been then problem. the heater coil hoses are not getting hot. any ideas?
    Is the lack of heated coolant to the heater core a new symptom? Or did you just notice it after replacing the pump? You may have a partially clogged or congested heater core that is preventing sufficient heated coolant flow.
    Your truck it now eight years old so if you haven't regularly flushed the cooling system, or perhaps already replaced the heater core, you may need to consider that now.
    imthatguy's Avatar
    imthatguy Posts: 7, Reputation: 0
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    #4

    Jan 11, 2011, 05:26 PM
    Might be air that got in the system when you changed the water pump, it likes to build up a pocket in the heater core and lines going to it some times
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