Question about 1999 GMC Sierra

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Nipple on fitting on heater core tube broke off. 1999 gmc Sierra piuckup Need to know how to remove old fitting to replace

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  • Master
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There is no replacing of the inlet outlets on a heater core. You will have to replace the heater core.

Posted on Jan 30, 2010

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  • GMC Master
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If its the nipple behind the alternator that goes into the manifold u will need to be extremely careful because the nipple gets corrodes and breaks off and the aluminum manifold has a tendency to break while trying to remove the threaded end with an easy out the part is only 20 bucks but to replace it is a nightmare good luck

Posted on Jan 30, 2010

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