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Old 11-22-2021, 10:23 PM   #1
67swb72klb
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Join Date: Dec 2010
Location: livingston co.mi
Posts: 2,449
2001 slow to heat

My 2001 RCSB with the 5.3 just does not build heat fast in the colder months even if its just in the 40s let alone when we get to the sub zero temps that are around the corner.
Takes forever to get up to just under the 210 mark
Replaced the T stat once and the water pump got replaced when it started leaking neither one made any difference

Any ideas?
Thanks!
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