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3rd Gen Ram Tech2002-2008 Rams: This section is for TECHNICAL discussions only, that involve the 2002 through 2008 Rams Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
When starting 06 Ram 1500 5.7 when cold has anyone ever experienced a whining noise? Does not seem to be a belt. It is a slight whine that goes away quite fast. I am wondering water pump, tensioner or alternator?
Could be the starter just being cold. If you have a garage, try putting a space heater under it a few hours before you start it. See if the noise is still there.