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Cause of Slow heating system

aoist

By aoist,
in 96-2004 R50 Pathfinders

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aoist NPORA Newbie

aoist

Posted
Posted

My engine worms up to normal temp in about 3 min, but I have no heat until about 20 min. Even then the heat is not very  warm. 

What could be the most likely cause?

Thank you for any and all suggestions?

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CALPATHY NPORA Veteran

CALPATHY

Posted
Posted (edited)

Sounds like the heater core is plugged or less likely a kinked hose.

To add: the diverter valve may not be opening all the way or partially obstructed.

Edited by CALPATHY
add info
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