98 Grand Caravan Heater Question


Old 03-01-13, 06:17 PM
Thread Starter
Join Date: Mar 2008
Location: Boulder, CO
Posts: 1,012
98 Grand Caravan Heater Question

As I move the temp lever right for more heat, the blower output reduces. Is this normal? I've had both a independent shop and the dealer say they didn't know and really didn't want to tear the dash apart. Any other owners out there America?
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Old 03-01-13, 08:05 PM
iceman681's Avatar
Join Date: Jul 2012
Location: usa
Posts: 436
it does reduce but slightly. this is due air now flowing through two heat exchange units(heater core, evaporator). air always flows through the evaporator as it is used for a/c and defrost. i would say if it is a big loss of flow them you might have something blocking the passage. thats weird to happen because it would have to get passed the evap. first. if in doubt find another van like yours and compare
Old 03-02-13, 04:19 AM
Join Date: Feb 2013
Location: United States
Posts: 197

Iceman681 is right. However the reduction in blower output cold be a blend door issue, so rule that out as well.

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Old 03-02-13, 11:10 AM
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Join Date: Mar 2008
Location: Boulder, CO
Posts: 1,012

The loss is pretty significant, but the van does still heat. It sound like a pretty significant amount of labor to get to it. I may just live with it.

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