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2004 Deville
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45 Posts
Discussion Starter #1
The air conditioning dash vents will blow warm air through the drivers side vents, and cold air through the passengers side. This only happens occasionally, but enough to be annoying (im in florida).... i have searched the issue which is common, can anyone tell me is there one door motor divert module or is there two? One on the passengers side and one on the drivers side? Any other thing i should change or look at? Thank you for the help...
Rick
 

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Registered
2004 Deville
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45 Posts
Discussion Starter #3
thank you, with reading too much information, i did find one mention of there being one on the drivers side of the dash as well. I shall remove the one you are referring to and replace with fingers crossed! Thank you for the help!
Regards,
Rick
 

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Master of the Dark Art of Diagnostics
2003 DHS - two-2002 DHS, 2003 SLS, 1995 Sedan DeVille, 1989 Coupe DeVille
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19,270 Posts
thank you, with reading too much information, i did find one mention of there being one on the drivers side of the dash as well. I shall remove the one you are referring to and replace with fingers crossed! Thank you for the help!
Regards,
Rick
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your problem is more likely low on freon -

if you have a set of AC gauges -
connect them - and post BOTH the high side and low side pressures -
along with the ambient temp -
and the duct temps
with the AC set to 60* -
and a medium blower speed -
 

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2004 Deville
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45 Posts
Discussion Starter #5
Ice cold to warm on drivers side and back is a freon problem ?? Anyone else experience this and not door actuator?
 

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Master of the Dark Art of Diagnostics
2003 DHS - two-2002 DHS, 2003 SLS, 1995 Sedan DeVille, 1989 Coupe DeVille
Joined
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19,270 Posts
Ice cold to warm on drivers side and back is a freon problem ?? Anyone else experience this and not door actuator?
=======================
you said cold on the passenger side -
warmer on driver side -
CLASSIC low freon charge -

cold liquid freon enters and fills the evaporator -
the freon picks up heat - and starts to boil -
HOPEFULLY after it exits the evaporator -

cold liquid freon enters the evaporator on the passenger side -
if freon is low - it starts to boil within the evaporator -
the driver side of the evaporator then only gets warmer gas - not cold liquid -
 

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300 SRT8, 392 cubic inches of tire smoking power!
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8,189 Posts
rmorrow1970 said:
Ice cold to warm on drivers side and back is a freon problem ?? Anyone else experience this and not door actuator?
Yes.
 

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Super Moderator
White Diamond '03 DHS (with DTS floor shift)
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86,783 Posts
Ice cold to warm on drivers side and back is a freon problem ??
Could be. Check the refrigerant inlet and outlet pipes on the firewall. They should both be cold (A/C on) and the same temperature. That is what Bass is describing.
 
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