Chrysler Repair: a/c on 1999 Chrysler Cirrus lxi:blower on high only, chrysler cirrus lxi, 1999 chrysler cirrus lxi

Question
Roland,

Thanks for the help. Would you know anywhere I can get a diagram helping me to install the replacement part? I appreciate you helping me and others like me.

John
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Followup To

Question -
I have a 1999 Chrysler Cirrus lxi and the a/c blower will only work on high. I had the blower motor resistor replaced about three months ago, and it fixed the problem. However, the problem is now back. Do I need to replace the blower motor and the resistor or just the resistor? Any help would be appreciated.

Answer -
Hi John,
I believe the blower motor resistor block has failed again, probably because of a manufacturing flaw in the thermal limiter or because the resistors or thermal limiter were touching oneanother in the block structure. Because of the early failure I believe you should be able to get it replaced under warranty. I would not contemplate replacing the blower motor at this time. The duct into which the block is fitted should be checked to verify that it is connected properly and not blocked as far as air passage is concerned. Only the overheating of the block is likely to cause its failure if the parts themselves were o.k.
Good luck on getting this replaced at no cost.
Roland

Answer
Hi John,
There are a couple of photos in the Haynes manual for the Cirrus/Stratus of the later 90's as well as the Chrysler service manual in the same time frame. But it is not necessary to have those. All you need to do is remove the right side underdash silencer panel (There is a push-in
fastener at the right hand end, and the left end is attached to the center floor distribution duct by a squeeze together connection, I believe). That will give you a good view of the blower motor and associated duct work and heater housing. The two wires that go to the blower motor come from the resistor block which you will notice is mounted on the underside of the heater housing, and the "ears" at the narrow ends of the block are held to the housing by 2 screws. You will see there about about 5 wires attached to a 6-pin black plug at the block, so you just remove the plug (it may have a tab that you squeeze to release it from the socket), then remove the two upside- down screws, and the resistor block will drop out of the housing.
Reverse the procedure to install. Make sure the resistors are mechanically free of touching oneanother.
I can xerox and mail you the drawing/photo from those two sources, but I really think that it will be obvious to you once you remove the silencer panel on the lower edge of the dash.
Roland