2002 Dodge Ram Heat and air quit blowing after 30 minutes

2002 DODGE RAM
10,400 MILES • 6 CYL • 2WD • AUTOMATIC
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MATTMOVRE
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Hello,
I have a 2002 dodge ram. I have recently had the ac system bebuilt. Everything under the hood was replaced. After this, the air would not get cold, it was cool, but not what a new AC should be. The shop said it was the blend doors. I replaced the 4 blend doors, and shecked the blend door motors with a 9-volt battery. The AC will now blow, both hot and cool, but only for 30 minutes. THen all air flow stops. The fan is still spinning, but no air comes out of the vents. I have checked to insure the fan is spinning, and that the blades are free of debris. I have also flet around as far as I could for obstructions in the duct work. Do you have any ideas what else I can check into?
Thank You,
Matt Movre
Dec 24, 2009 at 10:59 AM
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MERLIN2021
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First thing is scan for codes, Fix any problems found with codes. Then check vacuum system, I sent a PDF by email to help with this part.
Dec 25, 2009 at 11:14 AM