98 Chev truck blend doors


Old 06-30-10, 08:15 PM
Thread Starter
Join Date: Jun 2010
Location: U S A
Posts: 2
98 Chev truck blend doors

I have a 1998 Chev C1500 and can't get the blend door to go to dash vents for the A/C. The moter works but I hear A floping noise from the box under the dash. I want to know how to get to the door. No service manual shows the inside of the box. I hope that someone can help me out. Thank you
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Old 07-01-10, 04:22 AM
Join Date: Jan 2006
Location: Ontario, Canada
Posts: 759
Try listening close on passenger side near glove box. I believe you can access blend/air door actuator from behind there, although you will likely have to remove glove box.
Old 07-03-10, 08:46 AM
Join Date: Oct 2008
Posts: 1,312
FYI - A GM "Factory Service Manual Set of Books" for that specific vehicle would have the most detailed and complete service information (order from dealer of helminc.com).

I don't know if you looked at a factory manual or just the aftermarket books sold in auto parts stores?

And if replacing a part such as that, there is a certain "procedure" you sometimes need to do to "synchronize" an actuator to the A/C controls. This is a common repair, so you may be able to find this information (from the factory manual) on the internet...

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