Heat/AC Blend Doors

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gmbellew

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Kansas city
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glen
Truck Year
1990
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suburban 1500
Engine Size
350
Saltshaker787 said:
U mean wrong vaccum lines could be on the pod....have em criscross? The vaccum harness appears to only go on one way on the back of climate control module....thanks for your help
Click to expand...

yes, make sure the vac lines go where they are supposed to go.
 
S

Saltshaker787

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NC
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James
Truck Year
1990
Truck Model
Suburban 1500 sle
Engine Size
6.2
Well that was the pblm....I marked the lines with colored tape when I removed the old heater box....didnt realize guy who replaced my heater core 8 yrs ago...put the vaccum lines on wrong....man im so glad this mystery has been solved!!! Thanks for your help!
 
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