Mechanics

HEATER ONLY WORK ON PASSENGER SIDE.

1999 Oldsmobile Aurora

Heater problem
1999 Oldsmobile Aurora V8 Front Wheel Drive Automatic 120000 miles

Hi there.
Heater only work on passenger side.
Please help. Lately car was in repair shop with A/C problems and radiator change.
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Jands96
December 14, 2007.



If the blower only has flow on the passenger side, chack all settings and feel for air at defrost and panel settings, this is most likly a door frozen in the heater plenum, or a bad servo, that's the unit that operates the door!

Merlin2021
Dec 14, 2007.
It is blowing cold air from driver side.

Tiny
Jands96
Dec 14, 2007.
OK sounds like the dual system, without having the benefit of the scanner and resulting codes, I think the temp blend door on your side is stuck, or the ambient temp sensor on your side is no good.
Look under the das at the heater plenum, see if the servo opens and closes the blend door. If there is no movement, disconnect the servo, see if you can move the lever by hand, it should move easily! If you need to get a can of white lithium spray, and see if you can lube it, then work it till it frees up.

Merlin2021
Dec 14, 2007.