Question about 1999 Oldsmobile 88

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Ac & heater

My ac & heater does not work. It has worked in the past sporadically. It worked fine up until about 9 months ago. Since then it may have come on a total of 10 times. It acts like it has a short. I've check the fuse. Please help. It is horrible driving in the rain with no defrost.

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Disconnect the wire from the fan, turn the car on, test the voltage between the connector to ground (chasis) on all fan speed settings (high,med,low). If you have voltage at all settings (approx. 12.3V on high and less as the speed setting is lower) then replace the fan motor (about $50 at autozone). If there is not voltage on all speed settings you will also need to replace the blower motor resistor (about $12 at autozone). The whole process takes about 20 mins.

Posted on Jan 07, 2009

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See Figure 8
When adjusting the water valve control rod, disconnect the temperature control cable at the air mix door lever and then adjust air mix door control cable. Next, adjust the control rod. Reconnect the temperature control cable and then readjust it.
  1. Push the air mix door lever in the correct direction.
  2. Pull the control rod in the direction shown (in the accompanying illustration) until there is an 0.08 in. (2mm) clearance between the ends of the rod and link lever. Connect the rod to the door lever.
jturcotte_114.gif

TEMPERATURE CONTROL CABLE
See Figure 9
Move the temperature control lever to the cold position. Push the cable sheathing and the air mix door lever in the correct and then tighten the clamp. Verify proper operation.

jturcotte_115.gif

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