Car Temperature
January 15, 2005 2:06 PM Subscribe
[CarTalkFilter] '94 Buick with electronic heat & a/c controls. External temperature reads 94 degrees F (it's currently around 10 above). What do I check out to fix this? [more inside]
This is a 94 Park Avenue with the pushbutton electronic controls where you set the desired temp rather than slide levers, etc. The outside temp reading always reads WAY hotter than it really is. I bought this car last fall when it was in the 50s and at that time it read over 120 degrees as the outside temp. Not really a big deal but I think that this temperature reading MAY be used by the computer to control A/C compressor cycling. I've noticed in 20 degree temps if I have it set to the HEAT setting the A/C compressor cycles on and off (burning extra gas unnecessarily).
How would I go about troubleshooting this? A bad sensor somewhere? But where is it located? I was going to pick up a Chilton book for this car but little things like this aren't always detailed in them so I figured I'd ask here to see if anyone has any ideas.
This is a 94 Park Avenue with the pushbutton electronic controls where you set the desired temp rather than slide levers, etc. The outside temp reading always reads WAY hotter than it really is. I bought this car last fall when it was in the 50s and at that time it read over 120 degrees as the outside temp. Not really a big deal but I think that this temperature reading MAY be used by the computer to control A/C compressor cycling. I've noticed in 20 degree temps if I have it set to the HEAT setting the A/C compressor cycles on and off (burning extra gas unnecessarily).
How would I go about troubleshooting this? A bad sensor somewhere? But where is it located? I was going to pick up a Chilton book for this car but little things like this aren't always detailed in them so I figured I'd ask here to see if anyone has any ideas.
Response by poster: Thanks crash. I'll check that out.
posted by AstroGuy at 7:24 PM on January 15, 2005
posted by AstroGuy at 7:24 PM on January 15, 2005
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posted by mr_crash_davis at 6:41 PM on January 15, 2005