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Maintenance & Repair Climate Control Problems (Air Conditioning, Heat) - All Cars
791 messages, Last post on Aug 12, 2009 at 12:55 PM
You are in the Maintenance & Repair Forum. Your Host is mr_shiftright
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Replying to: marc1973 (Jan 01, 2008 2:14 pm) Is there a shutoff valve that is closed for AC use to keep the heater from reheating AC air when really cold air is needed? Is that shutoff valve open? Is it vacuum operated? A vacuum leak could cause rough idle and strange running and engine light. The misfire might have been a wire pulled loose as they worked. First check for me would be to hold both heater hoses as close the firewall as I can grab them and see if they're really hot after the motor has been run for 10-15 minutes or more. That lets you now coolant is flowing through the heater core. From there it would be to the inside to see what's moving and what's not moving when you adjust the controls to heater and full hot. |
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| I will be traveling down the highway going at least 60 MPH but at times the odometer will get stuck at 30 MPH or 40 MPH , the next day everything appears to be working fine again, this is now becoming a cycle. I contacted a locate dealership and was advised to purchase a new sensor device, costing around $500 bucks. I was told the whole dash board would have to be removed to get to the damaged part. What else could be causing this? Different temperature changes, low batteries, a bad fuse, condensation in the panel???? | |
what is causing the sensor that is monitoring the speed I am going to read inaccurate one day and accurate the next day. Sometimes it will freeze up and just get stuck, I lightly tap the panel to help loosen up, sometimes this works and resets the monitor correctly. The buick dealership recommends I replace a part that will cost me $500, I was told the front panel has to be removed to replace this part, Could a loose wire, bad fuse, poor batteries, condensation with temperture changes be the culprit? I cannot understand paying out this much money for a replacement part when the part actually still works, just not all the time.
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Replying to: bugatti3 (Jan 07, 2008 2:07 am) What you should try, is to start driving around with the cruise control on. If you are driving lets say at 60 mph for 10 minutes, and then the speedometer now reads 30 but the car continues at the same speed controlled by cruise control, then you know that the transmission sensor and computer are okay, and the problem is likely the dash/display. On the other hand, if you are driving at 60 on cruise, and all of a sudden the speedomenter drops to 30 and the cruise either triggers off....or speeds the car up, then you should suspect the transmission sensor. |
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I have 2006 expedition EB edition. The heater blows very hot air while the temperature is on 67F, even if I lower the temperature to 65F where no heater should be working, it still blows very hot air. This Usually happens when the outside temperature is low (30's). It makes a little difference when turn the A/C on with recycle air. I took it to the dealer and they did not find any problem. Most of the times I have to turn it off in order to breath in the care since it get very hot. any body have any clue
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| took my 2000 sable in for brakes and struts, when i got it back i had no heat and the clock and radio were out of wack. they tell me they did nothing to them anyone have any solutions. thanks | |
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Replying to: cbaber (Jan 14, 2008 8:50 am) JL |
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| i have air coming through my air ducts and want it to stop how do i fix it? i own an 89 cadillac brougham... not sure if it is fleetwood or d' elegance | |
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1998 Olds Silhouette Van Just had AC serviced... Drained & Recharged All was fine for about 2 weeks. The van has 3 center of dash vents... Left and center now give warmish air... The furtherest to the right gives cold air??? What could be causing the problem... Is there a blend door ? Part of AC not cooling? I hate to say it but I don't trust my mechanic... So I would like some suggestions before returning...
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The AC blower fan on my 98 Olds Aurora works fine some of the time, then at other times wont. Lately I find that if I leave the fan position swith in the mid range, it will blow steady but with reduced force. Had it to the dealer and they could not get it not to blow. Someone suggested it could be the Blower fan control module. Any one else have suggestion? |
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