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What would cause the heater switch to only work o n 3 or 4 on a 2002 impala?
Wiki User
∙ 9y ago
A start would be to check this website regarding your heater switch. My mother has an impala and the cruise control green lamp would come on (cruise control was OFF) and the heater blower would only work on #5 and this was after the car operated for awhile and out of the blue I noticed it would turn on. I will be looking at swapping out the ignition switch, for a DIY and a $60 switch it beats the hrs of troubleshooting, I was told by her mechanic 3-5 hours worth with no possible solution. Also do a internet search on the above too, youu are not the only one with this issue. I hope this helps.
http://www.carcomplaints.com/Chevrolet/Impala/2002/AC_heater/blower_fan_doesnt_work.shtml
Wiki User
∙ 9y ago
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