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Monte Carlo & Lumina Since the 1970s, the Monte Carlo has been an icon of American stock car racing. A 4-door version, the Lumina, was produced in the late 90's.
Platform: A-, G-, & W-body

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Old 02-27-2010, 05:34 PM
CF Beginner
Join Date: Feb 2010
Posts: 2
Default 98 lumina heater doesn't work

the temp gauge goes crazy for awhile it jumps up without the engine getting hot without any heat blowing out then goes down as fast as it went up then you get heat after that. just replaced thermostat, seem to be putting alot of antifreeze in, at least once a week. i do not have to put much n when i do.
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Old 02-27-2010, 10:29 PM
CF Beginner
Join Date: Feb 2010
Posts: 3

Did you by any chance put an antifreeze leak stop product into the overflow resevoir? I had a smiliar issue with my car after using a stop leak product for an antifreeze leak. I added the product to the resevior instead of the rad and it blocked the inlet/outlet of the resevior not allowing antifreeze back into the rad.
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Old 02-28-2010, 06:56 AM
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Join Date: Feb 2010
Posts: 2

no i diddn't
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Old 02-28-2010, 06:56 AM

1996, 95, 98, antifreeze, carlo, chevy, dexcool, heat, heater, hot, lumina, monte, temp, woking, work

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