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Discussion Starter #1
the blower works good , but when I go to 85 - 90 it blows cold air when its 20 degrees outside......... When the temp outside goes to 30 and above it heats up ... whats going on any Idea , can someone help

I have put on new water pump ......
I put a new thermostate in ..........
 

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1995 Sedan De Ville (4.9 L)
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Sounds like a thermostat problem to me. Is water temperature around 200 F while driving after warming up at any outside temperatures?
 

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Discussion Starter #5
I replaced the thermostat 2 time's . when it gets 20 degrees outside it takes 7th forever and only blows heat on passenger side , driver side is cold
 

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i would check out the heater core just to be thuro. Also check the outside and inside air tempature sensors. does this happen when running the heat in auto or econ mode if the 95's have that.
 

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Discussion Starter #7
does this happen when running the heat in auto or econ mode if the 95's have that. ( answer -- yes it doe's )
 

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1926 Model T street rod, 2000 Jaguar XJ8, 1999 Corvette.
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6,737 Posts
do a search for heater. many, many, many threads, all usually result in a partially plugged heater core.
 
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