1997 Buick Park Avenue engine runs hot without heater on

1997 BUICK PARK AVENUE
150,000 MILES • 6 CYL • FWD • AUTOMATIC
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JDJ2009
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  • 2 POSTS
My park ave ultra runs hot (over 200 up to 216) when I am doing stop and go driving unless I turn on the heat/defrost.It runs normal on the highway.I have replaced the thermostat,the upper and lower hoses,had the system flushed out at the buick dealership,checked for holes or leaks,and had it looked at by a mechanic.What I want to know is if anybody knows why this is happening and what can be done?
May 17, 2009 at 7:05 AM
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DOCFIXIT
  • ✓Experienced Mechanic
  • 18,828 POSTS
Have cooling fans been verefied to operate properly? Also radiator maybe partically blocked feel bottm when car hot same temp as top or middle?
May 18, 2009 at 8:13 AM
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JDJ2009
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[quote:d3fc44dc0e="Docfixit"]Have cooling fans been verefied to operate properly? Also radiator maybe partically blocked feel bottm when car hot same temp as top or middle?[/quote:d3fc44dc0e]
The mechanic said that both fans are working good.I just had the cooling system flushed,so if there were any blockage wouldn't it show up then?
May 20, 2009 at 12:10 PM
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