I have a 2007 Suzuki Aerio. Replaced the thermostat about 2 months ago when the vehicle began overheating in traffic and while idling. This seemed to solve the problem until the recent stretch of 100+ degree days. starting to do the same thing tmeperature is about 1/2 while driving on open road but when you get into stop and go traffic, it climbs to the red. If I swithc the ac off and run the heater it goes back to normal. Any ideas????
Actually..it's funny that I found this posting I have a 2005 five aerio that has been doing the same thing now for about 6 months...come to find out yesterday..I have a blown head gasket in mine... We thought it was the thermostat at first too and replaced it...I have kept up all the coolant and everything...if you don't have your car looked at asap you might blow a gasket on yours if you haven't already!! Also be careful too because Suzuki is trying to tell me that they won't cover the car even though it's under warranty because they are saying that its owner error..So its a 1500 to 2000 dollar bill if you have to pay for it yourself...well at least here in california anyway!! Good Luck!!
did you install the thermostat correctly? vent tab up.
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For all things Aerio the best forum is http://www.aeriostyle.com/forum/index.php
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