Quote:
Originally Posted by intriguehatesme
thats the next thing i was gopnna ask, where are the air purge valves on the 3.5?
i hate this car now, i drained all the water out of the can and ran a 50/50 dexcool and water mix and the car still overheated. took the water pump off and there was nothing wrong with it, 3 mechanics told me to put it back on. im starting to think it needs a new motor or the radiator.
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Did you ever try replacing the thermostat? There was a TSB on the older 3.5L Intrigues that had the similar symptoms as you.
In the TSB it says the customer observes overheating when the temp is below 0*C (32*F) with the heater and fan on the highest setting when idling or driving slowly in traffic.
It says to replace the thermostat with a revised one that helps coolnt flow better. By now, all of the aftermarket thermpstats should have this revised design.
Check the radiator fan motors to make sure they are working. Just use some extra wire to temporarily hook them directly to the battery to see if they work.
Did you ever check and/or replace your coolant lid?