Join Date: Oct 2017
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Cooling Fan Running Too Often, Doesn't Shut Off
Just joined up to get some advice from folks who know their stuff (not like me). I've got a 2008 Versa SL hatchback. One week ago, I took the car in to get a coolant flush as I recently moved to ID where temps in the winter can freeze things up. Car has 100K miles and I bought at 60K from private party. Wasnt sure what previous owners had put in (more water than antifreeze maybe?) so to play it safe I had it flushed and refilled with proper antifreeze for colder enviroments. Mechanic calls me and says thermostat is "stuck open" and is bad so I need to replace it. So I had them put a new one in. After leaving the shop the cooling fan kicks on only after 5-15 mins of driving. Nothing has changed in driving habits (highway vs stop-n-go, etc) and the outside temps are only 50-55F. I get no warning lights or temp lights in the car and never have since owning the vehicle 3.5 years. I moved to ID from Las Vegas and ran A/C a lot (very hot summers). Fan would kick on at normal intervals when engine was hot so it was operating EXACTLY how is should. Again, never had any overheating problems even in Vegas. Taken back to shop twice now and they keep telling me their diagnostics computer is reading "normal" in that the fan is kicking on when engine temp reaches a certain temp. I dont buy that BS excuse. They did something to my car during the initial visit.
What could they have done with replacing the thermostat and a coolant flush to cause the fan to kick on waaaaaay too early and then NEVER shut off until I turn the engine off? Once the fan starts up after just 5-10 mins of driving it never shuts off until I turn car off? So frustrated and I'm trying to educate myself on what they did to screw up my car. Please help.