Relays are good and fuses are good. thermostat changed a week ago
It should have a heat sensor somewhere in the block that tells it when to turn on, the heat sensor is probably bad.
SOURCE: have a 98 neon that
check to make sure the lower rad hose isn't collapsing when engine is reved
SOURCE: electric cooling fans will work.
The fans are actuated by coolant temp in the radiator. It is possible to have overheated coolant in the radiator, causing the steam, and your engine not overheating...the temp sensor for your engine is reflecting the engine temp, not the temp of the coolant in the radiator. You problem could be a bad temp sensor at the radiator...not allowing the fans to come on. Good Luck! I hope you find this to be very helpful!
SOURCE: I have a 2002 Dodge Caravan sport with 3.3L
The relay is located down at the left lower corner of the radiator support. Little flat box, like a box of matches. common to be bad.
Testimonial: "Thank you for the help. The problem as I see it is I can't find said switch anywhere on the web. I can find a radiator relay fan, but no switch"
SOURCE: 97 dodge cooling fans stoped working
If you have checked the relay module under the fans,on drivers side,and they are fine,replace the coolant sensor,and make sure all the air is bled out of the cooling system.
SOURCE: replaced a radiator fan relay switch p1491
There should have been an erase button on the scanner they used at advance, this should erase the memory
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