Question about 2004 Pontiac Grand Am

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Cooling fan cut on sometime and don't cut on other

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Sounds like a faulty coolant temperature sensor.

Posted on Feb 24, 2012


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Hi, It's me again, the 97 Crown Vic. I understand exactly what you're saying and will have someone look under my car ASAP. The one thing that I just don't get is.... even when it's not...

Your car has a temperature senser and as soon as the temperature is above a certain level the engine fails as a way of safety. its a safety control switch . First start the engine when it is cool and then check the performance of the fan. Is the generating enough air to cool the it is running check the temperature gauge i the car and see the level . It could be the fan not providing enough air cool the engine.

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93 Dynasty 3.3, driving today and the air bag light was staying on then I noticed my windows would not roll down nor would the heater fan run then the car overheated. I had replaced the cooling fan relay...

With a car that old & that many problems,
I would get rid of it

It needs too much work & I don't sense that
is your area of expertise

When you start becoming a butcher & wiring things,
instead of repairing them properly,it is time to quit
& get something else

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Chevy equinox overheating because the cooling fan connectors are bad.. can you purchase the connectors and fix yourself?

you should be able to purchase the connectors at a auto accessories shop or an electronics shop they don't have to be exactly the same as long as they do the job, but be very careful & make sure the wires are connected exactly the same as they are,if you reverse the polarity the fans will spin in the wrong direction & will not cool the engine properly......hope this helps......cheers.

Jun 24, 2011 | 2006 Chevrolet Equinox

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1999 grand voyager IS overheating. Randomly, it seems. Short trips, and quickly. AND longer trips. Then, sometimes, it will cool down without further intervention from me. It SEEMS the fans don't come...

Engine quickly overheating is often caused by a stuck closed thermostat. However, in your case since the fans don't come on, the most likely culprit is a bad fan speed controller. These are variable speed fans controlled by the speed controller. They fail when rust forms on the mounting/cooling area where the controller is mounted. This is an electronic device that has a heatsink on the back. When rust forms it can't dissipate heat and that burns out the controller. See the post below for more information on how to replace it.
Car overheats Chrysler Vehicles Ricks Free Auto Repair Advice

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I don't have car manual and I have a missing fuse on the fuse block under the hood. It is for the cooling fan and I don't know what size goes in there.

Contact a Local Parts store give them your year make and model ask about cooling fan relay fuse Will be a 12Volt for sure

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Cooling fans on aztek no coming on, ran hot wire to fans and works. checked fuses, jumped wires at temp. sensor and fans ran after shutting ignition off for aprox. 30 seconds, replaced temp. sensor and...

there are 4 steps to check and you've mentioned all but one the relay which cuts the fan on'off. At an elec shop you check in this order power to fuse block, fuse & output side, temp sensor, relay, and fan motors. Get a new relay

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