2008 chevy uplander ls Cooling fan always runs, even if the car is not hot. It doesn't overheat. Any suggestions?

Can someone send me a video or diagram where the2002 chevy trailblazer LS fuel lines fo

There are quite a few reasons the engine could overheat other then a failed cooling fan clutch. I wonder if the fan is always on because the engine is always running hot?
This condition may be caused by any of the following possibilities:
• Installation of an aftermarket grille.
• A plugged charge air cooler.
• Fan clutch not operating properly.
• Drive belt slip.
• An overfilled transmission.
• Turbocharger not operating properly.
• A plugged air filter

Hope that helps........

Hi Bajil, Have a diagnostic scan carried out and have the coolant temperature sensor and relay inspected for correct operation. It sounds as if a cable has become disconnected or that the operating circuit has become defective. The cooling circuit operation is correct when the fan operates when the engine temperature raises a fraction above normal. The fan will run for a number of seconds and then switch off, thereby maintaining the 'normal' operating temperature. Regards John

If the check engine light is not on, I would check voltage to the compressor clutch when it fails. Could be the clutch or a relay.

Cooling SystemTotal Cooling System Capacity (qts) : 12.15

Source: chevrolet-uplander-4dr-ext-wb-fwd-ls

Where is the expansion valve located on a 2008 Chevy uplander

Your vehicle has two fans controlled by three relay's . Both fans run together at two different speeds , low an high ! With the A/C on the fan's will run all the time while stopped at stop sign or idling . Any other time the then only come on when the coolant reaches a set temp. The ETC - engine coolant temp sensor is a input to the PCM - engine computer . When coolant temp reaches 212 degress the PCM energizes the fan 1 relay turning on both fans at low speed . This is very complex ,your best bet ,take it to a qualified repair shop.



Relay Driven Dual Cooling Fan Diagnostics

was wondering if you figured out the problem yet?

Yes, I would suspect the Thermal Relay is defective. Replace it.