Question about 1989 Pontiac LeMans

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Where is the cooling fan relay located on a 1989 Pontiac Lemans?

Where is the cooling fan relay located? The fan works when connected directly to the battery but will not come on by itself.

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Fan relay is mounted on the fuse box under the dash on the drivers side

Posted on Jul 08, 2010

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1 Answer

What sensors are bypassed when the cooling fan is put on a fusible link on 89 firebird


I'm not sure I completely understand your question, if youre wiring the cooling fan directly to power (with the fusible link) you'll be bypassing the PCM's output to the fan relay...the PCM uses the Coolant temp sensor (CTS) as an input to determine when to turn the fan on.

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have you check to make sure the cooling fan is working and not seized. this is a common problem with most cars. this is where I would start then go to the relay. the relay is usually mounted on the firewall under the hood and there is a plastic cover that covers a row of relays. don`t remember which one is for the cooling fan though, they may be marked on the underside of the cover.

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Probably the temperature sending unit...if not that the relays...they should be relatively cheap and easy to replace...

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Yes it COULD be a bad relay. But then again, it COULD be a malfunctioning A/C high pressure switch or a bad engine coolant temperature switch, or bad ground circuit, or any of the wiring in-between. If your Camry is equipped with the 2.5L engine, it could also be the radiator cooling fan control amplifier.The system must be properly diagnosed to locate the source of the fault.

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2006 bmw 750li, radiator cooling fan not running when engine hot, I have replaced the sensor or switch, in the lower radiator hose with new, fan will not come on still. is there a fuse that might be...


the cooling fan fuse is located in the main fuse panel,location of which should be in your owners manual if you have one if not call the dealer and ask.it could be the cooling fan motor itself not working or the cooling fan relay.to check the cooling fan if you disconnect the plug on the back of the motor and feed direct power and ground to the terminals of the motor.if the fan starts to work then it is okay.to change the cooling fan it is a job for a shop to do as it entails alot parts removal to get to the fan itself

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Check all fuses first. if the fuses are okay, disconnect the engine cooling fan connector and using jumper wires, connect the fan motor directly to the battery and ground. If the fan still doesn't work, replace it. If the fan does work, its relay may be faulty. Check in the engine compartment fuse box for the cooling fan relays. Try switching the cooling fan relays and see if the engine fan comes on and the a/c condensor fan stops working. If so, the engine cooling fan relay is faulty. If the engine fan still doesn't come on with a good relay, then check the engine temperature switch located at the passenger end of the front cylinder head. It is supposed to switch (have continuity) when the engine temperature reaches 205 deg F. You can remove the switch and put it in a pot of close to boiling water (212 deg F). If it doesn't have continuity at that temperature, it is defective.

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Radiator fan motor does not run


1. check the cooling fan fuses
2. supply battery voltage directly to the fan assembly plug
a. if fan is good
locate and test/replace cooling fan relay
b. if bad
replace cooling fan assembly
if still is not working check continuity cooling fan system circuit/wiring

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How do you check a cooling fan that wont run on 2002 grand cherokee


ELECTRIC Cooling Fans are Controled By
1) Coolant temp Sensor
2) Cooling Fan RELAY
3) Power source TO the RELAY ( Fused )
UNPLUG the Cooling Fan PLUG @ FAN Itself
Use DIRECT CURRENT AT the FAN PLUG<< +POS & --NEG FROM BATTERY ONE BRIGHT COLORED WIRE at FAN PLUG is +POS. the Other is --Neg If the Fan COMES ON then your Problem IS BEFORE the FAN @ ONE of the 3 OTHER COMPONENTS ABOVE

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aside from checking for a vapour lock,I'd invest in a newer car.

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1989 pontiac tempest: Im having trouble finding the turnsignal relay or whaatever its called. i have the new part, but no owners manual/service manual.


the signal flasher should be under the dash on the RIGHT SIDE OF THE STEERING COLUMN clipped to the dash carrier
it has been awhile so i'm not a 100% sure i know a 1990 sunbird is there
hope this helps

Dec 04, 2009 | 1989 Pontiac LeMans

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