Question about 1994 Buick LeSabre

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1994 buick lesabre coolant fan won't come on

Used jumper wire fans work,installed temp.sensor

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Posted on Jan 02, 2017

  • 73 Answers

SOURCE: 1995 Buick LeSabre cooling fans not working

check the fan relay swich or the fuse

Posted on Mar 13, 2009

  • 3267 Answers

SOURCE: 94 buick roadmaster over heating changed waterpump

I feel there is a sort somewhere in the fan circuitry, check its fuse unit. Also ensure proper level of engine oil is present in the engine. Actually your car might be overheating because the respective fans are not powering on at the correct time, but you mentioned that these fans are in working condition so it has to on something in this circuit that is preventing completion of this circuit by their respective sensors which you have recently changed...............sodeep

Posted on May 04, 2009

  • 22156 Answers

SOURCE: Where is the heater fan blower resistor on a 1994

its built into the the blower motor body

Posted on Oct 20, 2009

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SOURCE: 89 buick lesabre electric cooling fans

You are off to a good start by testing the fans. Get a repair manual from your nearest autoparts store. I find them invaluable. Most temperature sensors can be tested with an Ohm meter. Or short the two wires together to trigger fans. If it has only one wire then ground it to the frame/body (negative side of battery). If none of that works (with ignition on / car off) then relay is bad. Also turning on the A/C should make the fans come on. Car does not have to be running, key in on position. This would eliminate bad relays or not.

Posted on Mar 04, 2010

  • 13 Answers

SOURCE: where is the coolant temp

Hi there,

you have two ECTs on this car on the right side of the block and other close to the water pump. I would suggest replacing both of them while you at it. Good luck

Posted on Dec 02, 2010

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Yes, it could. But there might be another little module or device at play here, tricking the relay for the fan to come on (wrong temp). Certainly the ECT sensor, if you experience other driveability symptoms or issues especially in that time between the fans coming on and the engine reaching normal operating temperature.
Well, maybe this is a little help on your way to solve it. A wiring diagram of the circuit is another option besides the engine CTS.. Good luck.

Dec 01, 2011 | 1994 Buick LeSabre

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Sometimes stalls or surges when hot, runs hot

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Replace the temp sensor near the thermostat hosing.

Check the condition of the sensor wire cut(s) or short onto the engine block.

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Niether fan on my 95 lesabre won't turn on

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Jul 28, 2009 | 1993 Buick LeSabre

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2005 buick allure temp guage shows 0 and both cooling fans run

coolant temp sensor defective. look through manual for location of this sensor.

Jan 05, 2009 | 2003 Buick LeSabre

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