Problem with the cooling fan

Migey · 03-31-03, 03:42 AM

I've noticed a problem with my cooling fan, well not really a problem. The fan almost never turns off, I think there is something wrong with the sensor or something. Do you guys know were the sensor is for the cooling fan?

Miguel

89 LS All Stock · 03-31-03, 11:05 AM

I have had a problem with my cooling fans as well, but almost the opposite if what Migey is describing.

Here it is, when my car starts the fan starts automatically for about 30 second and then shuts off. Sometimes it does not come on again even if the car begins to overheat. Usually all I have to do is shut off the car and start it again and the fan comes on and cools off the engine. I guess something is getting reset? It is pretty bad in stop and go traffinc in the summer and with the summer coming again I want to get rid of this problem.

Any thoughts? Could it have anything to do with the thermostat as well?

paulo57509 · 03-31-03, 02:10 PM

The problem can be either the coolant temp sensor (not the gauge sensor) or the fan timer control.

Your shop manual should provide the proper trouble-shooting procedures.

jake · 03-31-03, 02:35 PM

does your car have 2 fans or just one my 90 has 2 and as soon as you turn on your a/c the 2nd fan should start automatically, I had problems with mine last year not turning on when it should, if you check the wires by the front drivers side headlight at the bottom of the radiator, that was the problem with mine snow must have broken the wire. just might be the same thing.

Migey · 03-31-03, 05:54 PM

thanx guys I will check it out.

90acura149k · 03-31-03, 08:50 PM

Sometimes, even when the car has sat for a day, the fan will turn on when someone walks next to the car including my 16lb. cat. The battery has never gone down and no overheating problems and the outside temp is about 60-70 degrees now.

89 LS All Stock · 03-31-03, 10:42 PM

Thanks for the ideas guys, I will definately have a look at the wires under the rad and yes my 89 does have 2 fans also.

90Legend218 · 04-01-03, 03:15 AM

It is probably your radiator cooling fan switch. It is located at the bottom of the radiator by the radiator drain plug. I just replaced mine two days ago and it's cool now.

03-31-03, 03:42 AM	#1 (permalink)
Migey Registered User Join Date: Feb 2003 Location: Canada Posts: 2 Car 1: Acura Legend 1988 iTrader: (0)	Problem with the cooling fan I've noticed a problem with my cooling fan, well not really a problem. The fan almost never turns off, I think there is something wrong with the sensor or something. Do you guys know were the sensor is for the cooling fan? Miguel

03-31-03, 02:10 PM	#3 (permalink)
paulo57509 Registered User Join Date: Jan 2002 Location: Tracy, CA Posts: 1,534 iTrader: (0)	The problem can be either the coolant temp sensor (not the gauge sensor) or the fan timer control. Your shop manual should provide the proper trouble-shooting procedures. __________________ '87 L-Coupe 5-Speed Stock; NO Mods 392K Miles - original engine and drivetrain.

03-31-03, 08:50 PM	#6 (permalink)
90acura149k Registered User Join Date: Oct 2002 Location: Oregon Posts: 853 Car 1: 88 L Coupe iTrader: (0)	Sometimes, even when the car has sat for a day, the fan will turn on when someone walks next to the car including my 16lb. cat. The battery has never gone down and no overheating problems and the outside temp is about 60-70 degrees now. __________________ 88L Coupe ,JDM motor, 5 Speed swap, and 2.25"exhaust, milage computer, custom down pipes from manifolds, real CAI, Accel Super Coil, 182k miles on the body. New black leather and small grant racing steering wheel. Port and polished intake manifold without butterflys and rebuilt 5 speed.

04-01-03, 03:15 AM	#8 (permalink)
90Legend218 Deeez Nz Join Date: Jan 2002 Location: Columbus, OH Posts: 278 Car 1: 1990 Electron Blue L Coupe iTrader: (0)	It is probably your radiator cooling fan switch. It is located at the bottom of the radiator by the radiator drain plug. I just replaced mine two days ago and it's cool now. __________________ Current Mods: 90 Legend L coupe (Electron Blue) R1 racing coilovers (off of '96 Accord coupe) Custon cat-back exhaust (2.5" piping w/ single 3.5" tip) Custom intake Anodized look painted valve covers Pioneer DeHP 6000 Head unit Alpine V12 amp 2 sony 12's (not anymore...Cops took 'em...s. Still got the amp though haha) Cerwin Vega components Clarion rears Custom corner lights Farenheit headlights Mesh Grille Shaved emblems (except white A on back) 17" Nakayama Mach 7's w/ Kuhmo rubber Pilot fog lights Reverse indiglos blue neons under dash remote start and alarm body color painted trim Soon: HID's, NOS, possibly custom turbo, and In-Dash TV/DVD

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03-31-03, 11:05 AM	#2 (permalink)
89 LS All Stock Member Join Date: Mar 2003 Location: Barrie, Ontario, Canada Posts: 28 Car 1: 1989 L, Gold Sedan iTrader: (0)	I have had a problem with my cooling fans as well, but almost the opposite if what Migey is describing. Here it is, when my car starts the fan starts automatically for about 30 second and then shuts off. Sometimes it does not come on again even if the car begins to overheat. Usually all I have to do is shut off the car and start it again and the fan comes on and cools off the engine. I guess something is getting reset? It is pretty bad in stop and go traffinc in the summer and with the summer coming again I want to get rid of this problem. Any thoughts? Could it have anything to do with the thermostat as well?

03-31-03, 02:35 PM	#4 (permalink)
jake Registered User Join Date: Jun 2002 Location: british columbia Posts: 174 Car 1: 1992 acura legend 4 door iTrader: (0)	does your car have 2 fans or just one my 90 has 2 and as soon as you turn on your a/c the 2nd fan should start automatically, I had problems with mine last year not turning on when it should, if you check the wires by the front drivers side headlight at the bottom of the radiator, that was the problem with mine snow must have broken the wire. just might be the same thing.

03-31-03, 05:54 PM	#5 (permalink)
Migey Registered User Join Date: Feb 2003 Location: Canada Posts: 2 Car 1: Acura Legend 1988 iTrader: (0)	thanx guys I will check it out.

03-31-03, 10:42 PM	#7 (permalink)
89 LS All Stock Member Join Date: Mar 2003 Location: Barrie, Ontario, Canada Posts: 28 Car 1: 1989 L, Gold Sedan iTrader: (0)	Thanks for the ideas guys, I will definately have a look at the wires under the rad and yes my 89 does have 2 fans also.

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