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1998 Taurus cooling fan not working. Only 92,000 miles w/

Customer Question
1998 Taurus cooling fan not...
1998 Taurus cooling fan not working
JA: Are you fixing your Taurus yourself? What have you tried so far?
Customer: yes
JA: Anything else you want the mechanic to know before I connect you?
Customer: only 92,000 miles w/ new water pump, thermal switch for fan relays may be okay not sure
Submitted: 5 months ago.Category: Ford
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Answered in 5 minutes by:
7/1/2017
Ford Mechanic: K. Wiggins, ASE Certified Technician replied 5 months ago
K. Wiggins
K. Wiggins, ASE Certified Technician
Category: Ford
Satisfied Customers: 3,063
Experience: ASE Certified Technician, Associates Degree in Automotive Technology, 15+ years in the trade
Verified

Hello, what's the VIN?

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Customer reply replied 5 months ago
1FAFP52U3WG271692
Customer reply replied 5 months ago
MAY I TRY ANOTHER TACH
Ford Mechanic: Dan, Technician replied 5 months ago
Dan
Dan, Technician
Category: Ford
Satisfied Customers: 24,865
Experience: Independent Shop Experience, 2 Year Automotive Diploma, & Access to Information Database
Verified

Is check engine light on? Do you plan to do the work yourself? Thanks.

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Customer reply replied 5 months ago
ENGINE LIGHT ON CUZ I UNPLUG THE WIRE TO THERMAL FAN SW. THE FAN RAN SO I CAN MAKE IT HOME I CAN RESET WITH MY OBD II . I AM A MOTOR MECH, THUS I REPLACED 2-NEW HEADS ON THE MOTOR, RUN VERY SMOOTH NOW BUT MAY OVERHEAT IF I DONT FIX FAN TURN ON.......
Ford Mechanic: Dan, Technician replied 5 months ago

Is check engine light on with everything plugged in?

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Ford Mechanic: Dan, Technician replied 5 months ago

Also, does it ever run hot while going down the highway?

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Customer reply replied 5 months ago
OF COURSE CAUSE THE FAN NOT RUNNING, BUT TEMP GAGE NOT HIGHER THAN 1/3 SHOWING
Ford Mechanic: Dan, Technician replied 5 months ago

It shouldn't run hot while going down the highway because road wind act's as the fan. If it overheats while going down the highway then you have other problems. Does it run hot while going down the highway? The temp gauge normally sits in the middle.

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Customer reply replied 5 months ago
MY BELIEF IS IF YOU LET ANY CAR W/ EXTERNAL FANS NOT CLUCH, IDLE FOR A WHILE THE FAN SHOULD RUN....AS A REMINDER TUARES HAS A SMALL FRONT OPENING THUS NOT MUCH AIR FLOW AS MOST OTHER CARS...YES IT STILL GETS HOT EVEN AT 70 MPH ON HIGHWAY...W/ FAN NO GO
Ford Mechanic: Dan, Technician replied 5 months ago

Does temp gauge go past the half way mark going 70 down highway?

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Ford Mechanic: Dan, Technician replied 5 months ago

Have you replaced thermostat?

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Customer reply replied 5 months ago
REPLACED THERMOSTAT, GAUGE NOT NEAR 1/2, AT ALL BUT IF TEMP SENSOR NOT REGISTERING RIGHT, IT MAY NOT TRIGER PCM COMMAND !!!!! TO FAN......
Ford Mechanic: Dan, Technician replied 5 months ago

The fan only comes on when needed, if gauge isn't going to the middle then fan probably just isn't needed. Is vehicle spitting up coolant? If it was overheating it would be.

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Customer reply replied 5 months ago
UNLESS FAN IS RUNNING, HIGHWAY OR IDLING RADIATOR IS ALSO NEW LESS THAN 6- MONTHS, MILEAGE ONLY 92,000 MILES
Ford Mechanic: David Craig, Auto Mechanic replied 5 months ago
David Craig
David Craig, Auto Mechanic
Category: Ford
Satisfied Customers: 4,176
Experience: owner/mechanic at 3D Automotive
Verified

Hi Im David, lets get away from all of this when you think it should be running. I dont care if you are going down the highway or not the fan will not come on until it gets a bit over mid gauge.

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Ford Mechanic: David Craig, Auto Mechanic replied 5 months ago

i dont care if it sits there and idles for 3 hours, its not going to come on til it needs to

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Ford Mechanic: David Craig, Auto Mechanic replied 5 months ago

So what exactly is your main concern? is it overheating is the temp gauge matching a digital temp reading at the thermostat housing or the temp sensor? is the computer seeing the same temp as the gauge?

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Ford Mechanic: David Craig, Auto Mechanic replied 5 months ago

are you there?

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Customer reply replied 5 months ago
i don't know if computer reading right with temp sense but it overflows at reservoir and causing heat up at engine but dash gauge stays at 1/3 .....indication
Ford Mechanic: David Craig, Auto Mechanic replied 5 months ago

ok, replace the coolant temp sensor for starters.

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Ford Mechanic: David Craig, Auto Mechanic replied 5 months ago

when the engine is at operating temp, are both radiator hoses equally hot?

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Ford Mechanic: David Craig, Auto Mechanic replied 5 months ago

also, once the engine is at operating temp and you shut it off, when you remove the cap, is the system under pressure?

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Customer reply replied 5 months ago
I know about that check......I am a motor back yard mech thanks but not ford cooling system
Customer reply replied 5 months ago
by the way yes the cap is at pressure
Ford Mechanic: David Craig, Auto Mechanic replied 5 months ago

so you have checked those 2 things?

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Ford Mechanic: David Craig, Auto Mechanic replied 5 months ago

how about the hoses?

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Customer reply replied 5 months ago
hoses no fray or ware, the car has 92.000 miles only I installed 2-new heads, water pump, thermostat,thermal fan sw.....the motor runs like new after my repair, but the prob is fan does not run period in less I rig the supply to fan elect.........!!!!!!
Ford Mechanic: David Craig, Auto Mechanic replied 5 months ago

ok. then lets work on that, but in noway should the coolant be boiling out of the reservoir, fan working or not.

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Customer reply replied 5 months ago
okay......I am running out of options to think about this ....may it's electrical to relay commands.....i'm asking.......
Ford Mechanic: David Craig, Auto Mechanic replied 5 months ago

do you have a volt meter?

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Customer reply replied 5 months ago
by the way...when I j-rid fan it does not over boil at reservoir ever ....runs normal freeway or local
Customer reply replied 5 months ago
I am into electronics with a FLUKE METER..
Ford Mechanic: David Craig, Auto Mechanic replied 5 months ago

understood. but theres still an issue with it overheating.

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Ford Mechanic: David Craig, Auto Mechanic replied 5 months ago

ok, let me look at the print for a minute and we'll start checking things

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Customer reply replied 5 months ago
THANKS MUCH
Customer reply replied 5 months ago
ALL HIGH LOW FAN FUSES CHECK GOOD
Ford Mechanic: David Craig, Auto Mechanic replied 5 months ago

ok

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Ford Mechanic: David Craig, Auto Mechanic replied 5 months ago

pull the low speed fan relay.

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Customer reply replied 5 months ago
OK JUST GIVE RUNDOWN CUZ I CANT RUN TO CAR BACK AND FORTH IF POSSIBLE I WILL WRITE DOWN
Ford Mechanic: David Craig, Auto Mechanic replied 5 months ago

ok. hang on

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Ford Mechanic: David Craig, Auto Mechanic replied 5 months ago

thanks for your patience

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Ford Mechanic: David Craig, Auto Mechanic replied 5 months ago

pull the low speed relay out. make sure you have 12vdc at position 30 of the relay plug. doesnt matter if the key is on or off. then pull the high speed relay and check for 12vdc on position 87 of that relay plug. if those voltages are there, then put a jumper in the low speed relay plug from 30 to 87, key on and see if the fan runs on low speed.

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Customer reply replied 5 months ago
OKAY MAKES SENSE BUT IF ALL FAILS REPLACE RELAYS OR NOT...GENERAL QUESTIONS
Ford Mechanic: David Craig, Auto Mechanic replied 5 months ago

no. relays dont go bad as much as people think

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Ford Mechanic: David Craig, Auto Mechanic replied 5 months ago

once you get those checks done. we can do more.

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Ford Mechanic: David Craig, Auto Mechanic replied 5 months ago

hows it going?

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Ford Mechanic: David Craig, Auto Mechanic replied 5 months ago

any progress?

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Ford Mechanic: David Craig, Auto Mechanic replied 5 months ago

were you ever able to get anything figured out?

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Ron
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