Fan Clutch question
Thread Starter
|
Junior User
Joined: Sep 2010
Posts: 69
Likes: 0
From: Colorado
Fan Clutch question
Is there a way to check if the fan clutch is engaging? I think my fan clutch may not be. When hauling a light load up a mountain pass the temp gauge will climb to between the M and A in NORMAL. I have brought the truck up to normal operating temperature, shut off, and then checked the fan rotation. The fan will turn with little resistance. Is this normal? Should'nt there be some resistance when the engine is warm? How do I confirm the fan clutch is engaging?
Post Fiend
Joined: Feb 2009
Posts: 8,005
Likes: 7
From: Ottawa, Ontario
When it engages, you will clearly hear it! Sounds like an air plane taking off in front of you!
It should have rather alot of resistance cold or hot (if I go by my new one, that's what it is)
Heres the sound difference engaged and disengaged.
YouTube - What a Fully Locked in Fan Clutch Should Sound Like
It should have rather alot of resistance cold or hot (if I go by my new one, that's what it is)
Heres the sound difference engaged and disengaged.
YouTube - What a Fully Locked in Fan Clutch Should Sound Like
Thread Starter
|
Junior User
Joined: Sep 2010
Posts: 69
Likes: 0
From: Colorado
When it engages, you will clearly hear it! Sounds like an air plane taking off in front of you!
It should have rather alot of resistance cold or hot (if I go by my new one, that's what it is)
Heres the sound difference engaged and disengaged.
YouTube - What a Fully Locked in Fan Clutch Should Sound Like
It should have rather alot of resistance cold or hot (if I go by my new one, that's what it is)
Heres the sound difference engaged and disengaged.
YouTube - What a Fully Locked in Fan Clutch Should Sound Like
Postmaster
Joined: Apr 2009
Posts: 4,086
Likes: 1
From: Malahat/Cowichan Valley
Not to say it isn't bad but do t put too much faith in these stock temp gauges. How old and in what condition is the radiator? If out temp gauges are the same, the M on normal is 230. I installed a mech gauge which helps a lot. Now that I have a new rad, I cant get it to pass the N. Before you start replacing unnecessary parts, give a diagnostic to all.
Mountain Pass
Joined: Sep 2004
Posts: 146
Likes: 2
post #10 has the fan clutch hub test procedure.
https://www.ford-trucks.com/forums/8...ml#post7461511
https://www.ford-trucks.com/forums/8...ml#post7461511
Senior User
Joined: Jun 2010
Posts: 192
Likes: 0
From: Tennessee
drive it high speed for a couple minutes let the ram air get goin real good, pull over immediately pop your hood and see if its just spinning freely.... and at start up and idle and lower speeds it should probably be spinning fully. grab it with your hands if it is wobbaly then its bad. you should NOT be able to turn it with your hands at all.
edit: i have never heard my fan clutch operating...maybe I just cant tell the difference? the engine noise alone is much louder and enough to **** alot of people off... mine does all the time.. especially sonic drive-thru LOL.
edit: i have never heard my fan clutch operating...maybe I just cant tell the difference? the engine noise alone is much louder and enough to **** alot of people off... mine does all the time.. especially sonic drive-thru LOL.
Thread Starter
|
Junior User
Joined: Sep 2010
Posts: 69
Likes: 0
From: Colorado
post #10 has the fan clutch hub test procedure.
https://www.ford-trucks.com/forums/8...ml#post7461511
https://www.ford-trucks.com/forums/8...ml#post7461511
Trending Topics
Postmaster
Joined: Jan 2010
Posts: 4,319
Likes: 4
From: Elk City, OK
i had my truck in the middle of summer for 5 months before my clutch fan even came on, and that wasnt til i was pulling 12k up a 6% grade. even with my a/c on it never kicked on til then. and since its only come on one other time. they usually run pretty damn cool
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
Senior User
Joined: Dec 2010
Posts: 102
Likes: 0
well if your radiator is good i would check the thermostat i had that problem and that also helped with my heating system so what do i know i am just tryin to help people with what has happened to me so there you go. i need help with some break problems if you have any imput
Cargo Master
Joined: Mar 2010
Posts: 2,227
Likes: 149
From: Higginsville, MO
don't worry about much until you get a mechanical temp gauge installed. mine read high for about a week and when i got worried i was told to replace the stock gauge with mechanical first because the stocks are COMPLETE CRAP. and what do ya know it never gets above 210 unloaded and regularly stays near 195-200 in warm weather.
Thread Starter
|
Junior User
Joined: Sep 2010
Posts: 69
Likes: 0
From: Colorado
post #10 has the fan clutch hub test procedure.
https://www.ford-trucks.com/forums/8...ml#post7461511
https://www.ford-trucks.com/forums/8...ml#post7461511
Thanks to all.
Mountain Pass
Joined: Sep 2004
Posts: 146
Likes: 2
might want to try a thermostat first. that was my problem. only overheated under heavy loads pulling steep grades. the thermostat remained partially closed allowing the coolant in the radiator to remain cool enough to keep the fan from locking up and not let the hot coolant circulate out of the block quick enough. make sure you use the correct thermostat from Ford or IH, don't get one from an auto parts store.