Question about 2004 Ford F350

1 Answer

My fan want to race or speed up when I pull away from a stop. It is like when I am pulling a load up a grade and the fan speeds up to keep the engine cool. why would it be doing this?

Posted by on

  • larrygoodeno Sep 26, 2009

    Why would I have just lately just noticed it? I bought the truck new in 04 and it seams that it just started doing this.

  • larrygoodeno Sep 26, 2009

    It has just turned 134,000 so this may be the reason


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 1,884 Answers

This because when the engine is cold or not hot, there is little need for the fan to cool it. But when the engine gets hotter the need to cool it increases and the fan takes off. As the need increases further so does the speed of the fan upto a limit. So there is nothing to worry about as long as the fan is working. You should however,worry if the fan does not run when you have run the engine up a slope. Actually the fan runs even when you have switched off the truck till the engine cools to a certain level of temperature.

Posted on Sep 26, 2009

  • Vinay Tevatia
    Vinay Tevatia Sep 26, 2009

    One may be. That the truck is getting older now and needs more cooling that what it did before.


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

2 Answers

How do i know that my fan clutch is gone in my 2004 isuzu adscender

posted now twice.
why do that?
the full answer is there.
and this.
this is the PCM modulated fan . the PCM modulates this with PWM signals based no an electronic tempetature thermistor there.
not like old Isuzu's at all.
check fuses first.
scan it next. not last. scan it NOW.
there are 9 DTC related to this DEVICE !!!


Aug 22, 2015 | Isuzu Cars & Trucks

1 Answer

2008 chrysler town country radiator fan don workin high speed

If you have a viscous fan hub attached to the fan then it will not be working at high speed as there will be enough air flowing through the radiator to keep things cool. They only really work at high engine loads and slow speeds (hill climbing ) and at stop lights where the air flow is nill

Jan 22, 2014 | 2009 Chrysler Town &

1 Answer

A/C fan stops completely (No Air) when accelerating.

The blower is probably running when you are accelerating, but you may not have air coming out the dash vents. If there is a vac leak in the HVAC the vent control will go back to the default setting which is defrost. You may not have enough vac to keep the blend doors on the vent setting when the engine is under load.

Jun 05, 2013 | 2002 Ford E350

3 Answers

Does 4 wheel drive help you stop faster or is it just a traction device

Four wheel drive is a traction devise. Not a braking devise.
So, no it will not help you stop faster.
That said, on slippery conditions when you let off the gas the extra, "traction" will help slow you down if you do not slide.
Hope this helps you out.

Dec 30, 2010 | Chevrolet Blazer Cars & Trucks

1 Answer

When my air conditioner or heater fan is on the engine willnot idle.

The engine naturally speeds up to compensate the additional load to pull the a/c. Depends on how much it speeds up to say that it is running too fast.

Apr 05, 2010 | 2001 Chevrolet Tracker

2 Answers


It fans! Kidding. Ok, that psrt in the middle is the clutch. It is a viscous/fluid that expands as it gets hot. In doing do it forces the fan blades to keep up eith the shaft it is attached to. Of course it then pulls more air through the radiator for cooling. At higher speeds, above 35 miles per hour the fan becomes in effective due to vehicle speed forcing air through the radiator. The fluid in the fan hub cools and the fan is left to freewheel in turn taking away the fans parasitical load. That's what it does. If you are overheating, The fan is only to blame at low speeds. If you overheat over 35, Chances are real good your thermostat is acting up. Good Luck and quit spinning the fan! :)

Oct 07, 2009 | 1999 Land Rover Discovery

1 Answer

99 civic ex

sounds like the clutch might be sliping to test try pulling away with handbrke on if the engine races without any pulling against the brakes the clutch is sliping and you will probely notice a burning smell

Oct 05, 2008 | 1999 Honda Civic

1 Answer

1993 Saturn,5 speed; engine races when no power is applied to drivetrain, stalls when pulling away from stop, RPM's drop to near stalling when A/C is activated, black soot blows from exaust, exaust system...

Have you ever changed your Engine Coolant Temperature Sensor (ECTS) ? This small (about the size of your little finger), if bad, will cause your engine to run very erratic. It is a sensor, screwed into the engine, and the other end connected to your car's computer and is not the sensor that shows your coolant temperature on the dashboard. If it is bad, it will keep "telling" the computer that your car is not warmed up, and it needs more fuel. Auto parts stores should have the sensor for less then $20. GET THE ONE WITH THE BRASS TIP. Google "saturn forums", pick "saturn fans" and all the saturn "stuff" is on that forum.

Aug 02, 2008 | 1993 Saturn SC1

1 Answer

Fan motor keeps running on Audi A4 2004

fan motor has a thermal switch which turns on the fan as soon as the engine heats up. what happened there is that the switch is stuck on the closed position which keeps the fan on all the time. you should go to a garrage and have the part changed.

Jul 20, 2008 | 2004 Audi A4

Not finding what you are looking for?
2004 Ford F350 Logo

Related Topics:

22 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts


Level 3 Expert

75822 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers


Level 3 Expert

5501 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides