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My radiator fan keeps running 2005 honda pilot

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  • Honda Master
  • 20,706 Answers

Which ones, there can be 3 or more.
the one way far up front , is the A/C (condensor fan)
the 1 or 2 behind the engine radiator, are just that , engine cool fans.

the fsm covers these test. and varies by YEAR,
the fastest best source of this data. is
alldata.com
or mitchels.

on newer cars, the fans are controlled by the PCM.
on older cars a separate module (engine) and relays both.

the first rule,is
iS the engine overheating. y/n. 200f not, 250 yes.
we use a $20 IR pyro gun to anwer that , easy and safe
no cut hands, or burns, point and shoot, magic.
ask for more...

no ?
we then pull the fan relay, still running (impossible ,if yes)
if relay cuts, fans , we then ask way
bad contoller or controller lied to.
in the case of PCM control the ECT is fibbing, or air in the block.
in the case of the seperate module cars, its bad or its sensor is bad.
the FSM covers these tests on all cars made, step by step
get one and keep car running for 10 more years.


Posted on Jan 01, 2014

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SOURCE: Honda Pilot 2005 garage door programming

Hi,welcome . Homelink has a website and phone number for programing help contact.
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website at www.homelink.com. they have a very good support system to hep you with problems.

Posted on Apr 02, 2009

Korean
  • 1 Answer

SOURCE: 2005 honda pilot will not start

I had a similar issue, but I think it's because I left the tailgate door open slightly and the built-in light killed my battery. I jumped my battery, but I wasn't able to start my car again and this time the door was closed properly. I was told by Honda that the batteries only last for about 2-3 years. I have since replaced the battery and no more issues.

Posted on Jul 27, 2009

  • 2841 Answers

SOURCE: fix honda pilot 2005 fan relay

It can be the A/C switch causing this, but not likely. Make sure to turn the A/C off when you stop. If it still does it after turning the A/C off, replace the thermal relay.

Posted on Oct 04, 2009

freetek
  • 5568 Answers

SOURCE: 1991 honda accord the radiator coolant fan won't

If the cooling fan shuts off after a few minutes with the ignition off, this is normal for most cars; it prevents hard starting in hot weather. If it fails to shut off after a reasonable period, say 10 minutes or longer, the relay for the fan may be faulty.

If doesn't come on during running and the gauge is in the normal range, this is also normal.
If it doesn't come on when the engine temp is above normal, the sensor for operation has failed. This is normally located on the bottom tank of the radiator and will have either one or two wires coming from it and most have a hex base for removal and installation. These are fairly common failures.

Posted on Apr 06, 2010

  • 6 Answers

SOURCE: audi a3

Does it keep running till the batt is flat? It could be the aircon condenser fan running - on the left as you stand in front of the car. This is a common prob with A3s of this age.
I have a '05 3.2L Quattro V6 and suffered the same prob. The batt is in the boot of the V6 and is sealed like Fort Knox so impossible to disconnect. After about 3 days with this the fan running constantly and having to put a charger on it every night I let the batt run completely flat to try and reset the complete system - no DIS lights - no starter motor clicks - DEAD. Then I jump started it and the prob disappeared completely. Everything is working perfectly ncluding the aircon. That was 4 days ago and 'touch wood' I've had no probs since. I know this won't work for everyone but it's worth a try before forking out £300+ for a new condenser fan unit. Good luck!

Posted on Apr 24, 2010

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2 Answers

2004 Honda Pilot runs hot when stopped. Change the thermostat but notices the radiator fan is not turning on. Could it be the cooling fan fuses ?


Yes... Misty B,

Could be a relay (also).

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Why won't it start?


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Jan 01, 2016 | 2005 Honda Pilot

1 Answer

Battery keeps dying, fan wont turn off?


Assuming the Pilot radiator fan is supposed to run with the ignition off, the relay theory sounds plausible. I'd pull the fuse to make sure and if the fan always comes on with the fuse in, I'd replace the relay.

If your battery is original and more than a couple years old, I'd just replace it also.

Aug 18, 2015 | 2013 Honda Pilot

1 Answer

05 pilot, phx, 95 degrees, started blowing hot when idling, works fine when driving. Ideas?


check fan operations
the indications are that they are not running or running fast enough

Mar 28, 2015 | 2005 Honda Pilot

1 Answer

My car is off but I hear a fan noise-type coming from the hood. Is that normal?


It is the electric fan for the radiator. It may stay on for a while for the car to cool down. I have never liked cars that do this. Once they kick off they probably will not kick back on, but for this type electric fan set up I would never put my hands near the fan without the battery completely disconnected.
You also might have the engine off and the ignition on, make sure the key is actually in the "Off" position and remove the key. A worn key cylinder may let you remove the key even though it is not actually in the "Off" position. So be careful and sure of what is actually happening.
Good luck and keep all your fingers.

Mar 10, 2015 | 2005 Honda Pilot

1 Answer

Transmission fluid in radiator & running out radiator overflow bottle


The transmission cooler is located inside the radiator on pilots, they are notorious for rotting out and leaking ATF into the radiator and vice versa. This wil quickly lead to your transmission seals failing and destroying your transmission. Happened to my wife's pilot and got Honda to split the bill

Sep 10, 2012 | 2005 Honda Pilot

1 Answer

2005 Honda Pilot. Temp guage goes up but then comes back down to half when the a/c or defrost is on. If sitting in traffic is still goes up until moving again.


There are several possible problems causing the temp increase.
  1. Low coolant level
  2. Leak in radiator hose
  3. Leak in radiator
  4. Bad waterpump
With low coolant levels by any 1 or a combination of 1-4, the vehicle will run hot at low speeds and at idle. Running the AC or heater pushes the remaining coolant through the system faster, aiding in cooling the engine but all indications are you've definitely have a cooling system issue that should be looked at immediately before doing damage. If the coolant level is good (when car is cold, open radiator cap and check for coolant level), the issue most likely lies in the waterpump.

May 04, 2011 | 2005 Honda Pilot

2 Answers

I HAVE A 2005 HONDA PILOT WHEN I STOP TEMP GOES TO HIGH BUT WHEN I DRIVE OFF IT GOES BACK TO NORMAL


fan not coming on ,sensor or a RELAY /FUSE or the push in electrical connection for the fore mentioned

Sep 03, 2010 | 2005 Honda Pilot

1 Answer

Fix honda pilot 2005 fan relay


It can be the A/C switch causing this, but not likely. Make sure to turn the A/C off when you stop. If it still does it after turning the A/C off, replace the thermal relay.

Oct 04, 2009 | 2005 Honda Pilot

2 Answers

Coolant Replacement 2006 Pilot


no you got it right just make sure it isnt tranmission fluid when it comes out. hondas are tight you gotta bust your nuckles up a bit. or try buying a long pair of needle nose pliers to get to it

Feb 09, 2009 | 2005 Honda Pilot

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