Question about 2004 Ford F150

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Why is my 1998 ford f150 heater fan and radio stay on when ignition is off?

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5 Suggested Answers

jamaicanmech
  • 17 Answers

SOURCE: My 1999 Ford F150 Heater only blows out cold air

guys have you checked for a vaccum leak????? there is a little plastic ball with a vaccum line going to it that controls the outside air coming in. check for a leak in this line

Posted on Jan 08, 2009

  • 70 Answers

SOURCE: how to replace a heater core in a 1998 ford f150

This is way complicated involving taking out dashboard and heating unit. Will cost about $700 to have someone do it. You can do it yourself if you have some mechanical knowledge. But not over a fixya. Buy a chiltons manual at auto part store and look up to see how hard it is.

Posted on Nov 04, 2009

  • 2841 Answers

SOURCE: 2003 Ford F150 Heater fan problem

The problem is the Blower Motor Resistor Pack is defective. Purchase the Pack so you will know what you are looking for. It can be located in a few locations. It can be behind the glove box, behind the kick panel on the passenger side, or next to the blower motor. I am almost certain yours is located behind the glove box but not 100% sure. Hope this helps you.

Posted on Nov 16, 2009

Testimonial: "clay58 good job on the resistor. Right on info. "

sscullys
  • 984 Answers

SOURCE: f150 1997 ford heater fan only blows on hight

Plan on finding a melted blower motor resistor. Usually when the blower goes single speed, the blower motor resistor is the cause.

You can find it on the passenger side, looking up behind the dash / Glove box area.
In this picture the passenger side kick panel ( where the inertia fuel switch is at ) is on the right hand side of the picture.
e599ffb.jpg

This is what it might look like when you get it out :
76bb5d6.jpg
The blower motor only has the 1 fuse and blower motor relay on it. If it works on high, those are OK..

Parts should be less than 75.00 total from a dealer, and it is a metric socket and lay on your back on the passenger side floor repair, real easy and quick.

Posted on Nov 16, 2009

  • 2 Answers

SOURCE: when I turn off my ignition, my heater fan will keep running

I just started experiencing the same problem. Yes, typically after rainy days, I can never get the interior lights to go out after the ignition key has been removed. The car acts as if there is a door open. Now, my latest problem is with the heater fan. Of course, putting the control in the "off" position will turn it off but you can turn it on and off with no ignition key installed. I'm also having problems with my heater core too so it's been a pain in the but!!

I believe this problem has also caused my battery to die which is why I'm on this site in the first place!! I can't get into the car with the keys and the dead battery won't allow me to unlock the car!! When it rains it pours!!!

Posted on Jan 04, 2010

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1 Answer

MY RADIO STAYS ON WHEN I REMOVE THE KEY and close the door


radio stays on after removing key from ignition - Car Talk

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Mar 4, 2012 - this just started today and when i turned off my car and removed the keyfrom the ignition, the radio stayed on.

04 F150 - Radio stays on after key removed & door open ...

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Mar 2, 2008 - You know how you can take the key out of the ignition (after turning off), and radio continues until you open the door? Well, yesterday I opened ... More results from www.f150online.com

Oct 22, 2015 | Chevrolet Astro Cars & Trucks

1 Answer

1998 Ford F150 tries to start with key off or when engine is running


It sounds like a short in your fuse box. They are known for this problem in these trucks.

Apr 06, 2014 | 2006 Ford F-150 Regular

1 Answer

Location for the fan relay for ford f150 -1997


It is located in the blower/flasher relay block mounted behind the center of the dashboard above the transmission hump behind the radio/climate control area.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Jan 30, 2012 | 1997 Ford F150 Regular Cab

1 Answer

SAfter shutting off the truck, radio and fan continue to run. Also, went out the other morning and found radio running without keys in the ignition. I tried replacing the relay switch in the fuse box. ...


Check and make sure the ignition switch is not worn out and allowing you to remove the key when the switch is turned backwards in teh accessory position. once the key is removed and the radio is staying on, turn the ignition without the key in it, both directions and see if it shuts off, if it does, menas work cylinder or key.

Nov 26, 2010 | 2003 Ford F150 Regular Cab

1 Answer

I have a 2000 ford taurus and the radio quit working and the heater come on when you start the car and the heater is off


We have a 1998 Ford Taurus that has the radio in an oval bezel that has the heater controls also on it.

If this is like your vehicle, then when you remove the radio using two coat hangers shaped like a 'C' then you can see where the electrical connections go for the fan and the heater setting.

The radio in our 1998 Ford Taurus started to malfunction with the volume level not being adjustable.

After taking the radio out, and putting it back in, a week later the problem went away, mysteriously, and to my surprise.

Hope this helps.

Jun 27, 2010 | 2000 Ford Taurus

1 Answer

1998 Ford Truck F 150 2WD Pickup V8-4.6L SOHC VIN


this is not a job for the faint of heart!! you have to remove the complete dash! the heater box is located hehind the radio !in the middle of the dash ! theres no way around!!!

Mar 20, 2010 | 1998 Ford F150 Regular Cab

4 Answers

When I turn off my ignition, my heater fan will keep running


I just started experiencing the same problem. Yes, typically after rainy days, I can never get the interior lights to go out after the ignition key has been removed. The car acts as if there is a door open. Now, my latest problem is with the heater fan. Of course, putting the control in the "off" position will turn it off but you can turn it on and off with no ignition key installed. I'm also having problems with my heater core too so it's been a pain in the but!!

I believe this problem has also caused my battery to die which is why I'm on this site in the first place!! I can't get into the car with the keys and the dead battery won't allow me to unlock the car!! When it rains it pours!!!

Sep 15, 2009 | 1998 Ford Expedition

2 Answers

2002 F150 starting issue


sounds like you might have a problem with your ignition switch, it's sticking and acting like your key is in when it's out.

Mar 02, 2009 | 2001 Ford F150 Styleside SuperCrew

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