The heater blower in my 1999 F350 continues to run after the switch is turned off. I checked the relay and it is working properly. Looking for a wiring diagram showing the control circuit for the blower?
Do the heater switch controls power to the relay coil or if the switch grounds the coil to pick up the relay?
Very strange things happening with 2009 F350 Gas, first the heater blower only is now working on high, progressively has gotten worse, low settings started not working a while ago, now only high works. Just recently the strangest thing, start the truck OK, turn on radio OK, turn lights on then the radio goes off. Will bring it to dealer in a day or two if I can't figure this one out.
View 3 Replies2001 f350 blower motor for (A/C - Heater) works sometimes and sometimes does not.
View 5 RepliesQuestion: How easy is it to replace the key switch - do I need any special tools? Is there a way to upgrade to one which requires an encrypted RFID key? Or is there an easier fix to my problem below?
Background: On my '05 SD, I am getting a weird problem where the ignition switch chimes Key-In sometimes when there is no key. I can get this to go away by fidgeting with the key switch, but since I am going to be installing a remote start / security system, I need to fix this...
My batteries drained twice and now I prob. need new ones but with the key off I can turn the blower on any speed and the passenger airbag light blinks. I hear the clicking from a relay under the dash when I do this. I have checked for leaks in the windshield and found none . The fuse box and the GEM are completely dry. My ignition switch will pull out with the key in it . I noticed this just the past few weeks . Now yesterday my odometer speedometer quit. It did pull a code for this. Maybe it is connected maybe not . My odl light is flashing but still works. My cruise doesn't but I realize it is connected to speedometer.
2000 F350 supercab diesel....
My blower doesn't seem to blow very hard. I've been in other fords and the ac and heat blows great. Someone suggested that that I pull the fan motor and clean the blades.
View 4 RepliesI have an '03 F250 and the second position of the blower switch doesn't work. The first, third, and fourth are all fine.
I bought a Motorcraft YH-1670 blower switch, but can't figure out where it's located?
I looked behind the glove box, but didn't see it there. I did not remove the screws to the cover behind the glove box because I wanted to first confirm where the switch is located.
2005 Ford F250 5.4 ... Having problems with ignition switch or bus bar in that circuit being bad?
View 3 Replies2003 F350 6.0L ... 171,000 miles ... 5,100 since oil change 15W-30 at the shop ...
I was driving on the interstate (50 miles of driving) struggling to maintain 70-75 mph at 2,200RPMs. I would accelerate and RPMs would go up to 3,000 but no speed. Before I could pull off speed slowed to 50 before dying. Sat on the side of the road 30 minutes before I could get it started. Had to give it gas. No misfires just quietly started. Couldn't go over 30 mph. Towed it to my destination 135 miles.
Volts on 7Pin FICM read fine.
Checked the fuel fulters. Air Filter. Tank for debris. Nothing.
My coolant reservoir was lose and I noticed a lot of coolant in the driverside front wheel well and down the left side of the undertruck. Reattached after checking FICM. Hope that was all it was cause I couldn't find any leaks.
I had Planned to have the oil changed before the return trip before this all happened. New to Diesel engines but I like a challenge. Where do I go next?
I just brought home an 04 F350. It is a V10, 6 speed, with 30,600 verified miles on it. It runs and drives fantastic, and that V10 is impressive! I am very impressed. I have noticed that the compressor cycles, even with the dial in the off position. Is this normal for the super duty, or is something amiss? If something is wrong, what direction do I look in?
View 13 RepliesLike the title says; I have a 2001 F350 with No blower Motor and Just Defrost, it is actually a friends, he is building a fence, and I am looking into the truck problem. The just defrost is probably a vacuum issue, but I do not have any book for this truck, so I have no vacuum or wiring diagrams. As far as the blower motor, I am thinking switch or motor, fuse has been checked? Is there any other "control" box involved with this year/model? Also any dash tear-out instructions, to make the access easier?
View 1 RepliesOkay, I've done a few topic searches and see some variations on this, but not this specific scenario. 2001 F-250 (5.4L, 4x4, auto). My daughter's truck and I wasn't home so this is the best info I have as relayed by her.
She turned the key off, the engine shut off, but all the "electrics" stayed on -- radio and a/c fan to be specific. She said that morning the truck had a dead battery so she got a jump start, leading one to suspect that the electrics stayed on the previous night as well. (?)
I had her disconnect the battery and let it sit until I got home. Of course, when I got home and reconnected the battery, everything works normally as it should. And has worked normally for a few days.
So.. any words of wisdom out there while we wait for "the next" occurrence?
2005 F350 Lariat ..... I cant get my AC to work in my truck.
AC will not cycle on, Originally thought the system was low because I jumped the pressure switch and it cycled fine (But did not cool inside the vehicle). Checked the pressure and it was in the 40lb range on the low side. My blower will only blow on high but I assumed it was a defective fan speed control.. Possibly an issue with the climate control?
I have a 2001 f350 this morning I went to start the truck the key turn but I heard a click sound all the lights and everything came on but the truck won't start just silence I could turn the key back in the off position and put the key out but the truck is still on radios on it's like the truck is still in the run position or on position there is a lot of play between off and run but like I said the truck will not start, could be not sure if it's the ignition switch or actuator rod..
View 2 Replies2002 f-350 diesel 4x4 7.3l. It stalls out a few times lately( and starts right back up) and it runs rough like there is an air bubble then smooths out. Changed 1 fuel filter and the pcv valve. 96,000 miles.
View 6 RepliesOn my 2008 SD F350 my number 1&2 settings on the fan don't work. Only 3&4. What's the problem? How do i fix it?
View 8 Replies1999 F350 Crewcab 4x4 dually V10. Fan switch only works on High. All fuses and relays look Good. Is it a bad speed control switch? What can it be?
View 8 RepliesI have a 09 F350 Lariat SuperCrew SRW 4x4, Last night the ignition key would not turn at all. Tried wiggling the steering wheel, (noticed it wasn't locked), wiggled the shift lever (auto trans). After about an hour of "beatn and jiggling, it just started working!?? What caused this, neither does my dealers service dept. It's working fine now.
View 11 RepliesHeadlights work well w/ ignition switch off. High/low/passing all ok. When I turn the ignition switch on, there's a strange wheezing sound for a second.
When the ignition switch is on, there are no headlights.
What's the wheezing sound? Why does the power to the switch quit with the key on? The more I work on modern trucks, the more I like my 1968 f-250.
I have the ford upfitter switches in my 07 f350 and i had two flashing lights wired to switch 4 (10 amps) for snow plowing. The lights were LED and shouldn't have drawn much power but suddenly the lights stopped working because thers no power going to the fourth switch. They work on all the other switches. What could be the problem?
View 5 RepliesI have a 2002 F350 V10 and one night I turned the headlights on and when the ignition switch was turned to the off position the lights would go off. When the ignition switch is turned off the lights come back on. I changed the ignition switch but the problem still exists.
View 3 Replies