Just noticed something funny yesterday while flushing my radiator. I have an 04 F350 with the 6.0. When I have the heat set to come out both high and low vents, the A/C compressor also kicks on. The pipes by the passenger side firewall get cold. If I set the heat to just come out high or low, it turns off. This is not with the defroster on. Why does this happen? Is it supposed to happen?
View 5 RepliesI bought a used 99 f250 v10, i went to turn on the a/c today, and it only blows where the defrost is toward the window. it gets cold after awhile, but nothing out the vents, the heat either.
View 9 Replies2002, F250, 5.4, ZF6, 140k.
My heat only blows through the defroster. I was looking for my vacuum pump, but can't seem to find it. I find plenty of diesel threads where they show it, but mine isn't in the same location. I can actuate the diverter by hand and it will make the heat stop at the defroster and come out at your feet.
I have attached images of my rig.
Were to look for the vacuum pump? Any key spots to look for failed vacuum lines? What is this?
This is where most threads say the vacuum pump should be.
This switches from defrost to floor when operated manually.
My heater stopped working.
View 9 RepliesI have an F-250 Ford, 2006, 6.0 turbo-diesel. Started noticing that my heat only works while running at 70 mph or more and the turbo is at around 15-20 psi. Now that it has gotten cold it is definitely an issue. Truck does not overheat, I am not able to feel heat on the hose after control vlave and I do not feel any vacuum on the line (grey) to the control valve. I have checked for leaks, changed out the fill cap, checked anti-freeze level, pulled control valve just to verify its position when opened (which it seems to stay open). It's getting really cold in the cab of that truck now.
View 4 RepliesI have a 2000 F250 SD 4x4. I noticed the other day that after driving the truck for 10 miles or more and then stopping and getting back in it feels like the parking brake is on. I drove the truck home and on my way back I smelled brakes burning but it wasn't pulling while driving or braking. When I got home I put my head in the wheel well to get a look at the brakes on the drivers side it seemed ok, but when I did it on the passenger side it was hot as Hades! It's been my experience that if the caliper is hanging up it will pull either while braking or regular driving. I just want a better idea before I go ahead and buy a new caliper and hose and tear the dang thing apart.
View 8 RepliesI have a 2008 F350 and there is nothing blowing out of the vents or defrost for AC or heat. It doesn't matter what fan speed is set. Would this indicate a blower motor? Where exactly is it located and how to change?
View 8 RepliesI have a 06 f350 super duty and noticed that when I have the heat on and driving about 40-50 mph I get the smell of coolant inside the cab. My temp gauge stays right in the middle like normal. When I got home tonight I opened the hood and didn't see nothing major. I took a picture .....
View 8 RepliesSo my issue, had heat last year, turned on first time this year and its cold. So I did some research on the site and have done a few things but still no heat
First thing I did was flushed coolant system and add new coolant as I have 235,000 miles on the truck and it looked rough
Ran the truck for a while and checked heater core hoses, they were both warm, not hot by any means so I pulled the thermostat and replaced the thermostat and gasket
Now the hoses to heater core are both hot and my temp gauge went up about 1/4" higher than it ever has, but still no heat.
Blows fine, just cold or sometimes luke warm. I pulled the glove box back to try and see I I could hear anything when I change from hot to cold and I hear or see nothing. Only movement I see is when changing cycles from defrost, heater, ac... So could this be a blend door issue an how do I get to the blend door, is it behind the big plastic plenum box?
Don't get much rain here in SoCal except during the winter. After the last rain I noticed that there was water in the heating/ac vent system - or at least that's where I think it was.
When I made a right hand turn some water slopped out onto my foot and gave me quite a shock for a second till I figured out what had happened.
I suspect that there must be some kind of drain tube for the vent system that's become clogged, but before I start crawling around under the truck and dash I figured I would ask here first. Any useful tip on clearing the clog?
My manual heat/cold adjustment dial is working fine and transitions from heat to cold readily. However when in max heat, it is blowing luke warm. The higher the RPMs going down the road the warmer it blows (still not near as hot as normal), then idling at stop lights or in park it goes back to warm only.
My engine temperature is running normal at all RPM levels while driving and idling. Partially clogged heater core maybe, where higher RPMs force more water through it? I assume its not the water pump or thermostat since my operating temperature is staying normal...
Having problems with no heat at idle or low heat in the cab. I just bought this truck a couple weeks ago and have a limited warranty on it. The truck makes no heat at idle. I start it and let it just run, engine temp gauge goes up to normal operating temp in 15 min or so, still nothing from the vents but cold air. If I drive it I get a "little" heat, at idle, cold air again. I believe the thermostat is working because like I said, engine temp stays right in the middle.
Brought it to local ford dealer, their diagnosis was heat core clogged and needed to be flushed, had that done. truck has been running 40 minutes in the driveway now, engine temps nice and warm, no heat. What could be the issue? I took a picture of what I believe are the lines running to the heater core, just barely warm to the touch, not hot by any means. It looks like there is a vacuum actuator on the line running in but there is no hose attached to it, what this it, should it have a line running to it?
I have a 06 f350 6.0. I'm losing hear at times. My temp gauge is right in the middle like always. As soon as I let off he throttle or come to a stop the heat turns cold and blows out cold air!
View 2 RepliesI installed a Hopkins back up camera early last year. The original double sided tape that holds the monitor to the windshield didn't hold up long. Tried some of the gorilla double sided tape. A couple weeks max. Then I tried the 3m double sided tape. It would work a month or so. Did good all winter, but now I'm going to have to redo it for a 4th time already this year. It sticks to the glass, it's pulling loose from the plastic mount made onto the monitor.
View 3 RepliesMy 2006 F-250 SD with 6.0 diesel has some sort of cut-out for the heater circuit, and possibly for the A/C as well. This truck was probably a fleet vehicle for the Houston Port Authority. Didn't really notice this peculiarity until it got really cold outside. If I start the truck up and let it idle for 10-15 minutes the water and transmission temperature get up to the normal operating ranges but the heater/defrost circuit does not heat up. Cannot defrost the windshield.
If I drive to the end of my driveway, about 600 feet, the heater/defroster starts putting out good heat. When driving, if I have to stop at a stoplight, or any other pause, with the truck still in gear, the heater output starts to cool down. I suspect that this feature was incorporated in the circuitry at the factory to prevent the driver from sitting still to keep warm. The truck MUST BE MOVING to allow heat or defrost to operate. The blower motor operates and it doesn't matter if the truck is in gear or not.
I have a 2001 f250 5.4 that when you turn the heat on the trucks motor and exhaust bog down for a few seconds then comes right back up...
View 4 RepliesI have a 2001 F-350 S/D w/7.3. Question is... Is it possible for the mode switch ( one controls floor/ defrost and A/c ) to not function or should I say leave the a/c on even if it is not in a/c position? What I have noticed was that when it is in the floor mode or the vent mode (not the floor/vent) the compressor does not come on. When it is in vent/floor or either a/c modes it does. Is this normal... I don't think so though I do know anytime the a/c is switched on compressor should come on but no time without a/c being on.. Maybe I'm wrong
View 9 RepliesIt is starting to get cold where I live in Idaho, 22 this morning, and when I use the factory remote start on my 2011 the heater is not coming on as the owners manual says it should.
View 6 RepliesI have a 2003 F250 Super Duty 5.4L V8 with no heat. It wasn't missing, running funny or blowing white smoke out of the tailpipe and there were no coolant leaks nor did it overheat. Thermostat has been replaced twice, heater core flushed twice, water pump replaced, fan clutch replaced and blend door works...Cabin airflow gets colder when turned from hot to cold. This thing is sitting in my driveway and I am about to push it over a cliff. Did I mention it only has 56,000 miles on it?
Coolant was drained to replace water pump and flush heater core (again, water ran through in both directions with no stoppage). 3 gallons of undilluted antifreeze was put into the overflow bottle to be topped off with water...the coolant went in and stopped. Engine was started to force coolant from bottle...coolant backed up into the bottle and out the top. Heater core inlet hose is hot and outlet hose not very warm if at all. Upper radiator hose is soft. Didn't check lower radiator hose as I was a bit peeved and slammed the hood closed and called it a night. I have been throwing money at this thing that I do not have and am at my wits end with it.
Truck is a 1999 F-250 with manual climate control with A/C.
Heater core issue:
Heat is not very warm after engine is fully up to temp. Would like to back flush the heater core without damaging or making it leak. How should I do this safely?
Secondly, if I do make it leak, how hard is it to change out?
Last Oct. I noticed that my ac/heater started to intermittently stop blowing from AC fresh air/recir/vent/etc. mode and stick to defrost only. Do I have a bad switch and or a vacuum issue here? It's a '01 F350 CC 7.3 .....
View 6 Replies