Ford 7.3L Power Stroke (1999-2003) :: Heater Fan Stopped Blowing
Jan 9, 2016
The heater fan stopped blowing the other day. The fuses check out ok. What would be the most likely culprit after that? relay? Switch? Blower motor?
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Jan 9, 2016
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Ford 7.3L Power Stroke (1999-2003) :: AC Stopped Blowing Cold
My 02 F350 7.3 new to me trucks ac stopped blowing cold. Not air gap issue (shims have been removed prior to my ownership-I pulled hub and checked), the charge is good (according to the shop I went to for evac and refill), and the compressor's cycling quickly. I'm no HVAC guy by any stretch. I have a cheapie gauge from days long ago that I connected to my low side port (which I know isn't definitive) and it reads from 25 to about 40/45 depending on the cycle.
Additional info that may not be anything:
1) Where the line goes from accumulator to evaporator the foam seal is slightly messed up and I feel ice cold air coming out of the housing.
2) The line is warm before the orifice and cold after it.
3) The lines going to the accumulator are both hot (after taking it to shop, before were lukewarm).
4) The condenser doesn't seem to have excessive plugging and I have rinsed it with garden hose sprayer with no difference.
5) The air from the vents blows good, just warm.
6) I've replaced the actuator for the blend door already.
Ford 7.3L Power Stroke (1999-2003) :: A/C Slowly Starts Blowing Warmer Air When Sitting In Stopped Traffic
Sitting in stopped traffic for about 45 minutes and AC slowly starts blowing warmer air. Temp about 95 and very humid. Felt like AC just freezing up, but no frost on anything when I looked under hood. Hoping freon problem. About to start looking at it this morning.
View 14 RepliesFord 7.3L Power Stroke (1999-2003) :: Loss Of Power When The Heater Is On?
2002 7.3L SD ... He told me when he was taking his son to school he turned on the heater. When he did this he could feel the truck lose power, he turned the heater off and it drove fine. Turned it back on and power loss happened again. I haven't driven it to test yet or see what is happening but I also don't understand how this can happen. The heater did get warm, and he does not have to add coolant to the system.
View 13 RepliesFord 7.3L Power Stroke (1999-2003) :: Block Heater Won't Working?
I don't think that my block heater is working correctly if not at all.
View 14 RepliesFord 6.0L Power Stroke Diesel :: 2006 - Heater Air Blowing Only On Defrost
Have 06 super duty . Heater air blowing only on defrost. 4wheel drive. Is this a vacuum problem or some type of sensor or control problem?
View 2 RepliesFord 7.3L Power Stroke (1999-2003) :: DLC Fuse 3 Keeps Blowing
I have a 2001 F-450 SD with 7.3. What the problems would for the blowing of fuse #3. The DLC fuse. I mean I know it goes to the cigarette lighter as well. but when not in use it still blows.
View 1 RepliesFord 7.3L Power Stroke (1999-2003) :: Heater / AC Fan Running When Truck Is Turned Off
2003 CC 4x4 ... I am pretty sure I know what is going on, but I wanted to start a thread for when I confirm it. I am driving to work this AM and I hear the door ajar chime and I think to myself, uh oh...gauges all look good, there are no lights illuminated on the dash. I get to work and turn the truck off and my fan stays on. I think the ignition module is going bad. Either that, or my remote start is going on the fritz. I will update when I find out more.
View 3 RepliesFord 7.3L Power Stroke (1999-2003) :: Won't Start - Block Heater Won't Working?
I can't get my truck to start. The block heater isn't working and I previously put flush and water in it, intending to drive it and flush it directly after. Well I never really could drive it and now it won't start again. The weather is going to turn off cold, around zero this weekend. I need to know how to keep the block from freezing and cracking!
View 11 RepliesFord 7.3L Power Stroke (1999-2003) :: 2002 - Oil Temp Of Block Heater - 56 Too Low?
I wanted to specifically ask about the block heater though. Since I bought this truck I never was able to start the truck without plugging it in. Now that it's not running I'm thinking much more about the block heater.
Is 56 too low for this old truck to start? What temp should a block heater have the oil temp as seen by AE be?
I live in the southwest so it's not very cold here. plugging in the heater was even required in the summer unless the truck had been running. What kinds of engine trouble would require being plugged in in warm conditions?
Ford 7.3L Power Stroke (1999-2003) :: F350 - Heater Control Will Not Adjust
Heater control will not adjust, the one in the middle. I can turn it up and down, but it doesn't affect how much heat the heater is putting out. The other two work correctly. Do I have a bad switch or is the blender valve sticking? How can I tell? '99 F350, 1.25M miles.
View 1 RepliesFord 7.3L Power Stroke (1999-2003) :: White Smoke Blowing / Smells Like Fuel And Loses All Power
I am a mechanic and tow operator running a late 99 f350 7.3 6 speed cab and chassis wrecker. This truck has had a hard life and has been neglected for quite some time, and now has become my baby/headache. Truck starts great, idles nice, and will run great for about 5 minutes until it starts billowing white smoke that smells like fuel and loses all power. If you continue to drive it it will die. Sounds like it's dropping cylinders and will barely idle. If you stop for 5 minutes or so and let it idle it will smooth back out and will run great again for another minute or two, then right back to stumbling.
Using torque app, hpop pressure looks good when it's running well. Peaks at 3k, IPR maintaining 30-40% max. As soon as it stumbles you can see the hpop drop to 5-600 and the IPR will climb to 65%. Let it idea bit and they go back to normal, and stay good until it stumbles again.
Ive changed the fuel pump, ICP,rebuilt FPR, change fuel filter, pulled and cleaned the fuel tank (metal tank, no delamination, looks perfect inside). Pickup screen looked good. Cleaned the IPR, cleaned the hpop reservoir, there was no screen inside. Checked voltage at fuel pump, 11.78 across the pump with it running. Pulled valve covers, no noticeable leaks around injectors. Injectors have less than 5k miles. Remans with 100% larger tips.
To me it seems like the lpop is not keeping up with the hpop under load, starving it until you idle and let it catch up. Could it still be bad injector orings? Bad lpop? Something I'm not thinking of?
Ford 7.3L Power Stroke (1999-2003) :: A/C Only Blowing Out Defrost Vents?
As the title implies, that is my problem. Can't get the AC to come out of anywhere other than the windshield defrost vents. Y'all ever encountered this before?
View 4 RepliesFord 7.3L Power Stroke (1999-2003) :: F350 - A/C Is Not Blowing Cold As It Should
99 f-350 crew cab. The A/C is not blowing cold as it should. Have already replaced the compressor and clutch, orifice tube and accumulator, also cleaned evaporator coil and put a new blower motor on, also a new blend door actuator. Also put a valve in to block coolant from the heater core. System has had vacuum pulled and charged correctly by my mechanic, he says he doesn't know of anything else to do, that it was as good as its going to get. Ive been in 2 more trucks identical to mine and the A/C will freeze you out, as to where mine will not come close. Temp coming out of the vents barely gets down to 60 degrees
View 14 RepliesFord 7.3L Power Stroke (1999-2003) :: Fuse To The Starter Keeps Blowing
I had a problem with this issue a few months ago, was 45 minutes away from home, blew the fuse to the starter. Switched another one in, blew it too. Had it towed to a shop, they did some diagnostics, felt like it was a short in the starter, replaced it and all has been well (as far as that particular issue) until this morning. Got in it, turned the key it cranked for less than a second and stopped. I pull the fuse, sure enough, blown. Swap it with another, it blows.
I know I have a bare wire in the column, the OD light wire is chaffed, I fixed it before but it must be worn again because I can get it to light up depending on positioning of the shifter lever and as I recall, every time the fuse blows the steering wheel is cranked to the left.
Ford 7.3L Power Stroke (1999-2003) :: AC Not Blowing Through Front Vents
All vacuum lines are good, pump works, Canister isn't leaking, 4x4 activates and I can feel it, so Can't be vacuum leak. Replaced esof solenoid 6 months ago last time this happened, but this issue seems to be different. Watch this vid I made showing the issue.. after viewing video, do yall' agree I isolated the issue? If that one tug makes the air go through the front vents, that means everything else in the A/C mode selection works..
YouTube.....
Ford 7.3L Power Stroke (1999-2003) :: Replaced Heater Core Still Smelling Antifreeze?
replaced heater core because when pulling a trailer it would admit steam out the defrost vents and the smell of antifreeze, what it could be?
View 8 RepliesFord 7.3L Power Stroke (1999-2003) :: Oil Cooler - Tight Block Heater Plug?
Doing oil cooler. Block heater plug is very tight. Is it reversed threaten?
View 1 RepliesFord 7.3L Power Stroke (1999-2003) :: Power Windows Stopped Working
Recently my power windows stopped working...sort of. Here's what I mean: If the drivers door is closed none of the windows will go down. However, if I open the drivers door halfway or all the way I can roll up/down all the windows. If the windows are down and the drivers door is closed I can, almost always, roll up the drivers window, however the other windows in the truck will usually not roll up. Open the door halfway and up they go.
A couple of other things I have noticed. When I press the down button for the drivers door window, with the door closed, I can hear the relay, under the dash, kick on and the window will move about a millimeter down then stop. Additionally, the courtesy light on the drivers door comes on while the door is closed. I haven't checked if the other courtesy lights come on at the same time.
Hopefully my explanation is understandable. I would love to solve this issue. Getting tired of opening the door to roll down the windows. Plus when there's a fly in the truck and I'm driving I can't get it out.
Ford 7.3L Power Stroke (1999-2003) :: 2002 - Blowing White Smoke - Low Power - Rattling Noise From Engine - Broke Down?
Moving my worldly goods from California to Oklahoma in a rented 26' box truck with my wife following in our '02 F350 loaded to the gills with my lathe, mill, air compressor, weld and assorted machinery. Just west of Deming NM it started to blow lots of white smoke and down on power. Some rattling noises from the engine when throttled up & won't reach 3000RPM.
Had it towed to an impound yard for storage. Plan on sending a flat bed to pick it up when we get to Tulsa.
Any experience with a tilt back trailer capable of loading & transporting this truck that weighs around 17,000 pounds? My plan is to continue on to Tulsa & make arrangements from there.
Ford 7.3L Power Stroke (1999-2003) :: Fuel Filter O-Ring Blowing Out
My fuel filter lid o-ring keeps blowing out upon hot start, this has happened 4 times now once last week, I replaced filter and all was ok until Thursday it happens again I change the filter allis fine! Now today!!!!! TWICE I have to install new filters because the o-rings are blowing outside the bowl lid! I'm using the same BALDWIN PF7698 filters I've used for years, my reg. Is set at 75psi and holds steady! No spikes but I haven't been able to watch it when the o-ring blows out! Injectors and o-rings are new (<1000miles) no problems during operation at all!
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