Ford 7.3L Power Stroke (1999-2003) :: Heater Fan Stopped Blowing
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?
View 7 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) :: 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) :: CEL / Rough Running / Smoke Blowing When Cold
I had been fighting some problems with injectors for several years. I didn't have time to dig into it. I knew what I needed to do, just needed to find time to do it. I honestly thought it was and injector and thought I would have to go to new sticks because I've had so many problems with the remans.
Well I finally had time last week. I pulled the passenger side valve cover and ohmed the injectors. It would be almost impossible to get the leads in the injector while installed the truck. I kept an old valve cover harness, so I cut a pig tail off of it and plugged it into the injectors so I could test. You can see the meter attached to the pigtail in the pic.
To my surprise all four were all right around 2.7 ohms. You need to set your meter so you are getting a reading w a decimal. If you set it to high it will only show a whole number and it is better to have a more accurate reading.
I then plugged the wiring harness back in and tested it from there. The #7 injector gave over 6 ohms. This told me that my wiring harness was bad. I went OE and replaced it. I had a problem w a Dormant valve cover gasket before so didn't want to go that route. After I replaced the gasket and harness all my readings were under 3 ohms. They were all lower than w the old harness.
Ford 7.3L Power Stroke (1999-2003) :: LED Stopped Indicating And Truck Would Not Start In Cold Weather
I have the LED mod and several weeks ago, my LED stopped indicating and the truck would not start in cold weather unless I jumped the terminal on the relay. I replaced the relay and while I was tightening one of the small lugs, the one towards the nose of the truck, I felt it break.
The truck acted just like it had been for the weeks prior, if I didn't jump the relay, it wouldn't cold start, so I assumed, because I had broken that small lug, it wasn't getting the signal to turn them on.
So what now? obviously the GP's themselves are working, as the truck starts when I jump them. But for some reason no signal is getting to the relay. What do I need to check to see what is going on between the PCM and the relay?
Ford A/C :: 1999 Expedition - Overheating / Air Stopped Blowing Cold
Last week my 99 Expedition w/ 130,000 miles overheated. Air stopped blowing cold, then blew REALLY cold momentarily, Temp. went to high, check engine light on, car wouldn't accelerate. Was a block from home - put it in neutral and got home. Let it cool down. Checked all fluids, etc. Took it to our family mechanic - been our mechanic for 5 years - could find nothing obviously wrong so he cleared the code. Car ran fine for a week then temp started to rise again yesterday. Only common thread...the rear air was on both times. Once we were highway driving, other time in stop/go traffic. Replaced the thermostat last year.
View 2 RepliesFord Super Duty (1999-2016) :: 2002 - AC Stopped Blowing Cold At All
Background : 2002 Excursion 7.3L, 320k miles ...
AC was working OK, but not great. Then AC stopped blowing cold at all. Checked pulley, gap was huge, but pulley bearing was completely destroyed. Like, 1/2" wobble, half the ball bearings in there. Amazed it hadn't seized. Replaced pulley, set air gap to bottom of the spec.
Air seems to blow kinda cold briefly, then fades to no cooling after a couple minutes. Same at idle or moving. Front and rear both not cold. Lines in engine bay are cool, but not real cold
Compressor body feels hot, like...right at that threshold of too hot to touch. Don't have pressure gauges, but will buy/borrow some and take some readings.
What would symptoms of a clogged orifice tube be? What would symptoms of a clogged condenser be? If low on r134, I could refill, but any tips on chasing down leaks?
Ford 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 Super Duty (1999-2016) :: AC Stopped Blowing Cold / Clutch Clicking On And Off
2002 F350 with V10. A/C stopped blowing cold. I can hear the clutch clicking on and off, so probably needs refrigerant? Other thing is that with A/C off, the temp control turned to cold, and fan on, it blows hot air. On my other vehicles with A/C off and temp turned to cold, I get outside air at ambient temp.
I removed the cover off the evap core under the dash and observed the blend door opening and closing as the temp selector is moved. The duct door moves correctly, so am I'm missing something? Is the Ford system such that ambient air is always heated? This happens even in cold temp conditions.
Ford 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) :: 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) :: 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!
View 14 RepliesFord 7.3L Power Stroke (1999-2003) :: Fuse Keeps Blowing Out - No Parking Lights?
i have a 99 f350 psd, my problem is i don't have normal; FONT-SIZE: 100%; COLOR: dark green; FONT-FAMILY: inherit">parking</NOBR> and instrument lights, it blows fuse number 8 as soon as i turn the switch on. i checked all the wiring on my tail lights and the trailer hookups. i even disconnected the wiring harness going my tail lights and trailer hookups and it still blows the switch. #8 fuse is trailer tow electronic brake, illumination, park lamps, trailer tow park lamp relay coil. it also blows #4 fuse which is trailer tow backup lamps, trailer tow park lamps.
View 14 RepliesFord 7.3L Power Stroke (1999-2003) :: Radiator Cap Slowly Blowing Off Pressure?
I had to replace injector cups due to diesel in the coolant. Then I had to replace the degas bottle because it was swollen and looked like the michelen man. Then I had to replace the radiator cap (again) because I suspect that the diesel in the coolant had dissolved the seal in the radiator cap and it wouldn't hold pressure. Now I've got a bunch of new parts in there.
I parked yesterday, popped the hood -- and heard the radiator cap slowly blowing off pressure. It was the type of sound that you hear when a tire has a slow leak. I tightened the cap and the sound didn't stop. I REALLLY tightened the cap to the point where I felt as if any more tightening would cause the threads on the degas bottle to strip, and the noise lessened.
Unless I'm mistaken, a radiator cap is supposed to hold pressure to 16psi and then release all at one time, not slowly bleed off pressure with a hissing noise.
Ford 7.3L Power Stroke (1999-2003) :: Blowing Through Outer Axle Seals?
So my outer axle seal went out on the passenger side again after only 4,000 miles. What gives!? I can't figure out why its burning up. My hubs seem to be working correctly. I've only used the 4wd a hand full of times since I replaced it. Any thoughts?
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