Ford 7.3L Power Stroke (1999-2003) :: OBDII Port Not Working- Fix?
Oct 13, 2015
I plugged in my basic OBDII scanner but I'm getting nothing back (the scanner works on my car so it's not the scanner). This is inline with the transmission shop where they said they couldn't connect either to my truck. But now the question is: now what? I don't think there is a fuse or such but how to troubleshoot the port.
Oh, and no, the CEL is not illuminated, just the ABS light remaining on from when my 4R100 was replaced a couple weeks ago. Can't connect to diagnose.
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Ok so the saga is continuing, not sure if its because enigma hates this mod or if I shorted something out when I was cutting the wires and mistakenly touched the ends together (protected terminal ends) some how or the monitor piece is just old and the fact that it has been my previous truck and this truck for a total combined 8+ years causing this conundrum....anyways the gauge seems to work (yay?) but it looks to read only "8"DC V?? but I know the power port (in dash) works as expected....so I am a bit lost here....one of the digits does look to be faded out as if the device perhaps is going bad and needs replacement....
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I have a 03 F-250, 5,4L / AT trans, FX4 4X4 with power Windows/Locks/ Mirrors. I recently had a problem with my windows and radio wouldn't work. When I would start the truck the windows wouldn't move and the radio wouldn't work. (Noticed the clock wouldn't even light up indicating no power). I was reading on here about the battery saver relay could be the problem and found out it was, so that is fixed. However, before I found this website I went to hook up my truck to my code reader/ diagnostic computer and it gave me the error code of no power from the OBD-II port. I made sure everything was fine on the code readers side by using on a different vehicle. I recently installed a trailer brake controller but that uses a cable/plug under the center of the dash.
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I have a 2003 F250 7.3L. I put new injectors in my truck four months ago and all of a sudden, I have 2 cylinders not working correctly, making the truck to run really badly. I sent the 2 injectors from the bad cylinders back for warranty and they replaced both of the injectors but nothing was wrong. I put them in and the truck still runs badly. I have a new fuel filter, new ICP, new CPS and glow plug relay. I cannot drive the truck, it smokes white at idle. I can unplug each injector at a time and cyclinder 5 does not change how the truck runs
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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.
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My power steering is only working when i turn it to the left. When I turn it to the right i have to get a 1/4 of a turn in until the power steering takes over. So i get under my truck to discover what seems to be a piece of my tranny missing. How screwed am I ???
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On my 2003 powersteering the windows and radio will just quit working. Then they will come on again. Maybe in and hour or a day or a week. Where do I sart.
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Four wheel drive not working?
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I have a 99 f350 Lariat. I was wondering if there is such thing as a cabin air filter on these trucks my a/c is blowing and its cold just not blowing hard enough like it used to if there is not a cabin filter is there a way to clean the evap coil. I always figured youd have to after so long since you always got dirt and what not in the truck the coil should stop up after so long its got to happen but how hard would it be to clean it?
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i have a 99 f250 7.3 powerstroke. the cam sensor was acting up. that what the scan tool said. i replaced the cam position sensor yesterday, and the truck is still acting up. the motor hitches and will shut off randomly. it tripped the check engine light, and the code is the "cam position sensor" once the truck is warmed up and shut down for like 10 minutes the sensor will not act up anymore. if i just start the truck and run it, even once it is up to tempature it will act up. but if i shut the truck down for about 10 minutes, it goes away. is there something else that could be causing this?
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Cigarette lighter works and shared fuse seems fine. OBD port even powers up my cheapo elm bluetooth reader. Unfortunately multiple different readers refuse to connect. I've tried disconnecting negative terminal for a half hour and trying again but no luck.
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I have an early 99 f350. when i got the truck the OD switch(maybe light too) didn't work. i ran it for about 1k mi. yesterday i left work to come home and i didn't have 1st or 2nd gear but still had 3rd and od. the only way to get 2nd is to manually put it in 2nd gear. 1st seems to be nowhere around.
I do not have a code reader and wont for at least a month or so. I did install a simple ts6 in it, that's about all i did with the truck.
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A little background information is that I was towing a large gooseneck trailer about a year ago when half way to the destination the lights quit. Not just the trailer but the truck tail lights, turn signals and everything except the headlights. Well after getting there and unplugging everything it stayed the same. Well on the way home without the trailer the lights began working again. All the truck lights acted as it never happened. No blown fuses or anything.
Well things are are going ok since then but I can never get running lights to any of my 3 trailers to work. Turns and brake lights are fine. What gives? All the fuses are fine and the truck running lights work just fine. One thing I have noticed is that on my horse trailer I have the little led lights on the sides operational... I would have assumed these to be the same as the tail running lights.
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I have a 01 f-250 7.3 6 speed. I bought the truck a few days ago and the 4x4 wasn't working the dealer replaced the transfer case motor. I have another 01 f-250 that i have been switching parts out of to see if that makes a differences and found nothing to work. Ive switched the switch on the dash out and nothing. Ive switched the two relays under the hood and nothing. I have also checked all fuses. and the connectors on the transfer case.
So I finally popped the covers off the two relays and squeezed them with my fingers and boom transfer case locked into 4lo and then i can squeezed the other and boom back in 2h! So now I'm lost, I know the wiring from the relays to the transfer case is good and the switch is good and relays are good so I'm at a loss.. Also cruise control isn't working idk if that could be related i don't think it is but idk?
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So I posted a while back about fixing all the leaks I had and what I was going to do. I finally completed all the repairs and reinstalled the engine and it won't start. Cranked a bunch and checked oil level in hpop its good so I pulled plugs in oil rails there is oil present there, cracked the yellow valve on fuel bowel there is fuel there. unplugged the icp sensor and cranked more still no indication of wanting to start.
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I don't think that my block heater is working correctly if not at all.
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I have looked all over the Internet, but I can't find out how to change the lights on the dashboard. I have checked all the fuses. I have no clue have to check the dimmer switch. Though, the over head light does come on when I turn on the switch. All the lights for the check engine and such light up. The dash will not light up during the night. Someone told me that there should be a youtube video or a how to steps. I am very new to fixing my new to me truck. I have checked the how to steps on this forum and a few others.
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New to these trucks so a quick question on the window switch controls. I put power to the truck for the first time in about 8 years. First thing i wanted to do is see if the power windows worked. Everything went down very nicely but getting them back up was a no go from the driver seat. They all worked well seperatly but not from the pilots seat? Is it a typical issue with these trucks? When rocking the switch I can hear a relay under the dash panel close to where the access panel for the fuses. Mirrors work as well as do the locks. I pryed up the switch panel and un plugged it and reinstalled it with no luck. As it is I cant get the driver side window up or the passanger window up from the driver side?
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Never really intended to tow heavy with my truck. But heavy towing seems to have found me. I've been hauling dump trailers to the local demo site and I've been toying the scales at the site between 21,000 and 28,000 lbs (way more than I want to haul, but my boss is a cheap jerk and won't stop loading the trailer until the straps barely make it over the trailer). My intent is to dump the thing right where he loads it next time he does it, as I've asked him to quit putting my wallet and maybe life in jeopardy.
Any way, my tow haul button hasn't worked through any of this. Am I murdering my tranny? The engine seems to grunt through just fine. But I'm worried about the fact that it doesn't down shift to go up hills.
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tell a difference between "Lo" and "Hi" with your wipers? I'm worried mine might be failing because on Skippy there's not 10c worth of difference between the two. Hi is barely faster than Lo.
Also, wheres the wiper motor located? Is it under the vent cowl with the wiper arms?
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I have searched everywhere for the location of the blinker relay on my 02 F-250 7.3 and getting mixed results and still not found.
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