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2009 - 2014 Fuse 27 Melting Issue

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Old 02-24-2017, 10:12 PM
  #191  
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So, did anyone happen to check their truck out with Forscan who had an issue and was forced to do this fix?

Reason I ask is I just checked Forscan and P0230 (FP Primary Circuit - Short to Ground or Circuit Open) popped up in my BCM. This error code does not trigger the MIL light. Truck runs fine and fuse looks good.

This is interesting because I just pulled the fuse the other day after reading this thread to check, and I just performed a rather "experimental" mod on my radio bezel (cutting climate control PCB!) and I'm hoping the timing is coincidental (just received the repair kit on Thursday.)

Either way will be doing this in the morning weather permitting. Maybe P0230 is a warning sign for this and those wishing to hold out on doing the repair can keep an eye out for it.
Old 02-24-2017, 11:24 PM
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Originally Posted by anotherfordguy
So, did anyone happen to check their truck out with Forscan who had an issue and was forced to do this fix?

Reason I ask is I just checked Forscan and P0230 (FP Primary Circuit - Short to Ground or Circuit Open) popped up in my BCM. This error code does not trigger the MIL light. Truck runs fine and fuse looks good.

This is interesting because I just pulled the fuse the other day after reading this thread to check, and I just performed a rather "experimental" mod on my radio bezel (cutting climate control PCB!) and I'm hoping the timing is coincidental (just received the repair kit on Thursday.)

Either way will be doing this in the morning weather permitting. Maybe P0230 is a warning sign for this and those wishing to hold out on doing the repair can keep an eye out for it.
PCM tests the fuel pump circuit. If PCM commends fuel pump off and there's no voltage detected on the circuit=P0230 Pulling fuse=No voltage
Old 02-25-2017, 08:39 AM
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How does the PCM know the fuel pump circuit voltage? The output of the fuel pump relay (which also powers the injectors) is connected to the PCM.
Old 02-25-2017, 09:28 AM
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Originally Posted by Feathermerchant
How does the PCM know the fuel pump circuit voltage? The output of the fuel pump relay (which also powers the injectors) is connected to the PCM.
The pcm grounds the control circuit. When the pump is commanded off there's voltage back to the pcm, it is looking for that voltage. If it's low or zero it thinks there's an open or short in that circuit. At least this is how I understand it.
Old 02-25-2017, 05:12 PM
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Originally Posted by Feathermerchant
How does the PCM know the fuel pump circuit voltage? The output of the fuel pump relay (which also powers the injectors) is connected to the PCM.
Originally Posted by 4Stroke
The pcm grounds the control circuit. When the pump is commanded off there's voltage back to the pcm, it is looking for that voltage. If it's low or zero it thinks there's an open or short in that circuit. At least this is how I understand it.
What do you think? Am I close?
Old 02-26-2017, 01:14 AM
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Well I see on the wiring diagram that the 12V out from the relay is connected to the PCM. So if it commands the relay on but there is no voltage then I can see where it would set a code.
Old 06-14-2017, 11:35 PM
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Originally Posted by Lee308
This will be a recall when it causes an engine to stop while on the interstate at 75mph and causes a wreck.
Ford will be forced at that point by the law suit.
I have been driving for over 40 years, I have never seen a fuse stop the engine on any of a few dozen vehicles I drove in that time.
Actually, mine just did fail on the interstate while pulling my trailer at 65 mph with my 012 SCREW, 5.0. Engine died for about 15 seconds, then came back on with check engine wrench and flashing battery symbol. I pulled off at the next exit and pulled into a Flying J parking lot. Shut her down and checked all the battery connections. All tight and no corrosion. Started it back up and no warnings. We were day and half from home, so I took it to the nearest Ford dealer, luckily only 7 miles away from where we were.

Service manager put a tester on the battery and it showed good. Then he had a mechanic come out to read the codes. Nothing. Then the mechanic says he thinks he's pretty sure he knows what the problem is and tells us about the TSB. He pops the lid off the fuse box and shows me that the fuse is burned looking on one end.

I had them do the fix and after a couple of hours (mostly paper work, proper procedure BS), we were good to go.

But, there was some BS from Ford warranty folks. They would only cover it if they saw a code for the failure printed out from a diagnostic computer. A visual inspection by a trained tech that can see that the fuse is a crispy critter and busted in half when pulled out wasn't good enough for them. So, the service guy and the tech went out to the truck, pulled the new fuse and cranked the engine until the code popped up. Voila, it was covered under warranty.

Still cost me $100 per my 100K mile Ford extended warranty.

Someone mentioned they were charged $400+ by a dealer for the fix. Mine would have been $157 without the warranty coverage, so not sure why he was charged so much.

I also agree with others that this should be a recall. Me and wifey are both 70 years old and we don't need to be stuck out on an interstate highway in the middle of nowhere in 100 degree heat because of an idiot design flaw. At least we owners should have been notified there was a potential serious, sudden vehicle disabling problem. Also, every oil, lube and inspection were done at the dealer since the truck was new. You'd think that they would be on the lookout for important TSBs that could strand the truck or cause a dangerous situation (like being rear-ended on the interstate.) We were just very lucky that the circuit decided to reconnect long enough to get off the interstate and to a dealer, and that the tech was astute enough to know what the problem probably was, without a diagnostic tool telling him.

I think you're nuts if you decide to ignore this TSB fix, because it probably will bite you at a most inopportune time. I sure would have done the fix if I had known about it, before setting out on a 5K mile RV trip, mostly out in the boonies.

-jj
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Old 06-15-2017, 11:21 AM
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JJ thanks for posting this.

sounds like that is a good Ford dealer and aware of the products they sell. I appreciate the market data point of 157 bucks for this repair. I think that's fair too. Glad you ended up ok
Old 06-15-2017, 02:13 PM
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Originally Posted by jjinatx
Actually, mine just did fail on the interstate while pulling my trailer at 65 mph with my 012 SCREW, 5.0. Engine died for about 15 seconds, then came back on with check engine wrench and flashing battery symbol. I pulled off at the next exit and pulled into a Flying J parking lot. Shut her down and checked all the battery connections. All tight and no corrosion. Started it back up and no warnings. We were day and half from home, so I took it to the nearest Ford dealer, luckily only 7 miles away from where we were.

Service manager put a tester on the battery and it showed good. Then he had a mechanic come out to read the codes. Nothing. Then the mechanic says he thinks he's pretty sure he knows what the problem is and tells us about the TSB. He pops the lid off the fuse box and shows me that the fuse is burned looking on one end.

I had them do the fix and after a couple of hours (mostly paper work, proper procedure BS), we were good to go.

But, there was some BS from Ford warranty folks. They would only cover it if they saw a code for the failure printed out from a diagnostic computer. A visual inspection by a trained tech that can see that the fuse is a crispy critter and busted in half when pulled out wasn't good enough for them. So, the service guy and the tech went out to the truck, pulled the new fuse and cranked the engine until the code popped up. Voila, it was covered under warranty.

Still cost me $100 per my 100K mile Ford extended warranty.

Someone mentioned they were charged $400+ by a dealer for the fix. Mine would have been $157 without the warranty coverage, so not sure why he was charged so much.

I also agree with others that this should be a recall. Me and wifey are both 70 years old and we don't need to be stuck out on an interstate highway in the middle of nowhere in 100 degree heat because of an idiot design flaw. At least we owners should have been notified there was a potential serious, sudden vehicle disabling problem. Also, every oil, lube and inspection were done at the dealer since the truck was new. You'd think that they would be on the lookout for important TSBs that could strand the truck or cause a dangerous situation (like being rear-ended on the interstate.) We were just very lucky that the circuit decided to reconnect long enough to get off the interstate and to a dealer, and that the tech was astute enough to know what the problem probably was, without a diagnostic tool telling him.

I think you're nuts if you decide to ignore this TSB fix, because it probably will bite you at a most inopportune time. I sure would have done the fix if I had known about it, before setting out on a 5K mile RV trip, mostly out in the boonies.

-jj
That's why I did mine on my own, I did not want to have to depend on a 800 number, possibly in the middle of the night on a highway. Mine was in the beginning phase of melt down.
Old 06-15-2017, 04:09 PM
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A ticking time bomb, that is very avoidable.

I did mine myself a few months ago.


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