Started with instrument cluster failure...
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Mountain Pass
Joined: Apr 2014
Posts: 104
Likes: 0
From: Central Oregon
Started with instrument cluster failure...
So, on my drive home from the pub tonight, my clusters went dead, then came back on, then died again. This behavior repeated for the 5 mile drive home. In addition, I believe the lights weren't working as well. The engine was still running, so I simply continued on home and parked for the night. The only thing I can think of might be the problem is the fact that I replaced the serpentine belt the day before yesterday. Is it possible that the alternator is not charging the battery properly and that is what my problem is? Any ideas out there? Thanx in advance.
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Mountain Pass
Joined: Apr 2014
Posts: 104
Likes: 0
From: Central Oregon
I'm heading to the parts store to get a new serpentine belt as the one I grabbed last time was just a hair on the large side. I'm also going to test my alternator just to be sure. The battery this morning was at full power and all the electrical systems seem to be working fine. I'll keep you posted.
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Mountain Pass
Joined: Apr 2014
Posts: 104
Likes: 0
From: Central Oregon
Now, it appears as though the battery is dead. Just clicks when starting. When I turn the key off, the tach and speed needles flicker. Died at a stop light. Luckily the Mrs. was handy to tow me home with the F-150. I'm getting it towed to the shop now to see wtf is going wrong? Don't undestand it. Some sort of electrical issue, but what? No bumps or loose wires or hoses that I could see.
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Thread Starter
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Mountain Pass
Joined: Apr 2014
Posts: 104
Likes: 0
From: Central Oregon
Died at a stop light. Luckily the Mrs. was handy to tow me home with the F-150. I'm getting it towed to the shop now to see wtf is going wrong? Don't undestand it. Some sort of electrical issue, but what? No bumps or loose wires or hoses that I could see.
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Thread Starter
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Mountain Pass
Joined: Apr 2014
Posts: 104
Likes: 0
From: Central Oregon
Just replaced the battery and alternator and it ran beautifully all the way home, but now it's dying again. If I start it and leave it alone, it appears to run without issue. If i rev the engine and then let off the accellerator, it dies. If a flip it into drive and let off the accellerator a bit, it dies. However, I haven't seen any issues with the instrument cluster since the new alternator and battery. Any other advice?
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Mountain Pass
Joined: Apr 2014
Posts: 104
Likes: 0
From: Central Oregon
Replaced the fuel filter, but still no-go. Now, the idle is low, between 300 and 400 rpm, and is pretty rough. If I step on the accelerator, the rpms do not increase, but the engine struggles and dies. So now I'm wondering if it could be the fuel pump? Does anyone out there have any ideas on this? I did need to replace the battery and the alternator as they were completely shot, and when I replaced the fuel filter, there was some pretty dark deposits within, but now I'm grasping at straws as to what it could be. With the remaining behavior, I'm really leaning toward fuel pump, but I just don't know. Any help or advice would be greatly appreciated. Thanx in advance.
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Mountain Pass
Joined: Apr 2014
Posts: 104
Likes: 0
From: Central Oregon
Unfortunately, I'm not reading any codes whatsoever. I'm afraid I'm going to have to take it to the stealership and bite the bullet on the troubleshooting/repair costs. Thanx.
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Mountain Pass
Joined: Apr 2014
Posts: 104
Likes: 0
From: Central Oregon
Long story short, the truck is back to its old self once again!!! In the end, the fix for the low RPM and dying on acceleration was for the computer to be reset and reprogrammed according to TSB 10-12-11. It basically states there are cases of vehicles with the 6.8l engine exibiting hesitation, loss of rpm, and/or low idle RPM driveability concerns. The powertrain control module (PCM) needs to be reprogrammed to the latest calibration using ids release 67. The dealer hooked me up with no additional charges. Needless to say, I'm very happy I have my truck back!!!
