Catastrophic engine failure?
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Senior User
Joined: Feb 2020
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From: SoCal
Trans “kicks” right around 4th gear/OD, shifts pretty hard in other gears, and the driveline vibration becomes most noticeable around 4th gear. He thought it’s a lockup issue. Maybe it’s the 2005 tires that are on the truck lol
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Senior User
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From: SoCal
I may end up ordering a new ICP and EBP sensor/tube too. The ICP is leaky, and the EBP is raising a code. I can also get the recall replacement CPS from Ford. Worst case scenario, I’ll change O-Rings and shim the injectors, or order rebuilt ones. I’d appreciate recommendations for injectors.
Before changing the tires (which are needed before it’s seriously driven anywhere), I want to rebuild the whole suspension and get a high-quality leveling kit/spacers to run slightly more aggressive tires. Will need an alignment too, so it makes sense to do it all at once.
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Senior User
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From: SoCal
Noticed this was disconnected today, what should I do with it? Assuming it’s a ground, any bearing on my issue?
replaced all the light bulbs, gonna clean up brake sensor (maybe it’s corroded), and I should probably find a way to remove the trailer brake controller. I also found an old starter hiding in the back seat, maybe they mis-installed it and it’s causing issues/jingling noise?
Hotshot
Joined: Jul 2008
Posts: 12,782
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From: N.GA Mountains
That flat braided wire should go from the circled bolt on firewall to the back of passenger head.
The main grounds from batteries to block also have wires to frame. There is a braided wire like that from frame to body under passenger door.
All grounds are ‘important’.
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Senior User
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From: SoCal
The cable I am holding is connected to the firewall bolt you circled, as marked in picture. It's supposed to go to the head of the motor? Could this be causing any of my issues?
Disconnected the brake controller to isolate any other potential issues. During this process, I noticed three wires "loose" under the hood, along with a "connector" with nothing connected. All four are marked in the pic. I'm reading that the connector might be for the idle controller accessory, but any guesses on the other wires?
There was also a wire that looked "spliced" into another wire within the harness, underneath the steering wheel. It had a little plastic coupler, with a small length of wire sitting parallel to the original wire within the loom. Looked OEM potentially. Any guesses? Hard to get a pic.
It's a Van Gogh
Joined: Feb 2010
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From: Elk Grove, CA
I'd hook that ground back to the firewall (nothing fancy, just brush the cable and firewall to ensure good conductivity then wrap around the bolt) then replace the ICP with OEM Ford or IH, and see where that gets ya.
Take the process step by step, work on _one_ issue at a time. Trying to do everything at once is just too confusing. Be methodical and we'll help ya get there.
If the center support bearing is bad that would explain a lot of the driveline/transmission noises. You can do that with typical hand tools. But put it off until you get the engine running right.
It will get right! These 7.3s are tough.
Take the process step by step, work on _one_ issue at a time. Trying to do everything at once is just too confusing. Be methodical and we'll help ya get there.
If the center support bearing is bad that would explain a lot of the driveline/transmission noises. You can do that with typical hand tools. But put it off until you get the engine running right.
It will get right! These 7.3s are tough.
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Hotshot
Joined: Mar 2014
Posts: 10,750
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From: Douglassville, PA
I'd hook that ground back to the firewall (nothing fancy, just brush the cable and firewall to ensure good conductivity then wrap around the bolt) then replace the ICP with OEM Ford or IH, and see where that gets ya.
Take the process step by step, work on _one_ issue at a time. Trying to do everything at once is just too confusing. Be methodical and we'll help ya get there.
If the center support bearing is bad that would explain a lot of the driveline/transmission noises. You can do that with typical hand tools. But put it off until you get the engine running right.
It will get right! These 7.3s are tough.
Take the process step by step, work on _one_ issue at a time. Trying to do everything at once is just too confusing. Be methodical and we'll help ya get there.
If the center support bearing is bad that would explain a lot of the driveline/transmission noises. You can do that with typical hand tools. But put it off until you get the engine running right.
It will get right! These 7.3s are tough.
Thread Starter
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Senior User
Joined: Feb 2020
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From: SoCal
This. Looks like the loose end has been sheared/cut
Hotshot
Joined: Mar 2014
Posts: 10,750
Likes: 1,065
From: Douglassville, PA
Look around on the head and see if you can find the other end of it hanging on there somewhere. You might need to get another ground cable.
Thread Starter
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Senior User
Joined: Feb 2020
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From: SoCal
the cylinder head right?