460 dies PLEASE READ!
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Mountain Pass
Joined: Apr 2016
Posts: 241
Likes: 2
From: Duluth, Minnesota
460 dies PLEASE READ!
I have a 88 F350. With a 460 and zf5. The other day I had to take it in to get the starter replaced. I chose a gear reduction starter. A/C Delco so it's quality. Fast forward to yesterday and today, now the truck dies somewhat randomly and when it does, It won't restart for a few minutes. The kicker is, when you turn the key to run, the check engine light will NOT come on. When it does show, the truck will start. Any ideas anyone? Thanks!
Tuned
Joined: Sep 2014
Posts: 358
Likes: 7
From: Ky
Don't worry at present about the CEL, it being on or off at keystart, but whether there are there new fault codes.
What was the outcome of that fuel leak last spring near the selector valve.
Also your investigation of fuel related issues after run time and what "used" (JY...your words) parts are now on the truck?
Run through that self diagnosis.
What was the outcome of that fuel leak last spring near the selector valve.
Also your investigation of fuel related issues after run time and what "used" (JY...your words) parts are now on the truck?
Run through that self diagnosis.
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Mountain Pass
Joined: Apr 2016
Posts: 241
Likes: 2
From: Duluth, Minnesota
No new codes, selector valve and fuel tank and both pumps were replaced. I am wondering if they ECM may be going bad. If they Check engine light does not show at KOEO, the ecm is probably not getting power or is dying. Did a system reset and unplugged ecm and plugged back in for a 100% good connection. As for used parts, just an IAC and TPS.
Logistics Pro
Joined: Mar 2005
Posts: 4,698
Likes: 47
From: Mexico, Missouri
I'm not sure about '88, if the CEL comes on and runs, thats good.
The fact that you mention it doesn't run when the CEL doesn't come on when you turn the key, indicates there is a problem with either the TFI module on the distributor or directly with the ECM.
I would be inclined to check the wiring between the ECM and the harness. And if I was that far, I would pull and inspect the ECM.
The fact that you mention it doesn't run when the CEL doesn't come on when you turn the key, indicates there is a problem with either the TFI module on the distributor or directly with the ECM.
I would be inclined to check the wiring between the ECM and the harness. And if I was that far, I would pull and inspect the ECM.
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Mountain Pass
Joined: Apr 2016
Posts: 241
Likes: 2
From: Duluth, Minnesota
I'm thinking it may be possible that the battery connection isn't the best? Where does the ecm get its power? Starter solenoid? Could have jumbled it around when swapping starter wires.
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