Spout connector
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Tuned
Joined: Aug 2009
Posts: 274
Likes: 4
From: British Columbia
Spout connector
97 f-250 HD 351.
Truck wouldn't start this morning, turns over but won't catch. No codes no lights.
I pulled the spout connector and it fired right up ran fine.
Shut it off and started it several times no problem.
Replaced the spout connector again no start.
Pulled the spout and it fired right up. I plugged the spout back in when its running, no change ran fine.
Shut it off, with spout in no start.
Any suggestions other than a book of matches?
Truck wouldn't start this morning, turns over but won't catch. No codes no lights.
I pulled the spout connector and it fired right up ran fine.
Shut it off and started it several times no problem.
Replaced the spout connector again no start.
Pulled the spout and it fired right up. I plugged the spout back in when its running, no change ran fine.
Shut it off, with spout in no start.
Any suggestions other than a book of matches?
Fleet Owner
Joined: Oct 2005
Posts: 20,789
Likes: 1,753
From: Kentucky
Bad computer. Removing the SPOUT plug takes the computer out of the equation for controlling spark.
On the other hand it's odd the truck continues to run when plugging the SPOUT back in.
Use a timing light to verify the timing SPOUT in and out.
On the other hand it's odd the truck continues to run when plugging the SPOUT back in.
Use a timing light to verify the timing SPOUT in and out.
Fleet Owner
Joined: Oct 2005
Posts: 20,789
Likes: 1,753
From: Kentucky
Removing the SPOUT is like removing the vacuum advance vacuum line and locking out the centrifugal weights in an old school distributor.
There is something amiss and the symptoms are pointing to a bad computer.
With the SPOUT in is there any spark when cranking the engine?
There is something amiss and the symptoms are pointing to a bad computer.
With the SPOUT in is there any spark when cranking the engine?
Thread Starter
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Tuned
Joined: Aug 2009
Posts: 274
Likes: 4
From: British Columbia
I recently replaced the ICM. Had a grey one put in a black one.
Will check for spark in the morning. Is it worth putting in a scrap yard computer.
This thing is on the block as soon as I can get to run
Will check for spark in the morning. Is it worth putting in a scrap yard computer.
This thing is on the block as soon as I can get to run
Logistics Pro
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From: Mojave, Ca
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Tuned
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A visual check is about the best you can do. There are to many variables for a salvage yard PCM to work without getting very lucky. Try to find one with compatible year, engine and transmission.
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Tuned
Joined: Aug 2009
Posts: 274
Likes: 4
From: British Columbia
Cranked over with the spot removed got no spark.
Pulled the spout took it for a drive it ran better than it has in awhile.
Seems to have lost the issue I've been dealing with in my other thread.
Pulled the spout took it for a drive it ran better than it has in awhile.
Seems to have lost the issue I've been dealing with in my other thread.
Fleet Owner
Joined: Oct 2005
Posts: 20,789
Likes: 1,753
From: Kentucky
What about SPOUT in?
Above you said you got no spark with the SPOUT removed?
Hotshot
Joined: Jun 2015
Posts: 12,878
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If the computer is causing the problem, you have taken the computer out of the loop as far as timing is concerned which was already stated in previous posts. At this point, I think, you should be searching for a replacement PCM/ ECM. I would go with a remanufactured computer versus junkyard/used since it seems like most people on here had decent success with them and you will have a warranty if there is a problem.
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Tuned
Joined: Aug 2009
Posts: 274
Likes: 4
From: British Columbia
Could this situation be related to the new ICM (black one) I put in a month or so ago.
Should I try another ICM (black/grey)?
$150 ICM is going to be cheaper than a rebuilt computer I'm sure.
Should I try another ICM (black/grey)?
$150 ICM is going to be cheaper than a rebuilt computer I'm sure.
Fleet Owner
Joined: Oct 2005
Posts: 20,789
Likes: 1,753
From: Kentucky
Your truck requires a black ICM. With the SPOUT in the computer controls the spark/timing signal to the ICM. With no spark SPOUT in typically points to a bad computer.
Remove the SPOUT, then that new black ICM is triggered off the raw PIP signal. That's why you now get spark. Another new black ICM is most likely going to unnecessarily thin your wallet.
Remove the SPOUT, then that new black ICM is triggered off the raw PIP signal. That's why you now get spark. Another new black ICM is most likely going to unnecessarily thin your wallet.