Wont crank.
Lead Driver
Joined: Sep 2003
Posts: 7,014
Likes: 207
From: SoCal
If the SPOUT has such an effect on whether it starts, I would check the ignition timing.
The modern (post mid-70's) electronic ignition systems will retard the ignition timing when cranking, which is like pulling the SPOUT. But this is supposed to make the engine easier to crank, and should not have any effects on whether the engine starts or not, unless the timing is way off. In this case, it sounds like the static timing may be way too advanced. On the other hand, the retard is triggered by a signal going from the starter solenoid to the EEC, so if you bypassed that, the EEC may not get the signal, so may not apply the retard.
And if you have to "jump" (I assume bypass?) the solenoid, to crank the engine, either it or its connections are bad.
The modern (post mid-70's) electronic ignition systems will retard the ignition timing when cranking, which is like pulling the SPOUT. But this is supposed to make the engine easier to crank, and should not have any effects on whether the engine starts or not, unless the timing is way off. In this case, it sounds like the static timing may be way too advanced. On the other hand, the retard is triggered by a signal going from the starter solenoid to the EEC, so if you bypassed that, the EEC may not get the signal, so may not apply the retard.
And if you have to "jump" (I assume bypass?) the solenoid, to crank the engine, either it or its connections are bad.
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Mountain Pass
Joined: Apr 2013
Posts: 107
Likes: 1
Been working on same problem. Found out that it had wrong starter solenoid relay on it, now it cranks fine. Tested everything I could, put a new dizzy in it, new icm, It has everything but spark. Any ideas?
Fleet Owner
Joined: Oct 2005
Posts: 20,786
Likes: 1,751
From: Kentucky
Remove the computer (PCM) then open it up to inspect for leaking capacitors. By removing the SPOUT plug you are removing computer control of the spark. The ICM will trigger on the raw PIP signal so that's why you get spark with the SPOUT removed. The computer may not be damaged enough to prevent it from using the PIP signal to trigger the injectors like it is designed to do.
While your symptoms are not the "classic" bad computer you have verified and replaced enough parts to make it very suspect as your root cause.
While your symptoms are not the "classic" bad computer you have verified and replaced enough parts to make it very suspect as your root cause.
Cross-Country
Joined: Feb 2024
Posts: 72
Likes: 8
From: By God Virginia
So the brand new more expensive Napa fuel pump that I bought last week is dead it just makes clanky clicky broken medley noises does anybody know why that would be the case why it would work for a week and then die did I install it improperly? Should I move to an electric fuel pump there was a non-working electrical fuel pump on it when I bought it I went back to the mechanical thinking that just seemed like a good idea and that lasted for not very long and now another one's been eating in a matter of days
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Lead Driver
Joined: Sep 2003
Posts: 7,014
Likes: 207
From: SoCal
So the brand new more expensive Napa fuel pump that I bought last week is dead it just makes clanky clicky broken medley noises does anybody know why that would be the case why it would work for a week and then die did I install it improperly? Should I move to an electric fuel pump there was a non-working electrical fuel pump on it when I bought it I went back to the mechanical thinking that just seemed like a good idea and that lasted for not very long and now another one's been eating in a matter of days
Then, can you explain more clearly, what fuel pump you installed? From what you wrote, I'm assuming you installed a new mechanical pump to replace an electrical one?
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Cross-Country
Joined: Feb 2024
Posts: 72
Likes: 8
From: By God Virginia
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