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Discussion Starter #1
When driving my 1991 C 2500 5.7L pickup and she just stopped running. So I pulled the air cleaner cranked the engine and there was gas spraying so I pulled the #1 plug and there was spark, so then I pulled the distributer cap and it was badly corroded so I changed the plugs, wires cap and rotor, when I pulled the old rotor out it was broken and the shaft was rusty, I sprayed w-d 40 on the shaft put it all back together and she still won’t start. So I sprayed starter fluid in the carb and still nothing. What should I do next?
 

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Since you sprayed starting fluid in the TBI & it didn't fire over, I would re-check for spark. When you sprayed WD-40 in the dist you may have got smth too wet. Whenever you use starting fluid you should always get a result if you have spark, even if the spark is occouring at the wrong time
 

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Would have been easier to deal with the fuel delivery problem if you had left the ignition alone. Now you have two problems to fix. Start with a fuel pressure test. Double check you didn't put the rotor on backwards.
 

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Could possibly be your coil. Is your spark nice and bright? You could still be getting spark at the plug, but it is to weak to burn the air/fuel mixture.

---------- Post added at 12:06 AM ---------- Previous post was at 12:05 AM ----------

Oh yea, make sure you wipe out the cap and rotor if it has wd on them.
 

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Discussion Starter #5
All Good

I asked the folks at O'Reillys about my problem and it turned out to be the connection from the ignition module to the rotor was dirty, I cleaned both sides then put dielectric grease ($1.32) between them and now she purrs like a kitten. Thanks for all your replys
 

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Discussion Starter #6
All was good

Well after she started I drove for about 1 mile and same thing just stopped working. There is fuel I even sprayed some starter fluid and still nothing. How do I check the coil or the ignition module? Or should I be checking something else.
 

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Discussion Starter #7
Still need help

1991 pickup ¾ ton 350 engine just stopped running.
I Replaced:
Plugs
Wires
Cap & Rotor
Then tried to start and got nothing

So I replaced
Ignition control module
Then she started for 10 minutes

So I replaced
Coil
Fuel filter
Air filter

She still will only run for about 10 minutes then shuts off and won’t start again for hours.

I can spray starter fluid in carb and get nothing.

I do get trouble code 15 Coolant temperature sensor faulty

What to do next?
Could possibly be your coil. Is your spark nice and bright? You could still be getting spark at the plug, but it is to weak to burn the air/fuel mixture.

---------- Post added at 12:06 AM ---------- Previous post was at 12:05 AM ----------

Oh yea, make sure you wipe out the cap and rotor if it has wd on them.
 

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Sounds like a bad ignition module to me. They typically fail when they get hot and then work again when they cool down a bit.
Good Luck and God Bless
 

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1991 pickup ¾ ton 350 engine just stopped running.
I Replaced:
Plugs
Wires
Cap & Rotor
Then tried to start and got nothing

So I replaced
Ignition control module
Then she started for 10 minutes

So I replaced
Coil
Fuel filter
Air filter

She still will only run for about 10 minutes then shuts off and won’t start again for hours.

I can spray starter fluid in carb and get nothing.

I do get trouble code 15 Coolant temperature sensor faulty


What to do next?
Replace the coolant temp sensor. In the manifold, not the head.
 
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