1998 5.0 crank no start

bulldog · Sep 25, 2018

Bought the truck Saturday. Drove it all day then it sat all day Sunday. Get in it Monday and it won't start. Hooked fuel pressure guage up, it's reading 60 when cranking. Seems to have enough spark to ignite. I just don't get it..... Any help appreciated

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Jared Jackson · Sep 25, 2018

If you shoot some carb cleaner down the throttle body and then try to start it, does it fire off?

I assume you pulled a few random plugs and verified spark? Any plugs wet?

I just troubleshot an issue where I had spark at one plug that I pulled. Dumped some carb cleaner down the TB and tried to fire it off, it didn't. Ended up being that I got some water under my distributor cap and apparently wasn't getting spark to enough cylinders. I just happened to pull the one that WAS working. I was getting fuel, but didn't have enough spark. The carb cleaner test helped me come to that conclusion. So I was just checking if you pulled a few random ones to verify spark.

bulldog · Sep 25, 2018

Yeah I just pulled the first two on the driver side bank. The moisture under the cap has me thinking. It has been wet and rainy here for a few days. Thanks

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Jared Jackson · Sep 25, 2018

bulldog said:
Yeah I just pulled the first two on the driver side bank. The moisture under the cap has me thinking. It has been wet and rainy here for a few days. Thanks

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No problem! You just have to figure out which one you don't have or have enough of, spark and fuel. You know you have some spark, add some fuel. You can always pull that distributor cap and have a peek under there. However, if I was going to pull an old cap and rotor, I would have some new parts to put back!

Just be careful with the small torx head screws, they are not captured and will fall into the deepest darkest crevices that the back of your engine has to offer. I was able to use an inspection mirror while removing the rear screw, made it easier to see what I was doing.

Deathpunch0311 · Sep 25, 2018

Is your security light on? Could be the passlock bull$hit is activated. My truck did the same thing, crank no fire. Had spark and fuel pressure. Thought it was the fuel pump was dropping out
When that is activated it thinks the truck is being stolen. Will crank but won’t fire.
Try this
http://passlock.bloggstar.com/reset-passlock-vats/

bulldog · Sep 25, 2018

Deathpunch0311 said:
Is your security light on? Could be the passlock bull$hit is activated. My truck did the same thing, crank no fire. Had spark and fuel pressure. Thought it was the fuel pump was dropping out
When that is activated it thinks the truck is being stolen. Will crank but won’t fire.
Try this
http://passlock.bloggstar.com/reset-passlock-vats/

No, security light comes on when I first turn the key, then goes off. I don't think that's what it is, but I'll try the reset and see.

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Deathpunch0311 · Sep 25, 2018

Worth a shot.
If not the only thing you’ve wasted is 30mins of your time

Deathpunch0311 · Sep 25, 2018

Double post deleted

bulldog · Sep 25, 2018

Jared Jackson said:
If you shoot some carb cleaner down the throttle body and then try to start it, does it fire off?

I assume you pulled a few random plugs and verified spark? Any plugs wet?

I just troubleshot an issue where I had spark at one plug that I pulled. Dumped some carb cleaner down the TB and tried to fire it off, it didn't. Ended up being that I got some water under my distributor cap and apparently wasn't getting spark to enough cylinders. I just happened to pull the one that WAS working. I was getting fuel, but didn't have enough spark. The carb cleaner test helped me come to that conclusion. So I was just checking if you pulled a few random ones to verify spark.

That's what it was Jared, moisture under the cap. All fixed and purring like a kitten now. Appreciate it!

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Jared Jackson · Sep 25, 2018

bulldog said:
That's what it was Jared, moisture under the cap. All fixed and purring like a kitten now. Appreciate it!

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awesome! Glad you are back on the road!

1998 5.0 crank no start

bulldog

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Jared Jackson

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Deathpunch0311

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Deathpunch0311

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