5.0 wont run right

[PaceFever79]

I know we seem to have arrived at a carb or vacuum issue.

But I found this info while trolling technical forums for something else and thought I'd pass it along. MSD has stated through research that "one of the main reasons for box malfunctions and failure is from poor grounds. This includes vehicles that have rear mounted batteries with a ground to the frame, and another ground up front from the frame, which gives too much resistance, especially on subframe vehicles."

[TWR2003]

I know we seem to have arrived at a carb or vacuum issue.

When did 'we' arrive at that?

In my last post I specifically asked OP to temporarally replace his MSD ignition with the stock Duraspark as I believe there is a chance that the MSD box is the cause.

T

[JACook]

We still need to know whether the crankcase has vacuum on it -without- the PCV
connected. I'm at a loss why such a simple test has not yet been performed...

[PaceFever79]

When did 'we' arrive at that?

In my last post I specifically asked OP to temporarally replace his MSD ignition with the stock Duraspark as I believe there is a chance that the MSD box is the cause.

T

Heh, you keep doggin' me ..... it's okay... I can take it

Note to self; Parse your words. Every word.

[PaceFever79]

MSD has stated through research that "one of the main reasons for box malfunctions and failure is from poor grounds. This includes vehicles that have rear mounted batteries with a ground to the frame, and another ground up front from the frame, which gives too much resistance, especially on subframe vehicles."

Btw, what this is saying, you should run a ground cable up to the front frame and engine block.

[dean85gt]

I have that ground I posted it before, Ive got a bunch. Sorry I havent been on Ive been busy working. Someone is coming down with spare carbs and a distributor on friday and hopefully we can get this sorted out.

Thanks for the help so far.

[cb84capri]

We still need to know whether the crankcase has vacuum on it -without- the PCV
connected. I'm at a loss why such a simple test has not yet been performed...

so dean did you figure out the answer to this question?

cale

[dean85gt]

And the winner is....


open vacuum port on the intake thats under the throttle bracket.

THANK GOD IT WASNT SOMETHING MAJOR.

I knew everything else was right, just need another set of eyes with me

[dean85gt]

[Ltngdrvr]

Video sounds like a big vacuum leak to me.

And the winner is....


open vacuum port on the intake thats under the throttle bracket.

So, I guess I am the winner, huh?

Almost always turns out to be something simple.

[TWR2003]

And the winner is....


open vacuum port on the intake thats under the throttle bracket.

THANK GOD IT WASNT SOMETHING MAJOR.

I knew everything else was right, just need another set of eyes with me

Glad you got it. Can you elaborate and/or show a picture of where the leak was?

T

[PaceFever79]

And the winner is....


open vacuum port on the intake thats under the throttle bracket.

THANK GOD IT WASNT SOMETHING MAJOR.

I knew everything else was right, just need another set of eyes with me

Wow. I feel cheated Glad you got it working!