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  #16 (permalink)  
Old 02-07-2012, 06:47 AM
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Every.Possible.Place.

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  #17 (permalink)  
Old 02-07-2012, 07:35 AM
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just for shts and giggles.. take the gas cap off.. and start it
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  #18 (permalink)  
Old 02-07-2012, 01:02 PM
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Quote:
Originally Posted by stich626
just for shts and giggles.. take the gas cap off.. and start it
That did work for me once. I had just replaced the gas cap and it was non-vented or something.
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  #19 (permalink)  
Old 02-07-2012, 03:13 PM
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I was thinking about properly inflating the tires to see if that did the trick.
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Old 02-07-2012, 03:42 PM
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Quote:
Originally Posted by BraveLil305
I was thinking about properly inflating the tires to see if that did the trick.
Be nice. What stich626 said was a serious suggestion. And it did work for me once. Check out the first page of this thread.
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  #21 (permalink)  
Old 02-08-2012, 06:49 AM
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If it was the gas cap I think we would have had a problem long before now.
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  #22 (permalink)  
Old 02-08-2012, 07:33 AM
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Quote:
Originally Posted by BraveLil305
I was thinking about properly inflating the tires to see if that did the trick.
sorry, buddy but if thetank vent isn't working , the tank can be under vacuum.. add a pump sucking on it and you get pressure(vacuum) thats stoping fuel movement..

but you knew that..
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Old 02-08-2012, 07:38 AM
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Quote:
Originally Posted by BraveLil305
If it was the gas cap I think we would have had a problem long before now.
ya, maybe maybe not, I know, you have to remove the engine to, remove the fuel cap, right, it's way to hard of a think to do, to take a plugged vent out of the question..
cause no one ever gets in the engine bay when working on a truck..
and the line for the vent is on the frame rail or near it.. going to the charcoal can.. .. nope, don't wanna check off the easy stuff..

this is why, you have line techs and diagnostic techs.. some dismiss the easy fixes
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  #24 (permalink)  
Old 02-08-2012, 12:26 PM
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Quote:
Originally Posted by BraveLil305
Every.Possible.Place.
Any chance you got a bad tank of fuel? Did you gas it up right before the problems started?

Piss anyone off bad enough they'd doctor the tank?

Is the vacuum advance working? If it was hooked to a manifold vacuum source and it took a dump, there goes the advance at idle, along w/the idle speed.

What happens when you add curb idle? What happens when you advance the timing?

What do the plugs look like? Is there any indication of a too-rich idle, like odor, black smoke? Could mean pluggged idle air bleeds, leaking wells, too high float level. If not too rich is float too low? What about the power valve stuck in the "up" position?

EGR still on it? If so is it stuck open at idle? What about the PCV valve/hose?

How's about the modulator- if it took a dump it can still function, yet there will be a vacuum leak, and possibly pulling in ATF into the intake. Pull the hose and check for ATF, then pull a vacuum on the vacuum modulator can and see if it holds.

Choke unloader functioning? It should crack the choke open 1/4" or so as soon as the engine starts (unloader position). Does the choke open fully after about 3 minutes?

Is there any ignition miss associated w/this?

Last edited by cobalt327; 02-08-2012 at 12:31 PM.
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  #25 (permalink)  
Old 02-08-2012, 03:39 PM
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Check your timing. It could be too far retarted.
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  #26 (permalink)  
Old 02-15-2012, 08:51 PM
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It was the low down rotten no good for nothing dirty spark plugs. Now it's back in commission.
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  #27 (permalink)  
Old 02-16-2012, 07:51 AM
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Hey, It's a learning curve
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