The Stupid Engine Questions Thread

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Mike

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Post here if you have a simple question. This will help keep track of common info and reduce clutter.
 

99z28monster

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Why wont my damn truck idle under 1500 rpm? I am thinking a leak in the throttle body gasket am I on the right track? From what my buddy told me the truck doesn't really have any balls either. " I am in Iraq so I don't know" it is a 5.7 in a 94 silverado 4x4 with a 14 bolt rear. other than that everything else is stock mechanically.
 
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My truck is a 1993 1/2 ton 4x4 with a 4.3 v6 it has developed a random knock its quiet at start up it mainly does it under light acceleration but its alot louder than a spark knock I have narrowed it down to the area of the flywheel inspection cover or the oil pan with a mechanics stethoscope.

Now I have heard these engines had a problem with the flywheel or flywheel bolt that give off a rod knock type sound does anybody here have any other ideas or have heard of this type issue with the flywheel?
 

bluchevy

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wheres the ecm b fuse located in a tbi engine or is it the fuse that says ecm/ign on it?
 

low4x4

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what makes an engine a 12 oclock timing or a 2oclock timing...please don't say the timing mark and damper because i have a 2oclock timing mark and damper but the lite flashes at the 12 oclock position...please explain
 
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