ej1618

Ok long story short, I had to get a new set of heads for my 96 t100. Today I installed the new timing belt and attempted a test start before complete assembly. The timing marks are all spot on by the way. Anyway the engine acts as if it wants to start but refuses to fire up. Now there are about 3 million vacuum lines disconnected still. Also the nimrod "mechanic" had the timing pullies on the wrong heads so I had to switch them.

So to my question, will the vacuum lines cause it to not start? I only saw a notch in the cam pullies no dowel holes, I may have missed them. Do all cam pullies have pin holes for the dowel pin? I'm perplexed, this truck ran like a champ before I had these morons work on my truck. It just had a blown head gasket. Any advice would be fabulous.. Thanks in advance E

millball

The air piping from the VAFM to the throttle body must be piped up tight or there will be no fuel. A safety feature that prevents fuel spills after an accident when the engine is killed with the ignition still on.

ej1618

VAFM? I'm not sure I know what that is. I had to order a new vacuum switching valve today because the fired mechanic broke a port off.. I'll put this on hold until that comes in and get all the vacuum lines reconnected.

millball

VAFM= vane airflow meter.

It is the electronic unit built into the top of the aircleaner box.

The large main air pipe runs between it and the throttle body.