Ran fine, next day runs like crap (V 6 vortec 4.3)
Fuel tank was in the last quarter. Timing mark is jumping all over the place. Only keep it running
if I keep my foot on the peddle. Eyeballed the dist. at #1 position and vib damp mark seems to
be TDC. Pulled the plastic ring on carb and the two fuel injectors seem to be putting out the
same & equal fuel skirt on both. Dist. is electronic. Computer comes back with all 12's.
Temp.50/60 nite,70/80 day. No sensor on timing mark guide. Dist.wires are correct order.
Seems like timing to me. Runs like timing jumped a tooth or plug wires are crossed. Is there a
fuse that would cause this or a sensor? Computer? Blocked exhaust? Spark plugs go out that
fast? Electronic Dist. do you TDC from plug wire? (What is extra line on vib damper.) Water in
fuel (Hard to believe) Thanks Pete
