The spark plug gap for a GM vortec V6 is .060
.60
.045
.065
.60
.45
0.06
Consult the underhood sticker.
Could be a faulty spark plug or spark plug wire.
Consult the underhood sticker. By the way, the last Astro was in the 2005 model year.
.060 in inches.
which plug? oil, coolant, vacuum, hydrolic, or spark?
I was quoted $120 without new spark plug wires.