changed plugs,wires,dist cap,rotor, it is a 4.3l engine
2006-09-04 06:39:59 · 4 answers · asked by Anonymous in Cars & Transportation ➔ Car Makes ➔ GMC
means either your plenum or the gasket has a leak in it
2006-09-04 06:42:28 · answer #1 · answered by pig2let2000 1 · 0⤊ 0⤋
Well it is the pressure reg. or the fuel lines... both are in the intake. pop the top, turn on the key and see what leaks. If you replace the cpi unit it is a good idea to do the lines too.
2006-09-04 16:58:27 · answer #2 · answered by Darrell R. 3 · 0⤊ 0⤋
have you done a compression check on the cylinders that flood?
low comp. will cause such a problem as well.
you did the others like you should have.
try and see if they are low, bet they are.
good luck
2006-09-04 13:45:59 · answer #3 · answered by transvainia 3 · 0⤊ 0⤋
pressure reg inside plenum is bad, more than likely.
2006-09-04 14:41:57 · answer #4 · answered by deltech 4 · 0⤊ 0⤋