sputtering 4.3 cant figure out what it is??
#1
10-05-2009, 04:41 PM
sputtering 4.3 cant figure out what it is??
for about a month now i have had sputtering when i dont let my truck warm up. or if i hit the gas hard, since this started i have replaced the fuel sending unit, the fuel pump, gas tank, and fuel filter, also a new KandN filter that seems like a waist of money. any ideas? it bogs down and wont go. also gas millage is real bad (worse then before)
#2
10-05-2009, 04:58 PM
have you checked the fuel injector assy. under the plenum for leaks or done a pressure test?
#4
10-06-2009, 06:14 PM
you need to do a fuel pressure test heres the link on test procedures...https://blazerforum.com/forum/showth...ht=fuel+system
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