01 Blazer engine issues - The 1947 - Present Chevrolet & GMC Truck Message Board Network

61_FL_Apache · 01-06-2017, 12:23 PM

Hey guys, I have an 01 Blazer with a 4.3. It has 103k on the clock and its having issues. It starts and idles fine. No CEL's, but when you drive it, it feels like its surging. Not ignition missing or backing firing, but power loss and comes back about 1 surge cycle per second. It seems like its starving for something. After a visual inspection every seems to look fine. The only thing I have tried is replacing the fuel filter. I tend to think its fuel pressure related, but not sure.

any advice you can give?

01-06-2017, 12:23 PM	#1
61_FL_Apache Who Me? Join Date: Sep 2010 Location: Royal Palm Beach, FL Posts: 4,067	01 Blazer engine issues Hey guys, I have an 01 Blazer with a 4.3. It has 103k on the clock and its having issues. It starts and idles fine. No CEL's, but when you drive it, it feels like its surging. Not ignition missing or backing firing, but power loss and comes back about 1 surge cycle per second. It seems like its starving for something. After a visual inspection every seems to look fine. The only thing I have tried is replacing the fuel filter. I tend to think its fuel pressure related, but not sure. any advice you can give? __________________ Steve 1997 Tahoe LT 4D 2WD (DD) 2001 Blazer 4D 2WD 1961 Apache 10 (sold) 1965 C10 Stepper (sold)



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