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07-10-2008, 08:00 PM
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#1 |
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Registered User
Join Date: Sep 2006
Location: st pete
Posts: 404
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stumble
i own a 1993 blazer with 4.3 vortec(aluminum intake) and on acceration it stumble then smooths out i threw plugs cap wires at it and a egr and a fuel pressure regulator and still the same any ideas
p.s-no codes
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_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_- 1972 K10 4"lift 33"tires (soon to be bigger and better) 2000 silverado 1500 2wd 2"coil spacers3" BL 285/75/16's Last edited by mothertrucker424; 07-10-2008 at 08:01 PM. |
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07-11-2008, 08:44 AM
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#2 |
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Nobody rides free
 
Join Date: May 2005
Location: PA
Posts: 1,076
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Re: stumble
fuel filter or filters?
My '01 was acting similar, not so much from a stop, but more accelerating pulling hills. turned out it had 2 gummed up filters.
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'71 C10 LWB 400SB/350TH  '86 K2O LWB 350SB/400TH-6" tuff country lift, Shackle flip - plow truck '06 HHR - wifes wheels '01 Blazer - daily driver "It's better to burn out than it is to rust." -Neil Young |
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07-11-2008, 07:20 PM
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#3 |
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Registered User
Join Date: Sep 2006
Location: st pete
Posts: 404
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Re: stumble
also replaced fuel filter i will run a pressure test tomorrow
__________________
_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_- 1972 K10 4"lift 33"tires (soon to be bigger and better) 2000 silverado 1500 2wd 2"coil spacers3" BL 285/75/16's |
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08-29-2008, 10:44 PM
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#4 |
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blood type; Retumbo
Join Date: Jan 2004
Location: next to my reloading bench
Posts: 10,269
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Re: stumble
did the pressure drop after you shut it off? (leaking regulator and/or plastic fuel lines inside the plenum)
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09-01-2008, 05:43 PM
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#5 |
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Registered User
Join Date: Sep 2006
Location: st pete
Posts: 404
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Re: stumble
yes i replaced reg. and lines and scrubbed inside plenum (fixed awhile back sorry for not replying sooner)
__________________
_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_- 1972 K10 4"lift 33"tires (soon to be bigger and better) 2000 silverado 1500 2wd 2"coil spacers3" BL 285/75/16's |
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