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05-20-2013, 05:39 PM
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#1 |
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Registered User
 
Join Date: Apr 2007
Location: Foster Rhode Island
Posts: 1,176
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Vortec stumbles on hill and wont accelerate
I have a 01 chevy van with a 5.7 vortec that has been struggling on hills and doesent want to accelerate past half pedal. was throwing codes po300 and po154. already changed filter, right bank 02 sensor, mass air flow and after changing o2 sensor code changed to po302. today checked fuel presure and it was 52 cycling key on and off and 50 at idle. presure falls imediatly upon turing key off. regulator? spider? pump? please help!
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05-28-2013, 07:47 AM
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#2 |
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Registered User
Join Date: Apr 2007
Location: Foster Rhode Island
Posts: 1,176
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Re: Vortec stumbles on hill and wont accelerate
New fuel pump fixed her right up. apparently 50 lbs is much to little on the pressure, runs like a new truck now.
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