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08-26-2008, 06:59 PM | #1 | |
AF Newbie
Join Date: May 2007
Location: kansas city, Missouri
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fuel pump problem? 1991 S10 4. 3
hie Im having a problem with my 4x4 S10 blazer. Ive changed the vac cyl, map, egr valve. injectors, filter. The blazer starts up but wont idle. When I pump the throttle to keep gas going it will rev then act like it floods. Maybe the regulator? I have to keep tapping the pedal to stay running. Hold the pedal half way and it will rev up then die. Any suggestions? I have a fuel pressure tester but I dont know where to hoo it up at. I was told it hooks up on the rail but I didnt think the 91 throttle body had a rail. Does it? Please help
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08-27-2008, 08:48 AM | #2 | |
AF - Advisor
Join Date: Sep 2005
Location: New London, Missouri
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Re: fuel pump problem? 1991 S10 4. 3
On that one it is best to test the fuel pressure at the fuel filter.
And check the fuel pressure at same time. Look for 9/13 lbs of pressure cold and hot. Does it have a check engine light or any codes? Post back fuel pressure. MT
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Remember proper testing gives us the answer to many problems. MT |
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