LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Want your opinion of fuel problem..

Old Feb 23, 2007 | 01:09 AM
  #1  
Hark_z's Avatar
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Want your opinion of fuel problem..

OK car wont start, hasnt in 6 months. Im just now worrying about it..SEpt 1st it died on me and sputtered out and hasnt started since. We determined its a fuel problem; the car has a ton of spark. The fuel pump is brand new and still makes the swishing sound. After compressing the schrader valve its been determined that its just air coming out not fuel. So it possibly there is a kink in a line? Something is clogged? The fuel filter is new pretty much but Ill be replacing it anyways. Now the gas has been sittin in the car for months but I have put in some winter additive. Tomorrow Im gonna get my lazy butt to it and put in some fresh gas and slap on a new filter and see what happens. I know this seems more like a story than question but experienced ones, what is going on with my fuel system??
Old Feb 23, 2007 | 02:45 AM
  #2  
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From: Jackstandican
Buy yourself a fuel pressure guage. Even if the pump is operating or at least making noise doesn't mean you are getting adequate fuel pressure.
Mine did the same thing. I could hear the pump, pushed the schrader valve in, fuel squirted out along with air and my guage read a big fat ZERO. After purging the system of air I got it up to 20psi, but the engine would not run normally. I have yet to check voltage to make sure the pump is getting the correct voltage, but me thinks the fuel pump is bad.
www.shbox.com has a writeup on checking fuel pressure and voltage.
Old Feb 23, 2007 | 11:49 AM
  #3  
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the wires to your fuel pump are either backwards or you are not getting 12 volts to
it
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