car cranks but wont start...

GMC
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MARKLORY
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  • 10 POSTS
140,000 miles- 4x4
I have been having this problem with my truck like for a month now...the car seems to crank but wont start...i of course started with the basic. does it pass gas, yes.., do i have spark, yes.. i have done several things to see if I get lucky. changed the spark plugs, chnaged distributor, chnaged fule filter, air filter. I checked the spark from spark plug #1 and I got spark I also checked the spark from the coil and i got spark I checked the fuel from the valve and i got fule from it even though i get fuel from the valve, might it still be the fuel filter that is causing my truck not to start? when my truck is on it makes like a noice on the fule tank people tell me that its because the fulel filter is working it makes like this "zz" sound.
I have been turning my truck on my putting some starting fluid in the front i dont know what that is called but the air filter leads to it I think its the throttle and whn i put the starting fluid, the truck starts right away.
I also noticed that my truck has been a little shakier thatn normal, also what i noticed is that since these problems had started, i notced the neddle that marks my gas on the dash board is a little shaky that needle was never shaky it was always still and I noticed that when these problem started the gas neeedle started shaking any suggestion please, what else can I check or repair. THANKS
May 3, 2006 at 4:11 PM
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LOSONE
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NEVER, NEVER USE STARTING FLUID IN THAT ENGINE UNLESS YOU WANT ENGINE PIECES ON THE GROUND. If you have a Vortec engine it sounds like the problem is the fuel injector module, especially the fuel pressure regualtor which is imbedded under the intake manifold manifold.
May 3, 2006 at 5:22 PM
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MARKLORY
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where do i find the fuel pressure regulator...?? where is the intake manifold..??
May 3, 2006 at 5:27 PM
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LOSONE
  • CAR REPAIR CONTRIBUTOR
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The top radiator hose is connected to the intake. The pressuure regulator is locted as part of the fuel injection module under the intake. I would suggest letting a pro to it. It is not an esy job--good luck
May 4, 2006 at 8:06 AM