96 s10 blazer no start
06-30-2008, 05:21 PM
#1
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96 s10 blazer no start 96 s10 blazer with 4.3, has good fuel pressure, has spark, will crank but will not start, doesnt sound like it even tries to fire. the security light is not on. i have checked all pcm/ign fuses, they check good, no corrsion in the pcm connectors or fuse block. vehicle stalled going down the road and will not start....any ideas?
07-01-2008, 10:02 AM
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On The Tree
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what is good fuel pressure? Even if it has 50psi it won't start.It needs to be in the upper 50s to start. Mine had 52 and wouldn't start. Now it has 58 and cranks up everytime. Put a fuel pressure gauge on it and see what kind of pressure you have. You can also put a squirt of starting fluid in the top of the air inlet and see if it starts.If it does its a fuel pressure issue.
07-01-2008, 10:05 AM
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I had a Cutlass back in my High School days that did the same thing goign down the road. Fuel Pressure seemed good (didnt check with guage) Eventually after replacing multiple other things it ended up being the fuel pump. it probably had around 30psi but like stated obove it needs more.
07-01-2008, 10:20 PM
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I would verify all things myself. Never assume the other person did it, or did it right. Just behind the intake is a schrader valve to check fuel pressure. Put a gage on it and see if you have 57 or more when CRANKING. If that checks out, and you have spark, I would start looking at timing, crank, and cam sensors. TXTURBO is correct about the starting fluid in the intake too. It takes damn near 60 psi to start, but will run on 40.
07-01-2008, 10:36 PM
#6
Replace the Dist. Cap they are a known problem in those engines, they will fire but not on the right cylinder becuase the spark is is arcing INSIDE the cap not under it. Cap and rotor should be done if it hasnt in a while, very cheap and easy to get to. Good luck
