The truck almost starts but wont turnover it sounds like it might start but just never does. when this happened the truck started for a few seconds and then never started again
How old is battery and clean connection.Could have 12.5V but do not havecrank power.
SOURCE: 1999 Chevy S10 cranks but wont start
A very common problem on the 99 S10 is a leaky fuel pressure regulator in the intake plenum.What happens is when the truck sits for a few hours or more the regulator leaks all of the fuel in the fuel injection system into the intake air plenum. This does 2 things, 1 it has no fuel pressure when starting and 2 it floods the air intake with raw fuel. Sometimes if you turn the key on wait 3 seconds then turn key off then turn key back on and just turn key to crank starter for a split second and wait 3 seconds.do this 3 times to repressurize fuel system then crank to start(you will hear fuel pump buzz each time you do this.also you may have leaky fuel injectors. Try to crank engine with the gas pedel to the floor. This will tell the computer to stop spraying fuel trhough the injectors and it will start. Joe ASE Master Tech
SOURCE: chevy astro van turns over but wont start when
Check to see if the fuel pump is kicking in,
when you turn the key on without starting the van you should hear it kick on for about 2 seconds,
It could be...
A clogged fuel filter...
Blown fuse for the pump..or bad pump relay..
No gas
Bad fuel pump
SOURCE: 2ooo chevy s10 2.2 automatic starting issues
Try cycling the ignition on and off three times, Turn the ignition to the run till the check engine light turns off on the dash and then turn it off and do it again three times to pressurize the fuel line. Then start it, your fuel filter may be dirt or the fuel check valve at the fuel pump may be bad making you loose your fuel prime. Start with replacing the fuel filter first and let me know if that helps and let me know if cycling the ignition to pressurize the fuel line helped.
SOURCE: Reduced power code comes up and my truck stalls.
I had the same problem, and the solution was cleaning the throttle body, it does need to be completely removed to be cleaned thoroughly. I just used some brake cleaner on a rag to clean off all the carbon deposits. A friend of mine who is a dealer tech had only seen this trouble code once, and this was the solution. So far, my light has not come back on and the truck is running alot better at idle.
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