Sometimes it starts and then u turn off key and try immediately again and will not start what's the problem?
I would be suspicious of low fuel pressure. One psi in this system can mean the difference between starting and not starting.
Minimum fuel pressure should be 56psi. 54 or 55 will cause it not to start. It needs the pressure to open the mechanical poppets at the end of each injector. To low of pressure and the poppets will not open.
When end it does not start give it a couple shots or carb spray while s helper cranks it over. If it starts and stays running than stick with the low fuel pressure theory. Under vacuum, or once the vehicle is running, the poppets require less fuel pressure to open.
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SOURCE: no start/ stalling
youmay have a dead cell in your battery mine acted like yours igot it running at home i tested the battery and found it only had 10.6 volts this indicates a bad cell tip: if your battery is 4 or 5years old replace it because it needs it also you can damage your alternator by waiting till the last crank
SOURCE: 1994 GMC Sonoma Heater Problem
Sounds like either your motor or blower resistor is going bad.Gm blower motors tend to go bad from what i have seen.My chevy pickup is on its 3rd motor.There is also a hose that is connected to it that when the air blows it directs some to the motor to keep it cool.You can check that but it is probably your motor
SOURCE: 2003 Sonoma does not turn-over
U have lost the battery, check the cables, if they are clean (no corrsion) replace the battery, modern sealed batteries fail like this, crank fine and then puff nothing, happened to at least 5 times over the years and saw it all the time at work.
SOURCE: 99 gmc sonoma starts sometimes and sometimes it doesn't
It's possible then that you have a dead spot in the solenoid at the starter. have your starter check out or try replacing it. From what you described in your complaint, it sounds like a bad starter. Hope this helps you out.
SOURCE: 95 gmc sonoma just put in new starter now only starts sometimes.
Test your battery if it test good then replace your starter. Most big parts houses will test the battery and starter for you for free.
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