I've replace the fuel filter, plugs wires, cap, rotor, fuel pump and plug wires. Problem- I have to crank on it for 20 to 30 seconds before it will start. I've found if I crank it for 5 seconds or less and let go of the key it will fire. Then if I try it again and let go of the key it wil fire a few more times. Try it again and let the key go, it will most of the times start then. It actually started the best last winter when it was 30' below zero outside. It would start up within 5-8 seconds. I have 60 PSI at the test point for fuel presure. It doen't seem to matter if I have run the truck for more than a hour or if it is the first start of the day. It still act's the same every time. Another problem that just started is the flasher relay keeps buzzing on and off when it wants to. Some times it makes the normal blinker sound but most of the time it constantly buzzes without a break in the sound. I replaced the relay and it actually got worse? Last fall I was pulling a trailer with a load of rocks. I had the 4 way flashers on for about a hour, then they quit flashing. I'm thinking that is when the relay problem started. If I hear the flasher start to make noise I can make it stop by stepping on the brake pedal, turning on the signals or pushing the 4 way button. All those actions will make the flasher quiet. The 4 ways still do not flash but the noise is gone. The problem then is my turn signals can't work with the 4 way button depressed. Any help on the 2 problems will make me a very happy man. I didn't mention that I have 280,000.+ miles on it.
SOURCE: 1997 Chev Cavalier hard starting
it sounds like the check valve in the fuel pump is letting the fuel bleed back into the tank
SOURCE: 1996 4.3 vortec S10. Cranks
The plenum shouldn't be damp with gas. Is it a throttle body fuel injection system?
Could be a leaky injector.
Fuel Meter Body & Fuel Injectors (4.3L Engine)
Removal & Installation
1995-2002 Models (RPO L35)
To Remove:
4.3L (RPO L35) Fuel meter body assembly
To Install:
NOTE: Use care in removing the fuel injectors to prevent damage to the electrical connector terminals. The fuel injector is serviced as a complete assembly only. Also since the injectors are electrical compartments, these injectors should not be immersed in any type of liquid solvent or cleaner as damage may occur. Fuel injector cleaning is not recommended.
4.3L (RPO L35) Fuel meter body assembly
Note: When ordering new fuel injectors, be sure to order the correct injector for the application being serviced.
1993-2005 Models (RPO LU3)
To Remove:
4.3L (RPO LU3) Fuel meter body assembly
To Install:
NOTE: Use care in removing the fuel injectors to prevent damage to the electrical connector terminals. The fuel injector is serviced as a complete assembly only. Also since the injectors are electrical compartments, these injectors should not be immersed in any type of liquid solvent or cleaner as damage may occur. Fuel injector cleaning is not recommended.
Note: When ordering new fuel injectors, be sure to order the correct injector for the application being serviced.
SOURCE: 1998 silverado will turn over but wont start up
check the car computer or control box.sammyc47.
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There is no fuel on the motor anywhere.
It has a throttle body on it.
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